Chef de mission
Date et lieu de départMon Oct 20 00:00:00 CEST 2003 Nouméa (Nouvelle-Calédonie)
Date et lieu d'arrivéeFri Nov 07 00:00:00 CET 2003 Nouméa (Nouvelle-Calédonie)
Navire : Alis
Travaux effectués :
- Bail, Patrice, Poppe, Guido T., Groh, Klaus, 2004, The Tribe Lyriini. A revision of the recent species of the genera. Lyria, Callipara, Harpulina, Enaeta and Leptoscapha, A conchological iconography, IX, 5-72
Macpherson, Enrique, Machordom, Annie, 2005, Use of morphological and molecular data to identify three new sibling species of the genus Munida Leach, 1820 (Crustacea, Decapoda, Galatheidae) from New Caledonia, Journal of Natural History, 39, 11, 819-834
doi: 10.1080/00222930400002473 Résumé [+] [-]Three cryptic species of the genus Munida from New Caledonia, previously identified as M. tuberculata Henderson, 1885, M. notata Macpherson, 1994 and M. clinata Macpherson, 1994, are described and illustrated. The three species are identified by subtle and constant morphological characters, which match clear differences in molecular sequences (16S rDNA and COI genes). The results also confirm the importance of several of these characters (e.g. length of the antennular and antennal spines) in the taxonomy of the genus Munida.
Zezina, O. N., 2005, On the systematic position of some recent brachiopod species from the Norfolk Ridge (West Pacific), Invertebrate Zoology, 2, 1, 29-33
Résumé [+] [-]Five species of brachiopods were found in 7 samples obtained during the cruise Norfolk 2. These species were known before from this region. Four of these species are common and are considered as markers of the deep-sea biofilter, distributed globally in the upper bathyal of continental slopes and seamounts. This deep-sea biofilter remains poorly explored at low latitudes of the Western Pacific. The systematic position of examined species has been clarified. Neoancistrocrania norfolki Laurin, 1992 is included in the family Valdiviathyrididdae Helmcke, 1940. Stenosarina crosnieri (Cooper, 1983) is relocated to the genus Dallithyris Muir-Wood, 1959. A new genus, Laurinia gen. n., was established after the study of soft tissues of Fallax neocaledonensis Laurin, 1997.
Akimoto, Seiji, Itoi, Shiro, Sezaki, Keijiro, Borsa, Philippe, Watabe, Shugo, 2006, Identification of alfonsino, Beryx mollis and B. splendens collected in Japan, based on the mitochondrial cytochrome b gene, and their comparison with those collected in New Caledonia, Fisheries Science, 72, 1, 202–207
Résumé [+] [-]The sequences spanning 307 bp of the mitochondrial cytochrome b gene were determined for 45 sepcimens of Beryx splendens and seven specimens of B. mollis collected in Japan, resulting in identification of 11 and three haplotypes in the two species, respectively. The parsimony tree was constructed from the determined sequences and those registered into the GenBank database as species A and W of B. splendens collected in New Caledonia, featuring with two clades. The first clade comprised species W from New Caledonia and B. mollis in the present study, whereas the second one contained species A from New Caledonia and B. splendens in the present study. These results demonstrate a large geographic distribution for both B. splendens and B. mollis. Some of the haplotypes found in Japan were identical to those of New Caledonia for both B. mollis and B. splendens, suggesting levels of gene flow at the trans-oceanic scale.
Cleva, Régis, van Wormhoudt, Alain, 2006, On two rare and poorly known species, Stylodactylus discissipes Bate, 1888, and S. serratus A. Milne-Edwards, 1881 (Crustacea, Decapoda, Stylodactylidae), Zoosystema, 28, 2, 347-358
Résumé [+] [-]More than a century after its description from the Kermadec Islands, north of New Zealand, Stylodactylus discissipes Bate, 1888 has been rediscovered south of New Caledonia, and in the Austral Islands, French Polynesia. DNA analyses show that specimens from these two widely separated areas clearly belong to the same species, and represent two populations that appear to be in early stages of speciation through isolation. Stylodactylus discissipes shares numerous morphological characters with S. serratus A. Milne-Edwards, 188 1, known from the eastern and western Atlantic, so that the synonymy of the two species could be considered. Molecular data support the small morphological differences observed, giving evidence that these two species are indeed different.
Crosnier, Alain, 2006, Penaeopsis Bate, 1881 (Crustacea, Decapoda, Penaeidae) récoltées dans le Pacifique sud-ouest par les campagnes françaises depuis 1976. Description d'une espèce nouvelle, Zoosystema, 28, 2, 331-340
Résumé [+] [-]Penaeopsis (Crustacea, Decapoda, Penaeidae) collected in the south-west Pacific by French expeditions since 1976. Description of a new species. This work is based on collections made in the south-west Pacific by IRD (ex ORSTOM) and the Museum national d'Histoire naturelle, Paris. It deals with four species of Penaeopsis Bate, 188 1: P challengeri de Man, 1911, P eduardoi Perez Farfante, 1977, P rectacuta (Bate, 188 1), and a new species, P mclaughlinae n. sp. Depth zones and geographic distributions of the three known species are revised, especially those of P challengeri. Penaeopsis mclaughlinae n. sp. is closely related to P eduardoi but it is easily distinguished by the more sinuous shape of the distal part of the ventrolateral lobules of the petasma, and the large rounded protuberance on the median plate of the thelycum.
Davie, Peter J. F., Crosnier, Alain, Richer de Forges, Bertrand, Justine, Jean-Lou, 2006, Echinolatus n. gen. (Crustacea, Decapoda, Portunidae) with description of two new species from the South-West Pacific, Mémoires du Muséum national d'Histoire naturelle, 24, 193, 393-410
Résumé [+] [-]Echinolatus n. gen. is described for four species, E. bullatum (Balss, 1923), from the Juan Fernandez Islands off Chile, E. caledonicum (Moosa, 1996) from New Caledonia, E. proximum n. sp. from French Polynesia, and E. poorei n. sp. from the Great Australian Bight and southern Victoria. The first two species had been previously attributed to Nectocarcinus A. Milne Edwards, 1860. Echinolatus is characterised by a subhexagonal carapace, a quadrilobate front, at least the last pair of anterolateral carapace teeth, and usually others, bearing spinules or spiniform denticles on the anterior margins, the chelipeds having the carpus armed with a long pointed tooth at its anterointernal angle which also has a smaller strong tooth basally. E. bullatum is redescribed.
Geiger, Daniel L., 2006, Eight new species of Scissurellidae and Anatomidae (Mollusca: Gastropoda: Vetigastropoda) from around the world, with discussion of two new senior synonyms, Zootaxa, 1128, 1-33
Résumé [+] [-]Eight new species of Scissurellidae and Anatomidae are described: Scissurella kaiserae new species from the Panamic; Scissurella lorenzi new species from the Indo-Malayan archipelago; Scissurella maraisorum new species from South Africa; Sinezona garciai new species from the Caribbean; Sinezona globosa new species from the tropical Western Pacific; Sinezona macleani new species from the Philippines; Sinezona singeri new species from the Red Sea; and Anatoma jansenae new species from southern Australia. Radulae of Scissurella kaiserae and Sinezona singeri are illustrated. Anatoma munieri (Fischer, Oct. 1862) is identified as a senior synonym of Anatoma turbinata (A. Adams, Nov. 1862), and Sukashitrochus morleti (Crosse, 1880) is shown to be a senior synonym of Sukashitrochus indonesicus Bandel, 1998, and Sukashitrochus simplex Bandel, 1998. These synonymies are based on examination of type material in the Museum Nationale dHistoire Naturelle, Paris; scanning electron microscope images of the types are provided, and lectotypes are here selected.
Guerao, Guillermo, Macpherson, Enrique, Samadi, Sarah, Richer de Forges, Bertrand, Boisselier, Marie-Catherine, 2006, First stage zoeal descriptions of five Galatheoidea species from Western Pacific (Crustacea: Decapoda: Anomura), Zootaxa, 1227, 1-29
Résumé [+] [-]The first zoeal stages of the galatheids Neonida grandis, Agononida squamosa and Munida javieri, and the chirostylids Eumunida annulosa and E. capillata are described and illustrated from laboratory-hatched material obtained from ovigerous females collected from south western Pacific. The morphologies of the first zoeae are compared with the same larval stage of other known anomuran species. The larval characters of Agononida squamosa and Neonida grandis are similar to those described for Agononida incerta. Munida javieri exhibits features not present in other described species of Munida such as the setation of the endopod of the maxillule and the antennal morphology. Eumunida annulosa and E. capillata do not show abbreviated development as in other described chirostylids such as Uroptychus and Gastroptychus, and its larval morphology is equivalent to the first stage of galatheid zoeae. However, many morphological characters of E umunida species are typically pagurid, such as the two terminal plumose setae of the antennal endopod, the three-segmented endopod of the maxillule, the posterior margin of the carapace without spines, and the scaphognathite with 5 plumose setae and without a posterior lobe.
Li, Xinzheng, Bruce, Alexander J., 2006, Further Indo-West Pacific palaemonoid shrimps (Crustacea: Decapoda: Palaemonoidea), principally from the New Caledonian region, Journal of Natural History, 40, 11-12, 611-738
doi: 10.1080/00222930600763627 Résumé [+] [-]Based on the material deposited in the Museum national d'Histoire naturelle, Paris, collected from the Indo-West Pacific, principally from the New Caledonian region, the present paper reports 117 palaemonoid shrimp species, which belong, respectively, to Anchistioididae ( one genus, one species), Gnathophyllidae ( one genus, one species), Palaemonidae Palaemoninae ( seven genera, nine species), and Palaemonidae Pontoniinae ( 30 genera, 106 species), including eight new species. The new species are all Pontoniinae: Mesopontonia brevicarpalis sp. nov., Palaemonella komaii sp. nov., Periclimenes crosnieri sp. nov., Periclimenes forgesi sp. nov., Periclimenes loyautensis sp. nov., Periclimenes paralcocki sp. nov., Periclimenes paraleator sp. nov., and Periclimenes pseudalcocki sp. nov. The last six new species are members of the deep-water "Periclimenes alcocki species complex'', which has more than two ( usually four) pairs of dorsolateral telson spines anterior to the posterior telson margin, the cornea is usually reduced, the dactyl of the major second chela is generally flanged and the chela is sometimes covered with small tubercles. The complex is usually found at more than 200m depth in the West Pacific. The species can be distinguished from each other by the armature of ambulatory propod and dactyl, diameter of cornea, rostrum shape and the number of pairs of dorsolateral telson spines. Mesopontonia brevicarpalis sp. nov., from the southeast coast of Africa, is the seventh species of the genus. Palaemonella komaii sp. nov. is very similar to Palaemonella dolichodactylus Bruce, 1991 and Palaemonella hachijo Okuno, 1999. These three species share the features of very long and slender ambulatory pereiopods with the dactyl more than eight times longer than its basal depth and with several long setae on the dorsal dactylar margin.
Macpherson, Enrique, 2006, New species and new occurrences of Galatheoidea (Crustacea, Decapoda) from New Caledonia, Zoosystema, 28, 3, 669–681
Résumé [+] [-]Four new species of the genera Eumunida Smith, 1883 (E. spinosa n. sp.), Munida Leach, 1820 (M. aulakodes n. sp., M. devestiva n. sp.) and Torbenia Baba, 2005 (T. calvata n. sp.) are described and illustrated from specimens collected during recent cruises carried out off New Caledonia. Eumunida spinosa n. sp. has two well developed spines on the anterior border of the fourth thoracic sternite (subgenus Eumunida de Saint-Laurent & Poupin, 1996), the posterior region of the carapace with complete striae, the carapace with two pairs of anterolateral spines, no ventral pad on the propodus of the chelipeds, and two rows of well developed spines on the palm of the cheliped. Munida aulakodes n. sp. is characterized by the presence of three spines on the branchial lateral margins of the carapace, spines on the anterior ridge of the second abdominal somite, and two carinae separated by a furrow, on each lateral part of the seventh thoracic sternite. Munida devestiva n. sp. has a carapace without complete transverse ridges, small eyes, with the corneae barely wider than the eyestalk, and the abdominal segments unarmed. Torbenia calvara n. sp. is easily differentiated from the other species of the genus by the absence of spines on the anterior ridge of the second abdominal segment, and the small size of the first anterolateral spine of the carapace. A new occurrence of the rare species Pseudomunida fragilis Haig, 1979 is also reported.
Monsecour, David, Monsecour, Kevin, 2006, The genus Angaria Röding, 1798 (Gastropoda: Turbinidae) in New Caledonia, with description of a new species., Visaya, 1, 6, 9-16
Résumé [+] [-]Angaria turpini sp, nov, from New Caledonia is described and compared with related species. The other New Caledonian species are also listed and briefty discussed
Samadi, Sarah, Bottan, Lionel, Macpherson, Enrique, Richer de Forges, Bertrand, Boisselier, Marie-Catherine, 2006, Seamount endemism questioned by the geographic distribution and population genetic structure of marine invertebrates, Marine Biology, 149, 6, 1463-1475
doi: 10.1007/s00227-006-0306-4 Résumé [+] [-]Previous studies have suggested that the high diversity associated with the Norfolk seamounts (Southwest Pacific) could reflect endemism resulting from limited dispersal due to hydrological phenomena. Crustaceans of the family Galatheidae are thoroughly studied in the New Caledonia economic zone permitting the analysis of species distribution pattern between the New Caledonia slope and Norfolk ridge seamounts. This analysis has shown that, qualitatively, the same species are sampled on seamounts and on the New Caledonia slope. Local endemism was never detected. However, on each seamount, and therefore on a small surface, a very high number of species are usually sampled, suggesting that seamounts are biodiversity hot spots. Then, to evaluate whether the seamounts constitute patches of isolated habitat, we explore the pattern of genetic diversity within several species of crustaceans and gastropods. Analysis of the intra-specific genetic structure using the mitochondrial marker COI reveals that populations of two Galatheidae species (Munida thoe and Munida zebra), polymorphic for this marker, are genetically not structured, both among seamounts and between the seamounts and the island slope. The genetic structure over a similar sampling scheme of two Eumunida species (Chirostylidae, the sister family of Galatheidae) and a planktotrophic gastropod (Sassia remensa) reveals a similar pattern. Population structure is observed only in Nassaria problematica, a non-planktotrophic gastropod with limited larvae dispersal. Thus, the limitation of gene flow between seamounts appears to be observed only for species with limited dispersal abilities. Our results suggest that the Norfolk seamounts rather than functioning as areas of endemism, instead, may be highly productive zones that can support numerous species in small areas.
Vilvens, Claude, Maestrati, Philippe, 2006, New records and three new species of Thysanodonta (Gastropoda: Calliostomatidae: Thysanodontinae) from New Caledonia, Novapex, 7, 1, 1-11
Résumé [+] [-]New records of Thysanodonta from New Caledonia area are listed. Thysanodonta diadema n. sp., T. pileum n. sp. and T. cassis n. sp. are described and compared with similar Thysanodonta species from New Caledonia that are also illustrated. Seven Thysanodonta species are recognised by now in New Caledonia, a eighth species occuring in the neighbouring Chesterfield Islands.
Castro P., 2007, A reappraisal of the family Goneplacidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and revision of the subfamily Goneplacinae, with the description of 10 new genera and 18 new species, Zoosystema, 29, 4, 609-774
Résumé [+] [-]A reappraisal of the taxonomy of the brachyuran crabs belonging to the family Goneplacidae MacLeay, 1838 sensu lato has resulted in the revision of the subfamily Goneplacinae, which combines the subfamilies Goneplacinae MacLeay, 1838 and Carcinoplacinae H. Milne Edwards, 1852. Most of the 66 species of Goneplacinae sensu stricto that are listed herein inhabit relatively deep water and are infrequently collected. The subfamily Goneplacinae sensu stricto now consists of 17 genera of which 10 are being described as new: Carcinoplax H. Milne Edwards, 1852, with 18 species of which four are new; Entricoplax n. gen., monotypic; Exopheticus n. gen., with two species; Goneplacoides n. gen., monotypic; Goneplax Leach, 1814, with four species; Hadroplax n. gen., monotypic; Menoplax n. gen., monotypic; Microgoneplax n. gen., with five species of which four are new; Neogoneplax n. gen., with three species of which two are new; Neommatocarcinus Takeda & Miyake, 1969, monotypic; Notonyx A. Milne-Edwards, 1873, with three species; Ommatocarcinus White, 1852, with four species; Paragoneplax n. gen., monotypic; Psopheticus Wood-Mason, 1892, with four species; Pycnoplax n. gen., with five species of which one is new; Singhaplax Serene & Soh, 1976, with seven species of which four are new; and Thyraplax n. gen., with five species of which three are new. All goneplacine genera are exclusive to the Indo-West Pacific region (plus contiguous temperate areas) except Goneplax, which is so far known mostly from the Atlantic and Mediterranean regions. Four nominal species described by other authors were found to be junior subjective synonyms for other species: Carcinoplax verdensis Rathbun, 1914 and C polita Guinot, 1989 synonymous of C specularis Rathbun, 1914; Goneplax megalops Komatsu & Takeda, 2003 of Goneplacoides marivenae (Komatsu & Takeda, 2003) n. comb.; and Psopheticus insolitus Guinot, 1990 of P stridulans Wood-Mason, 1892.
Fraussen, Koen, Kantor, Yuri I., Hadorn, Roland, 2007, Amiantofusus gen. nov. for Fusus amiantus Dall, 1889 (Mollusca: Gastropoda: Fasciolariidae) with description of a new extensive Indo-West Pacific radiation, Novapex, 8, 3-4, 79-101
Résumé [+] [-]In the present paper we describe the new genus Amiantofusus gen. nov. to accommodate the Atlantic species Fusus amiantus Dall, 1889. The genus belongs to Fasciolariidae and this family is confirmed as distinct from Buccinidae, based on anatomical differences. We add an Indo-West Pacific fauna of seven species described as new to science: miantofusus pacificus sp. nov. (North Fiji Basin, New Caledonia, southern Coral Sea, south West Pacific), A. gloriabundus sp. nov. (North Fiji Basin, Vitiaz Zone), A. sebalis sp. nov. (New Caledonia, Loyalty Islands, Vanuatu), A. candoris sp. nov. (Chesterfield Islands, Fairway), A. maestratii sp. nov. (New Caledonia), A. borbonica sp. nov. (Reunion) and A. cartilago sp. nov. (Mozambique Channel). In addition we add two unnamed species: A. species 1 (North Fiji Basin) and A. species 2 (Vanuatu). Fusus thielei Schepman, 1911 is briefly discussed, the generic placement is still uncertain.
- Lindner, Alverto, 2007, Diversity of stylasterid corals (Cnidaria: Hydrozoa: Stylasteridae) in deep water habitats of New Caledonia, Documents scientifiques et techniques, II7, 137
Lorenz, Felix, 2007, Two new species of Lunovula (Gastropoda: Caenogastropoda: Ovulidae) from New Caledonia and the Solomon Islands., Visaya, 2, 1, 64-69
Résumé [+] [-]Lunovula boucheti n. sp. from New Caledonia is described and compared with L. finleyi Rosenberg, 1990. Lunovula cancellata n. sp. is described from the Solomons and compared with L. superstes Dolin, 1991 and L. venusta Tsuchida & Kurozumi, 1999.
Macpherson, Enrique, 2007, Species of the genus Munidopsis Whiteaves, 1784 from the Indian and Pacific oceans and reestablishment of the genus Galacantha A. Milne-Edwards, 1880 (Crustacea, Decapoda, Galatheidae), Zootaxa, 1417, 1-135
Résumé [+] [-]Sixty-six species of the genus Munidopsis have been studied using specimens collected during numerous French expeditions carried out in the last decades in the deep-waters of the southwest Indian and southwest Pacific Oceans, between 140 and 4400 m. Twenty-five new species are described, and the diagnoses and illustrations of some relatively rare species (M. africana, M. debilis, M. lenzii, M. moresbyi, M. orcina, M. sinclairi, M. stylirostris and M. wardeni) are provided. The reestablishment of the genus Galacantha is proposed, including the descriptions/diagnoses and a key to all species. The genus contains nine species, including three new species (G. bellis, G. diomedeae, G. quiquei n. sp., G. rostrata, G. spinosa, G. subrostrata n. sp., G. subspinosa n. sp., G. trachynotus and G. valdiviae). The number of species collected by station is very small (usually one species), probably related to their low densities. However, in some samples, as many as five species have been found. The highest number of species have been observed in the Banda Sea (Indonesia) and Solomon Islands. The new records of some species greatly extend the previously known distribution range of the species.
Mah, Christopher, 2007, Systematics , phylogeny and historical biogeography of the Pentagonaster clade (Asteroidea: Valvatida: Goniasteridae), Invertebrate Systematics, 21, 4, 311-339
doi: 10.1071/IS06049 Résumé [+] [-]Morphology-based phylogenetic hypotheses developed for living and fossil goniasterid asteroids have provided several unique opportunities to study bathymetric and biogeographic shifts for an ecologically important group of prominent, megafaunal invertebrates. A cladistic analysis of 18 ingroup taxa employing 65 morphological characters resulted in a single most parsimonious tree. The tree supports assignment of the Atlantic Tosia parva (Perrier, 1881) and the Pacific Tosia queenslandensis Livingstone, 1932 to new, separate genera. The phylogenetic tree supports offshore to onshore bathymetric shifts between basal and derived taxa. The phylogeny is also consistent with historical events surrounding the separation of Antarctica from Australia and South Africa. Buterminaster Blake & Zinsmeister, 1988 from the Eocene La Meseta Formation, Antarctic Peninsula, was included in the phylogenetic analysis and is now supported as the only fossil species in the genus Pentagonaster Gray, 1840. Pentagonaster stibarus H. L. Clark, 1914 is separated from synonymy with P. dubeni Gray, 1847 and resurrected as a valid species. The new genus, Akelbaster, gen. nov., shows unusual new structures that resemble cribiform organs, although their function has not been determined. One specific ingroup lineage, including Tosia and Pentagonaster, attains a much larger adult size than those of its sister-taxa, suggesting that Cope’s rule may apply to asteroids within this clade. Pentagonaster and related genera are revised. Descriptions of four new genera and three new species are presented, including: Akelbaster novaecaledoniae, gen. nov., sp. nov., Ryukuaster onnae, gen. nov., sp. nov., Eknomiaster beccae, sp. nov., Pawsonaster parvus, gen. nov., comb. nov. and Anchitosia queenslandensis, gen. nov., comb. nov.
Ng, Peter K.L., Richer de Forges, Bertrand, 2007, A new genus and new species of leucosiid crab from New Caledonia, with a note on the validity of Tanaoa serenei (Richer de Forges, 1983) (Crustacea: Decapoda: Brachyura), Zootaxa, 1662, 15-24
Résumé [+] [-]Randallia serenei Richer de Forges, 1983, is shown to be a distinct species and not a synonym of Tanaoa distinctus (Rathbun, 1894). Two other species currently placed in Randallia, R. granulata Miers, 1886, and R. speciosa Chen, 1989, are also transferred to Tanaoa Galil, 2003. A new genus and new species of leucosiid crab, Galilia narusei, is also described from New Caledonia. While superficially resembling species of Toru Galil, 2003, it differs markedly in its very granular carapace, rounded intestinal tubercles, short male chelipeds and ambulatory legs as well as a gently bent male first pleopod. The nomenclature of Randallia pustulilabris Alcock, 1896, is also discussed, and Ihleorandallia Stevcic, 2005, a nomen nudum, is shown to be a junior synonym of Toru.
Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso, Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura - families Chirostylidae, Galatheidae and Kiwaidae), Zootaxa, 1905, 1-220
Résumé [+] [-]Taxonomic and ecological interest in squat lobsters has grown considerably over the last two decades. A checklist of the 870 current valid species of squat lobsters of the world (families Chirostylidae, Galatheidae and Kiwaidae) is presented. The compilation includes the complete taxonomic synonymy and geographical distribution of each species plus type information (type locality, repository and registration number). The numbers of described species in the world's major ocean basins are summarised.
Baba, Keiji, 2008, TORBENELLA, A REPLACEMENT NAME FOR TORBENIA BABA, 2005 (DECAPODA, GALATHEIDAE) PREOCCUPIED BY TORBENIA LIBERT, 2000 (INSECTA, LEPIDOPTERA, LYCAENIDAE), Crustaceana, 81, 8, 1021-1022
Beu, Alan G., Héros, Virginie, Cowie, Robert H., Bouchet, Philippe, 2008, Recent deep-water Cassidae of the world. A revision of Galeodea, Oocorys, Sconsia, Echinophoria and relatedtaxa, with new genera and species (Mollusca, Gastropoda), Mémoires du Muséum national d'Histoire naturelle, 25, 196, 269-387
Résumé [+] [-]Shell, radular, opercular and external anatomical characters are surveyed in world Recent deep-water Cassidae, leading to the recognition of three subfamilies: Cassinae, Oocorythinae and Phaliinae. All Recent species are revised of Galeodea Link, 1807 (=Galeoocorys Kuroda & Habe, 1957), Microsconsia n. gen. and Sconsia Gray, 1847, all included in subfamily Cassinae; of Oocorys Fischer, 1883 (= Benthodolium Verrill & Smith, 1884, = Hadroocorys Quinn, 1980), Eucorys n. gen. (including Oocorys bartschi Rehder, 1943 and O. barbouri Clench & Aguayo, 1939) and Dalium Dall, 1889, all included in subfamily Oocorythinae; and of Echinophoria Sacco, 1890, included in subfamily Phaliinae. New species named are Galeodea plauta n. sp. (northwestern New Zealand), Microsconsia limpusi n. sp. (southeastern Queensland, Australia), and Oocorys grandis n. sp. (central Indian Ocean, and southeastern Atlantic, off Namibia). Galeodea bituminata (Martin, 1933) (based on a Pliocene fossil from Buton Island, Indonesia) is an earlier name for G. echinophorella Habe, 1961; G. carolimartini Beets, 1943 is another earlier name for G. echinophorella. The name usually accepted for the type species of Sconsia, S. striata (Lamarck, 1816), is a junior secondary homonym of S. striata (J. Sowerby, 1812) and the valid name for this species is S. grayi (A. Adams, 1855). Echinophoria kurodai Abbott, 1968 was based on small specimens of E. wyvillei (Watson, 1886), and E. oschei Mühlhäusser, 1992 was based on Indian Ocean specimens of E. wyvillei. Echinophoria carnosa Kuroda & Habe, 1961 is limited to southern Japan to the Philippine Islands.
Bouchet, Philippe, Petit, Richard E., 2008, New species and new records of southwest Pacific Cancellariidae (Gastropoda), The Nautilus, 122, 1, 1-18
Résumé [+] [-]Fifteen species of Cancellariidae referable to the genera Zeadmete, Admetula, Fusiaphera, Nipponaphera, and Trigonostoma are reported from depths between 200 and 700 m in New Caledonia and other island groups in the southwest Pacific. Twelve are new species: Zeadmete bathyomon new species, Zeadmete physomon new species, Zeadmete bilix new species, Admetula affluens new species, Admetula marshalli new species, Admetula bathynoma new species, Admetula lutea new species, Admetula emarginata new species, Nipponaphera argo new species, Nipponaphera agastor new species, Nipponaphera tuba new species, and Trigonostoma tryblium new species. All the Recent nominal species of Fusiaphera described from localities throughout the Indo-Pacific area Lire considered to be conspecific, the senior name being Fusiaphera macrospira (Adams and Reeve, 1.850), now with ten synonyms. The ranges of Nipponaphera nodosivaricosa (Petuch, 1.979) and Trigonostoma thysthlon Petit and Harasewych, 1987, are extended to the South Pacific.
Cabezas, Patricia, Macpherson, Enrique, Machordom, Annie, 2008, A new genus of squat lobster (Decapoda: Anomura: Galatheidae) from the South West Pacific and Indian Ocean inferred from morphological and molecular evidence, Journal of Crustacean Biology, 28, 1, 68–75
Résumé [+] [-]In a previous phylogenetic analysis of numerous species of the genus Munida and related genera from the West Pacific based on molecular and morphological data, the monophyly of this group with the exception of M. callista was established. Morphologically, M. callista is closely related to M. brucei, M. javieri, M. hystrix and M. plexaura showing morphological differences in the shape of the rostrum, the supraocular spines, and the ridges on the epistome with respect to the genus Munida. Moreover, the analysis of the mitochondrial genes 16S rRNA and COI showed an independent and monophyletic lineage from the genus Munida. Therefore a new genus, Babamunida, is proposed to accommodate these five species, based on morphological characters and molecular data.
Kitahara, Marcelo V., Cairns, Stephen D., 2008, New records of the genus Crispatotrochus (Scleractinia; Caryophylliidae) from New Caledonia, with description of a new species, Zootaxa, 1940, 1, 59–68
Résumé [+] [-]During the expeditions Bathus 4 and Norfolk 2 off New Caledonia, three species pertaining to the genus Crispatotrochus were collected: C. rubescens, C. rugosus, and C. septumdentatus sp. nov. This study presents the new records describing and illustrating all species. Also, citation synonyms, type locality, type material, and distribution are provided. A brief revision of the 13 valid Recent species belonging to this genus (plus C. sp. Cf. C. cornu and C. sp. A) and an identification key are proposed.
Lindner, Alberto, Cairns, Stephen D., Cunningham, Clifford W., 2008, From offshore to onshore: multiple origins of shallow-water corals from deep-sea ancestors, PLoS One, 3, 6, e2429
Résumé [+] [-]Shallow-water tropical reefs and the deep sea represent the two most diverse marine environments. Understanding the origin and diversification of this biodiversity is a major quest in ecology and evolution. The most prominent and wellsupported explanation, articulated since the first explorations of the deep sea, holds that benthic marine fauna originated in shallow, onshore environments, and diversified into deeper waters. In contrast, evidence that groups of marine organisms originated in the deep sea is limited, and the possibility that deep-water taxa have contributed to the formation of shallowwater communities remains untested with phylogenetic methods. Here we show that stylasterid corals (Cnidaria: Hydrozoa: Stylasteridae)—the second most diverse group of hard corals—originated and diversified extensively in the deep sea, and subsequently invaded shallow waters. Our phylogenetic results show that deep-water stylasterid corals have invaded the shallow-water tropics three times, with one additional invasion of the shallow-water temperate zone. Our results also show that anti-predatory innovations arose in the deep sea, but were not involved in the shallow-water invasions.These findings are the first robust evidence that an important group of tropical shallow-water marine animals evolved from deep-water ancestors.
Lozouet, Pierre, Maestrati, Philippe, Héros, Virginie, Cowie, Robert H., Bouchet, Philippe, 2008, A quarter-century of deep-sea malacological exploration in the South and West Pacific: Where do we stand? How far to go?, Mémoires du Muséum national d'Histoire naturelle, 25, 196, 9-40
Résumé [+] [-]The Institut de Recherche pour le Développement (IRD, formerly ORSTOM) and Muséum national d’Histoire naturelle (MNHN) launched in the early 1980s a suite of oceanographic expeditions to sample the deep-water benthos of the tropical South and West Pacific, with emphasis on the 100-1,500 m bathymetric zone. This paper reviews the development of this programme to date. It describes the procedures involved in curating the material collected and the involvement of an international network of taxonomic experts to identify, describe and name the molluscan fauna. So far, 1,028 species of molluscs have been recorded from the New Caledonia Exclusive Economic Zone from depths below 100 m, and 601 of these (58.4%) were new species. An additional 142 new species have been described from other South Pacifi c island groups (Solomon Islands, Vanuatu, Fiji, Wallis and Futuna, Tonga, Marquesas Islands and Austral Islands). However, the hyper-diverse families have essentially remained untouched. Regional differences among island groups are high, and New Caledonia, which has been sampled best, shows several discrete areas of micro-endemism. We speculate that the deep-sea mollusc fauna of New Caledonia may amount to 15-20,000 species, and the corresponding number for the whole South Pacifi c may be in the order of 20-30,000 species.
McLaughlin, Patsy A., Lemaitre, Rafael, 2008, Larvae of two species of Trizocheles (Decapoda: Anomura: Paguroidea: Pylochelidae: Trizochelinae), description of the adult of one, and preliminary implications of development on pylochelid phylogeny, Zootaxa, 1911, 52-68
Résumé [+] [-]The larvae of two species of the pylochelid genus Trizocheles are described from prematurely hatched specimens and compared with earlier described larvae of Pylocheles (Pylocheles) and Pomatocheles. Although all are lecithotrophic and exhibit marked advanced development, differences in the larval morphology among the three genera are profound. Consideration is given to these differences as they relate to development in the entire Paguroidea, and the possible impact they may have on pylochelid phylogeny. As one of the Trizocheles species is undescribed, adults as well as larvae are described and illustrated.
Puillandre, Nicolas, Samadi, Sarah, Boisselier-Dubayle, Marie-Catherine, Sysoev, Alexander, Kantor, Yuri I., Cruaud, C., Couloux, A, Bouchet, Philippe, 2008, Starting to unravel the toxoglossan knot: Molecular phylogeny of the “turrids” (Neogastropoda: Conoidea), Molecular Phylogenetics and Evolution, 47, 3, 1122-1134
doi: 10.1016/j.ympev.2007.11.007 Résumé [+] [-]The superfamily Conoidea is one of the most speciose groups of marine mollusks, with estimates of about 340 recent valid genera and subgenera, and 4000 named living species. Previous classifications were based on shell and anatomical characters, and clades and phylogenetic relationships are far from well assessed. Based on a dataset of ca. 100 terminal taxa belonging to 57 genera, information provided by fragments of one mitochondrial (COI) and three nuclear (28S, 18S and H3) genes is used to infer the first molecular phylogeny of this group. Analyses are performed on each gene independently as well as for a data matrix where all genes are concatenated, using Maximum Likelihood, Maximum Parsimony and Bayesian approaches. Several well-supported clades are defined and are only partly identifiable to currently recognized families and subfamilies. The nested sampling used in our study allows a discussion of the classification at various taxonomical levels, and several genera, subfamilies and families are found polyphyletic.
- Richer de Forges, Bertrand, Ng, Peter K.L., 2008, New records of deep-sea spider crabs of the genus Cyrtomaia Miers, 1886, from the Pacific Ocean, with description of a new species (Crustacea: Decapoda: Brachyura: Majidae), Zootaxa, 1861, 17-28
Saito, Tomomi, Komai, Tomoyuki, 2008, A review of species of the genera Spongicola de Haan, 1844 and Paraspongicola de Saint Laurent & Cleva, 1981 (Crustacea, Decapoda, Stenopodidea, Spongicolidae), Zoosystema, 30, 1, 87-147
Résumé [+] [-]A review of species of the deep-sea sponge-associated shrimp genera Spongicola de Haan, 1844 and Paraspongicola de Saint Laurent & Cleva, 1981 (Decapoda, Stenopodidea) is presented on the basis of rich collections made by French expeditions in the Indo-West Pacific, supplemented by collections preserved in various institutions in the world. Seven species are recognized in Spongicola, of which three are new to science: S. venustus de Haan, 1844, S. andamanicus Alcock, 1901, S. levigatus Hayashi & Ogawa, 1987, S. parvispinus Zarenkov, 1990, S. depressus n. sp. from Loyalty Islands, S. goyi n. sp. from Japan, Indonesia, New Caledonia and Vanuatu, and S. robustus n. sp. from Mauritius and Mozambique. Subspecific division of S. andamanicus Alcock, 190 1, proposed by de Saint Laurenr & Cleva (198 1), is abandoned, since our morphological analysis strongly suggests that the division does not reflect a population structure of the species; S. holthuisi de Saint Laurent & Cleva, 198 1, is also reduced to a junior synonym of S. andamanicus. Two species are recognized in Paraspongicola, both previously described, viz. P. pusillus de Saint Laurent & Cleva, 1981 and P. inflatus (de saint Laurent & Cleva, 198 1) n. comb., of which the latter is here transferred from Spongicola. Keys in aid for identification are provided for each genus. Geographic and bathymetric distributions of species are briefly discussed. Association with host sponges was verified for some species.
Bitner, Maria Aleksandra, 2009, Recent Brachiopoda from the Norfolk Ridge, New Caledonia, with description of four new species, Zootaxa, 2235, 1–39
Résumé [+] [-]Twenty-two brachiopod species belonging to 19 genera have been recognized in the material collected during two cruises, Norfolk 1 and Norfolk 2, to the Norfolk Ridge south of New Caledonia, at depths of 180 to 1150 m. Thirteen species are reported for the first time from this locality, while four genera, Aulites, Septicollarina, Annuloplatidia and Campages, are noted for the first time from the New Caledonian region. Thecidellina minuta is recorded for the first time from the Pacific. Four new species are described - Cryptopora norfolkensis sp. nov., Aulites crosnieri sp. nov., Septicollarina zezinae sp. nov. and Annuloplatidia richeri sp. nov. The distribution of the particular species and their abundance vary considerably between the 15 sampled seamounts, with Stenosarina crosnieri and Fallax neocaledonensis being most widely distributed, and the seamount Crypthelia having the highest biodiversity. The seamount brachiopods show considerable affinity to the brachiopods of adjacent regions, and only three species - C. norfolkensis, A. crosnieri and A. richeri - can be regarded as potential endemics. The brachiopod fauna is more similar to that in the area around Fiji than to that around Australasia.
Kitahara, Marcelo V., Cairns, Stephen D., 2009, A revision of the genus Deltocyathus Milne Edwards & Haime, 1848 (Scleractinia, Caryophylliidae) from New Caledonia, with the description of a new species, Zoosystema, 31, 2, 233–248
Résumé [+] [-]Based on part of the material collected during the HALIPRO 1, BATHUS 3, BATHUS 4, and NORFOLK 2 expeditions by the Muséum national d’Histoire naturelle, Paris off New Caledonia, 10 species of scleractinian corals belonging to the genus Deltocyathus were identified: D. magnifi cus, D. rotulus, D. suluensis, D. vaughani, D. ornatus, D. heteroclitus, D. corrugatus, D. crassiseptum, D. cameratus and D. inusitatus n. sp. These 10 species are fully described and illustrated, their distributional and bathymetric ranges are given. A brief history and an identification key for all species belonging to this genus are provided.
- Lorenz, Felix, Fehse, Dirk, 2009, The living Ovulidae: a manual of the families of allied cowries: Ovulidae, Pediculariidae and Eocypraeidae., 651
McLaughlin, Patsy A., Lemaitre, Rafael, 2009, A new classification for the Pylochelidae (Decapoda: Anomura: Paguroidea) and descriptions of new taxa, The Raffles Bulletin of Zoology, suppl. 20, 159-231
Résumé [+] [-]A new classification is presented based on the results of the recently completed cladistic analysis of the Pylochelidae. The subfamilies Pylochelinae and Pomatochelinae are retained, the latter with the genera Pylocheles and Cheiroplatea; however, the subgenera Xylocheles and Bathycheles are elevated to generic rank together with the nominal subgenus Pylocheles. In addition, one new species, B. phenax, is described in Bathycheles and B. profundus is shown to be conspecific with B. integer. The subfamilies Parapylochelinae, Cancellochelinae, Trizochelinae, and Mixtopagurinae are reduced to ranks of tribes and included in the subfamily Trizochelinae. A new genus Forestocheles is proposed in the tribe Trizochelini. Within the genus Trizocheles, subspecific rank for T. spinosus bathamae is deemed unjustified and this taxon is placed in synonymy with the nominal subspecies T spinosus spinosus. The correct identity of Trizocheles balssi is established and the species mistakenly thought to represent that taxon is described as T. hoensonae, new species. Trizocheles gracilis is found to be conspecific with T. boasi and an additional new species, T. mendanai, is added to the genus. The superfamilial ranks of Cheiroplateoidea, Pomatocheloidea, Pylocheloidea, and Cancellocheloidea proposed by Watabe (2007) are rejected, as is Birgusoidea.
Puillandre, Nicolas, Samadi, Sarah, Boisselier-Dubayle, Marie-Catherine, Cruaud, Corinne, Bouchet, Philippe, 2009, Molecular data provide new insights on the phylogeny of the Conoidea (Neogastropoda), Nautilus, 123, 3, 202-210
Résumé [+] [-]The superfamily Conoidea is one of the most speciose groups of marine molluses, with almost 700 genera and 10,000 living species. Previous classifications were based on morphological and anatomical characters, but clades and phylogenetic relationships were not well assessed. Information provided by one mitochondrial (COI) and three nuclear (28S, 18S, and H3) genes were used to infer the phylogeny of this group. Data were obtained from more than 100 specimens, belonging to 54 genera, collected during recent cruises in the western Pacific (Philippines, Vanuatu, Norfolk Ridge, and Chesterfield and Solomon Islands). Analyses were performed on each gene independently as well as for a data matrix where all genes were concatenated, using several methods (ML, Parsimony, Bayesian). Some families and subfamilies among Conoidea correspond to well-supported clades uniformly recovered with all genes and all methods, but others appear to be polyphyletic. Several bathyal and abyssal genera are also shown to he polyphyletic. Our results also point out some new phylogenetic relationships at the family, subfamily, and genus levels.
Richer de Forges, Bertrand, Ng, Peter K.L., 2009, On the Majoid genera Oxypleurodon Miers, 1886, and Sphenocarcinus A. Milne-Edwards, 1875 (Crustacea: Brachyura: Epialtidae), with descriptions of two new genera and five new species, The Raffles Bulletin of Zoology, suppl. 20, 247-266
Résumé [+] [-]On the basis of fresh collections from various parts of the western Pacific, three species of majoid crabs previously considered as rare are redescribed and figured: Oxypleurodon bidens (Sakai, 1969), O. auritum (Rathbun, 1916) and O. coralliophilum (Takeda, 1980). Four new species are described: O. boholense from the Philippines, O. barazeri and O. parallelum front the Solomon Islands, and O. alaini from New Caledonia. A new genus and new species, Stegopleurodon planirostrum, is described from New Caledonia and Vanuatu. The two species currently assigned to the allied American genus Sphenocarcinus A. Milne-Edwards, 1875, are re-examined, and a new genus, Rhinocarcinus. is established for the Pacific species Sphenocarcinus agassizi Rathbun, 1893.
Vilvens, Claude, 2009, New species and new records of Calliostomatidae (Gastropoda: Trochoidea) from New Caledonia and Solomon Islands, Novapex, 10, 4, 125-163
Résumé [+] [-]New records of 16 known Calliostomatidae species from New Caledonia and Solomon Islands area are listed, extending the distribution area of some of them. Seven new species are described and compared with similar species: Calliostoma (Calliostoma) cochlias n. sp., C. (Fautor) aprosceptum n. sp., C. (F.) diaphoros n. sp., C. (Benthastelena) hexalyssion n. sp., C. (B.) malaita n. sp., C. (Ampullotrochus) tropis n. sp., C. (A.) aporia n. sp. A list of the Calliostomatidae of the Indo-Pacific area is provided with their distribution.
Alf, Axel, Maestrati, Philippe, Bouchet, Philippe, 2010, New species of Bolma (Gastropoda: Vetigastropoda: Turbinidae) from the tropical deep sea., The Nautilus, 124, 2, 93-99
Résumé [+] [-]Five new species of Bolma are described, three from New Caledonia, one from Mozambique and one from French Polynesia, all from deep reef (75-155 m) to bathyal (230-580 m) depths. Four of the new species have been sequenced, and their holotypes are also voucher specimens for COl sequences, thus contributing to a new generation of name-bealing types. The descriptions and names are provided in advance of a forthcoming shell-based revision of the genus Bolma, and in advance of a detailed molecular- and morphology-based study of Bolma in New Caledonian waters.
Barco, A., Claremont, Martine, Reid, David G., Houart, Roland, Bouchet, Philippe, Williams, S.T., Cruaud, Corinne, Couloux, Arnaud, OLIVERIO, M., 2010, A molecular phylogenetic framework for the Muricidae, a diverse family of carnivorous gastropods, Molecular Phylogenetics and Evolution, 56, 3, 1025-1039
doi: 10.1016/j.ympev.2010.03.008 Résumé [+] [-]With over 1600 extant described species, the Muricidae are one of the most species-rich and morphologically diverse families of molluscs. As predators of molluscs, polychaetes, anthozoans barnacles and other invertebrates, they form an important component of many benthic communities. Traditionally, the classification of muricids at specific and generic levels has been based primarily on shells, while subfamilies have been defined largely by radular morphology, although the composition and relationships of suprageneric groups have never been studied exhaustively. Here we present the phylogenetic relationships of 77 muricid species belonging to nine of the ten currently recognized subfamilies, based on Bayesian inference and Maximum Likelihood analyses of partial sequences of three mitochondrial (12S, 16S and COI) and one nuclear (28S) genes. The resulting topologies are discussed with respect to traditional subfamilial arrangements, and previous anatomical and molecular findings. We confirm monophyly of each of the subfamilies Ergalataxinae, Rapaninae, Coralliophilinae, Haustrinae, Ocenebrinae and Typhinae as previously defined, but earlier concepts of Muricinae, Trophoninae and Muricopsinae are shown to be polyphyletic. Based on our phylogenetic hypothesis, a new arrangement of these subfamilies is proposed.
Cabezas, Patricia, Macpherson, Enrique, Machordom, Annie, 2010, Taxonomic revision of the genus Paramunida Baba, 1988 (Crustacea: Decapoda: Galatheidae): a morphological and molecular approach., Zootaxa, 2712, 1-60
Résumé [+] [-]The genus Paramunida belongs to the family Galatheidae, one of the most species rich families among anomuran decapod crustaceans. In spite of the genus has received substantial taxonomic attention, subtle morphological variations observed in numerous samples suggest the existence of undescribed species. The examination of many specimens collected during recent expeditions and morphological and molecular comparisons with previously described species have revelaled the existence of eleven new lineages. All of them are distinguished by subtle and constant morphological differences, which are in agreement with molecular divergences reported for the mitochondrial markers ND1 and 16S rRNA. Here, we describe and illustrate the new species, providing brief redescriptions for the previously known species, and a dichotomous identification key for all species in the genus.
Castelin, Magalie, Lambourdiere, Josie, Boisselier, Marie-Catherine, Lozouet, Pierre, Couloux, Arnaud, Cruaud, Corinne, Samadi, Sarah, 2010, Hidden diversity and endemism on seamounts: focus on poorly dispersive neogastropods, Biological Journal of the Linnean Society, 100, 2, 420–438
Résumé [+] [-]The seamounts chain offers a set of fragmented habitats in which species with poor dispersive ability may undergo divergence in allopatry. Such a scenario may explain the endemism often described on seamounts. In gastropods, it is possible to infer the mode of development of a species from the morphology of its larval shell. Accordingly, we examine the population genetics of several caenogastropods from the Norfolk and Lord Howe seamounts (south-west Pacific) with contrasting modes of larval development. A prerequisite to our study was to clarify the taxonomic framework. The species delimitation was ruled using an integrative approach, based on both morphological and molecular evidence. Molecular data indicate an unexpected taxonomic diversity within the existing species names. Both the clarification of the taxonomic framework and the importance of the sampling effort allow us to confidently detect cryptic diversity and micro-endemism. These results are discussed in relation to the dispersive capacities of the organisms. (C) 2010 The Linnean Society of London, Biological Journal of the Linnean Society, 2010, 100, 420-438.
Castro, Peter, Ng, Peter K.L., 2010, Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea), Zootaxa, 2375, 1-130
Résumé [+] [-]The family Euryplacidae Stimpson, 1871, traditionally included in the Goneplacidae MacLeay, 1838, is revised based on the examination of the type material of many of its species as well as unidentified and previously identified material from around the world. The revised family now consists of 31 species (including five that are described as new) belonging to 13 genera (including four that are described as new): Eucrate De Haan, 1835, with eight species, of which one is new; Euryplax Stimpson, 1859, with two species; Frevillea A. Milne-Edwards, 1880, with three species; Henicoplax n. gen., with five species of which three are new; Heteroplax Stimpson, 1858, monotypic; Machaerus Leach, 1818, with two species; Nancyplax Lemaitre, Garcia-Gomez, von Sternberg & Campos, 2001, monotypic; Platyozius Borradaile, 1902, monotypic; Psopheticoides Sakai, 1969, monotypic; Systroplax n. gen., monotypic; Trissoplax n. gen., with two species, of which one is new; Trizocarcinus Rathbun, 1914, with two species; Villoplax n. gen., monotypic; and Xenocrate Ng & Castro, 2007, monotypic. The genus Platyozius and Eucrate formosensis Sakai, 1974, are removed from the synonymy of Eucrate and E. alcocki Serene, in Serene & Lohavanijaya, 1973, respectively. Neotypes are selected for Heteroplax dentata Stimpson, 1858, and Pilumnoplax sulcatifrons Stimpson, 1858, two species described from Hong Kong that have a confusing taxonomic history. A neotype is also selected for Euryplax nitida Stimpson, 1859, described from the Florida Keys. Seven nominal species described by other authors were found to be junior subjective synonyms for other species: Eucrate affinis Haswell, 1882, E. costata Yang & Sun 1979, E. haswelli Campbell 1969, and Pseudorhombila sulcatifrons var. australiensis Miers, 1884, of Trissoplax dentata (Stimpson, 1858); Galene laevimanus (Lucas, in Jacquinot & Lucas, 1853) of Eucrate dorsalis (White, 1849); Heteroplax nagasakiensis Sakai, 1934, of H. transversa Stimpson, 1858; and Pilumnoplax sulcatifrons Stimpson, 1858, of Eucrate crenata (De Haan, 1835). Eight euryplacid genera are exclusively found in the Indo-West Pacific region (except one species introduced in the Mediterranean), one is exclusive to each the Eastern Atlantic and Tropical Eastern Pacific regions, three to the Western Atlantic region, and one genus has both Western Atlantic and Tropical Eastern Pacific species.
Ho, Hsuang-Ching, Shao, Kwang-Tsao, 2010, A new species of Chaunax (Lophiiformes: Chaunacidae) from the western South Pacific, with comment on C. latipunctatus, Zootaxa, 2445, 53–61
Résumé [+] [-]A new species of anglerfish, Chaunax nudiventer, is described on the basis of 35 specimens from the western South Pacific Ocean. It is characterized by large spots on the dorsal surface; a largely naked area on abdomen; a relatively short head and long tail, both reflected in the elongated body; slender and simple spines on body surface; numerous broad flaps on lateral side of body; and higher number of lateral line neuromasts: mainly 41–43 in lateral line proper, 4 in the upper peropercular series, and 16–17 in the pectoral series. Comments on a similar species, C. latipunctatus from the eastern South Pacific Ocean, is provided.
Kitahara, Marcelo V., Cairns, Stephen D., Stolarski, Jarosław, Blair, David, Miller, David J., DeSalle, Robert, 2010, A Comprehensive Phylogenetic Analysis of the Scleractinia (Cnidaria, Anthozoa) Based on Mitochondrial CO1 Sequence Data, PLoS ONE, 5, 7, e11490
doi: 10.1371/journal.pone.0011490 Résumé [+] [-]Classical morphological taxonomy places the approximately 1400 recognized species of Scleractinia (hard corals) into 27 families, but many aspects of coral evolution remain unclear despite the application of molecular phylogenetic methods. In part, this may be a consequence of such studies focusing on the reef-building (shallow water and zooxanthellate) Scleractinia, and largely ignoring the large number of deep-sea species. To better understand broad patterns of coral evolution, we generated molecular data for a broad and representative range of deep sea scleractinians collected off New Caledonia and Australia during the last decade, and conducted the most comprehensive molecular phylogenetic analysis to date of the order Scleractinia. Methodology: Partial (595 bp) sequences of the mitochondrial cytochrome oxidase subunit 1 (CO1) gene were determined for 65 deep-sea (azooxanthellate) scleractinians and 11 shallow-water species. These new data were aligned with 158 published sequences, generating a 234 taxon dataset representing 25 of the 27 currently recognized scleractinian families. Principal Findings/Conclusions: There was a striking discrepancy between the taxonomic validity of coral families consisting predominantly of deep-sea or shallow-water species. Most families composed predominantly of deep-sea azooxanthellate species were monophyletic in both maximum likelihood and Bayesian analyses but, by contrast (and consistent with previous studies), most families composed predominantly of shallow-water zooxanthellate taxa were polyphyletic, although Acroporidae, Poritidae, Pocilloporidae, and Fungiidae were exceptions to this general pattern. One factor contributing to this inconsistency may be the greater environmental stability of deep-sea environments, effectively removing taxonomic "noise'' contributed by phenotypic plasticity. Our phylogenetic analyses imply that the most basal extant scleractinians are azooxanthellate solitary corals from deep-water, their divergence predating that of the robust and complex corals. Deep-sea corals are likely to be critical to understanding anthozoan evolution and the origins of the Scleractinia.
Kitahara, Marcelo V., Cairns, Stephen D., Miller, David J., 2010, Monophyletic origin of Caryophyllia (Scleractinia, Caryophylliidae), with descriptions of six new species, Systematics and Biodiversity, 8, 1, 91-118
doi: 10.1080/14772000903571088 Résumé [+] [-]The genus Caryophyllia Lamarck, 1816 is the most diverse genus within the azooxanthellate Scleractinia comprising 66 Recent species and a purported 195 nominal fossil species. Examination of part of the deep-sea scleractinian collection made by the Paris Museum off New Caledonia and part of the material collected by CSIRO off Australian waters revealed the occurrence of 23 species of Caryophyllia, of which six are new to science. All new records, including the new species, are described, and synonyms, distribution, type locality, type material and illustration are provided for each species. An identification key to all Recent species of Caryophyllia is presented. In addition, the validity of the genus Caryophyllia was investigated by phylogenetic analyses of a dataset consisting of partial mitochondrial 16S rRNA sequences from 12 species assigned to this genus together with seven species representing some of the most morphologically similar caryophylliid genera, and 14 non-caryophyllid species representing 14 scleractinian families. Irrespective of the method of analysis employed, all of the Caryophyllia species formed a well-supported clade together with Dasmosmilia lymani and Crispatotrochus rugosus. Although based on a subset of the Recent Caryophyllia species, these results are consistent with Caryophyllia being a valid genus, but call for a reexamination of Dasmosmilia and Crispatotrochus.
Macpherson, Enrique, Richer de Forges, Bertrand, Schnabel, Kareen, Samadi, Sarah, Boisselier, Marie-Catherine, Garcia-Rubies, Antoni, 2010, Biogeography of the deep-sea galatheid squat lobsters of the Pacific Ocean, Deep Sea Research Part I: Oceanographic Research Papers, 57, 2, 228-238
doi: 10.1016/j.dsr.2009.11.002 Résumé [+] [-]We analyzed the distribution patterns of the galatheid squat lobsters (Crustacea, Decapoda, Galatheidae) of the Pacific Ocean. We used the presence/absence data of 402 species along the continental slope and continental rise (200-2000 m) obtained from 54 cruises carried out in areas around the Philippines, Indonesia, Solomon, Vanuatu, New Caledonia, Fiji, Tonga, Wallis and Futuna and French Polynesia. The total number of stations was ca. 3200. We also used published data from other expeditions carried out in the Pacific waters, and from an exhaustive search of ca. 600 papers on the taxonomy and biogeography of Pacific species. We studied the existence of biogeographic provinces using multivariate analyses, and present data on latitudinal and longitudinal patterns of species richness, rate of endemism and the relationship between body sizes with the size of the geographic ranges. Latitudinal species richness along the Western and Eastern Pacific exhibited an increase from higher latitudes towards the Equator. Longitudinal species richness decreased considerably from the Western to the Central Pacific. Size frequency distribution for body size was strongly shifted toward small sizes and endemic species were significantly smaller than non-endemics. This study concludes that a clear separation exists between the moderately poor galatheid fauna of the Eastern Pacific and the rich Western and Central Pacific faunas. Our results also show that the highest numbers of squat lobsters are found in the Coral Sea (Solomon-Vanuatu-New Caledonia islands) and Indo-Malay-Philippines archipelago (IMPA). The distribution of endemism along the Pacific Ocean indicates that there are several major centres of diversity, e.g. Coral Sea, IMPA, New Zealand and French Polynesia. The high proportion of endemism in these areas suggests that they have evolved independently. (C) 2009 Elsevier Ltd. All rights reserved.
- Macpherson E., Baba K., 2010, Revision of the genus Sadayoshia (Anomura, Galatheidae), with description of four new species, Studies on Malacostraca, 14, 415-452
Mapes, Royal H., Landman, Neil H., Cochran, Kirk, Goiran, Claire, Richer de Forges, Bertrand, Renfro, Alisha, 2010, EARLY TAPHONOMY AND SIGNIFICANCE OF NATURALLY SUBMERGED NAUTILUS SHELLS FROM THE NEW CALEDONIA REGION, PALAIOS, 25, 9, 597-610
doi: 10.2110/palo.2009.p09-109r Résumé [+] [-]The discovery of 11 Nautilus macromphalus shells in marine environments near New Caledonia constitutes the first opportunity for taphonomic analysis of empty shells of unburied, externally shelled cephalopods on the seafloor. Radiometric dating indicates specimen ages range from 14 to 42 years. These modern specimens provide a unique opportunity to examine the early, preburial taphonomy of this group of animals including shell condition, radiometric-age dating, epizoan encrustation, color degradation, and sediment infilling. The following conclusions are made: (1) given the limited sample available for study and assuming equal conditions where shells rested on the seafloor, the length of time the shell is unburied will not control the degree of epizoan encrustation or the external shell appearance; (2) shell boring is a major destructive process that probably impacts the potential of the shells to become fossilized; and (3) shells in the photic zone are impacted differently than those dredged from a deep water environment below the photic zone. A major part of this difference is probably the result of both boring and encrusting organisms, especially algae. By comparison, fossil cephalopods as a general group can be expected to vary considerably from the modern specimens because of evolutionary patterns of associated organisms, geographic distribution, and different environments with different paleoecological parameters through time. Caution in overreliance on the taphonomy of these modern shells should be exercised because of the limited sample of Nautilus specimens recovered. The need for additional taphonomic studies of modern externally shelled cephalopods with the recovery of more specimens from the marine environment is highly desirable.
Puillandre N., Cruaud C., Kantor Y., 2010, Cryptic species in Gemmuloborsonia (Gastropoda: Conoidea), Journal of Molluscan Studies, 76, 1, 11-23
doi: 10.1093/mollus/eyp042 Résumé [+] [-]During a broad molecular taxonomic and phylogenetic survey of the gastropod superfamily Conoidea, 80 specimens of several species of the genus Gemmuloborsonia were sequenced for the cytochrome c oxidase subunit I gene. The genus, originally established for fossil species from the Plio-Pleistocene of the Philippines, now includes living species from bathyal depths of the Indo-Pacific Oceans. The molecular data demonstrated the presence of five separate entities, while only four ‘morphospecies’ could be isolated by visual examination. The two largest groups, representing separate species from the molecular data, were impossible to distinguish with certainty using shell or anatomical characters. To examine shell morphology in more detail the shape of the last whorl was analysed by Fourier analysis, and the Fourier coordinates were used in canonical variate analysis. The majority of the specimens were separated into two groups, but 21.6% of the specimens were impossible to distinguish by morphological characters. One of these two forms was attributed to the known species Gemmuloborsonia moosai Sysoev & Bouchet, 1996, while the other is described as a new species Gemmuloborsonia clandestina. Bathytoma colorata Sysoev & Bouchet, 2001 is transferred to Gemmuloborsonia on the basis of molecular analysis and radular morphology. Another species, represented in our material by a single specimen, remains undescribed.
- Samadi, Sarah, Laure, CORBARI, Lorion, Julien, Hourdez, Stéphanie, Haga, Takuma, Dupont, Joëlle, Boisselier, Marie-Catherine, Richer de Forges, Bertrand, 2010, Biodiversity of deep-sea organismes associated with sunken-wood ot other organic remains sampled in the tropical Indo-pacific, Cahiers de Biologie Marine, 51, 459-466
Bamber, Roger N., 2011, The male of Ascorhynchus constrictus Stock, 1997 (Arthropoda: Pycnogonida), with further new records of deep-sea pycnogonids from New Caledonia, the Solomon Islands and Vanuatu, Zootaxa, 2787, 55-67
Résumé [+] [-]Deep-sea pycnogonid material collected during the N/O Alis Campagnes Norfolk 2 to New Caledonia in 2003 and Salomon 2 to the Solomon Islands in 2004, together with two samples from the BOA0 and BOA1 Campagnes to Vanuatu in 2004-2005, has been analyzed. This includes only the second collection of deep-sea pycnogonids from the Solomon Islands. The material includes 22 specimens from seven species from New Caledonia, taken at depths from 265 to 1150 m, 95 specimens from 14 species from the Solomon islands, at depths from 336 to 1218 m, and two specimens of one species from Vanuatu (864-927 m depth). The first male of Ascorhynchus constrictus is described, including the first description of the anterior legs. A new species of Ascorhynchus is partially described, but not named owing to its incompleteness. Seven of the species are new to the Melanesia region, including a notable range-extension for Colossendeis tasmanica. The local zoogeography of these deep-water species is discussed.
Bitner, Maria Aleksandra, 2011, Xenobrochus norfolkensis (Brachiopoda: Dyscoliidae), a new species from the Norfolk Ridge, New Caledonia, South-West Pacific, Carnets de Géologie/Notebooks on Geology, 5, 203–211
Résumé [+] [-]The genus Xenobrochus, with the type species Gryphus africanus COOPER, 1973, was erected for short-looped brachiopods of small size, rectimarginate and having a loop with anteriorly convex transverse band. A new species of Xenobrochus, X. norfolkensis sp. nov. has been identified in the material collected during the French cruises SMIB 8, NORFOLK 1 and NORFOLK 2 to the Norfolk Ridge, New Caledonia, SW Pacific. This species differs from those hitherto described in the absence of cardinal process and relatively wide outer hinge plates. The genus, represented now by nine species, has a distribution restricted to the Indian Ocean and West Pacific.
Borsa, Philippe, Akimoto, Seiji, Pasco, Aude, Tehei, Manina, Watabe, Shugo, 2011, Identification des deux espèces jumelles Beryx mollis Abe 1959 et B. splendens Lowe 1834, à l'aide de caractères morphologiques et méristiques simples, Rapport d'opération ZoNéCo, 31
Résumé [+] [-]Two sibling species, Beryx mollis and B. splendens, are potentially the main fish species of commercial interest for a bottom-line fishery in the deep waters of New Caledonia’s EEZ. Two datasets, morphological and meristic (one from Japan, the other one from New Caledonia) were obtained from specimen samples of the two species, which were species-identified by either the number of pyloric caeca (which allows total discrimination of the two species), or DNA markers, or a posteriori by the outcome of principal component analysis (PCA). Four morphological variables were measured (body height, head length, snout length, orbit diameter) and transformed to take standard length into account. None of these morphological variables, either single or combined to another, allowed sufficient discrimination between the two species. PCA on the four morphological variables led to a slightly better result, but still insufficient. Six meristic variables were utilized (numbers of soft rays in the dorsal, pectoral, pelvic, and anal fins, number of branchiospines on the lower half of the first branchial arch, number of scales on the lateral line). All these variables except the number of scales on the lateral line, proved useful to statistically distinguish the two species. However, none was diagnostic when taken separately from the other variables and the combination of two variables was only slightly better for this purpose. Canonical discriminant analysis helped determine which meristic characters could be used in priority to identify individuals: these were the numbers of soft rays on the dorsal, pectoral, and pelvic fins, and the number of branchiospines. In practice, if the fish is disembowelled or filetted, it takes only counting the number of pyloric caec for identification to species. If the fish is preserved whole before being marketed, then we recommend to count the numbers of soft rays on the dorsal, pectoral, and pelvic fins for a reasonably reliable identification.
Bouchet, Philippe, Kantor, Yuri I., Sysoev, Alexander V., Puillandre, Nicolas, 2011, A new operational classification of the Conoidea (Gastropoda), Journal of Molluscan Studies, 77, 3, 273-308
doi: 10.1093/mollus/eyr017 Résumé [+] [-]A new genus-level classification of the Conoidea is presented, based on the molecular phylogeny of Puillandre et al. in the accompanying paper. Fifteen lineages are recognized and ranked as families to facilitate continuity in the treatment of the names Conidae (for 'cones') and Terebridae in their traditional usage. The hitherto polyphyletic 'Turridae' is now resolved as 13 monophyletic families, in which the 358 currently recognized genera and subgenera are placed, or tentatively allocated: Conorbidae (2 (sub) genera), Borsoniidae (34), Clathurellidae (21), Mitromorphidae (8), Mangeliidae (60), Raphitomidae (71), Cochlespiridae (9), Drilliidae (34), Pseudomelatomidae (=Crassispiridae) (59), Clavatulidae (14), Horaiclavidae new family (28), Turridae s. s. (16) and Strictispiridae (2). A diagnosis with description of the shell and radulae is provided for each of these families.
Castelin, Magalie, Puillandre, Nicolas, Lozouet, Pierre, Sysoev, Alexander, Richer de Forges, Bertrand, Samadi, Sarah, 2011, Molluskan species richness and endemism on New Caledonian seamounts: Are they enhanced compared to adjacent slopes?, Deep Sea Research Part I: Oceanographic Research Papers, 58, 6, 637-646
doi: 10.1016/j.dsr.2011.03.008 Résumé [+] [-]Seamounts were often considered as‘hotspots of diversity’ and ‘centers of endemism’,but recently this opinion has been challenged. After 25 years of exploration and the work of numerous taxonomists, the Norfolk Ridge (Southwest Pacific) is probably one of the best-studied seamount chains worldwide. However,even in this intensively explored area, the richness and the geographic patterns of diversity are still poorly characterized. Among the benthic organisms,the post-mortem remains of mollusks can supplement live records to comprehensively document geographical distrbutions. Moreover, the accretionary growth of mollusk shells informs us about the lifes pan of the pelagic larva.To compare diversity and level of endemism between the Norfolk Ridge seamounts and the continental slopes of New Caledonia we used species occurrence data drawn from (i) the taxonomic literature on mollusks and (ii) a raw dataset of mainly undescribed deep-sea species of the hyperdiverse Turridae. Patterns of endemism and species richness were analyzed through quantitative indices of endemism and species richness estimates or metrics.To date, 403 gastropods and bivalves species have been recorded on the Norfolk Ridge seamounts. Of these, at least 38 species(10%) are potentially endemic to the seamounts and nearly all of 38 species have protoconchs indicating lecithotrophic larval development. Overall, our results suggest that estimates of species richness and endemism ,when sampling effort is taken into account, were not significantly different between slopes and seamounts. By including in our analyses 347 undescribed morphospecies from the Norfolk Ridge, our results also demonstratet he influence of taxonomic bias on our estimates of species richness and endemism.
Ho, H.-C., Séret, B., Shao, K.-T., 2011, Records of anglerfishes (Lophiiformes: Lophiidae) from the western South Pacific Ocean, with descriptions of two new species, Journal of Fish Biology, 79, 7, 1722-1745
Modica, Maria Vittoria, Bouchet, Philippe, Cruaud, Corinne, Utge, José, Oliverio, Marco, 2011, Molecular phylogeny of the nutmeg shells (Neogastropoda, Cancellariidae), Molecular Phylogenetics and Evolution, 59, 3, 685-697
doi: 10.1016/j.ympev.2011.03.022 Résumé [+] [-]Cancellariidae, or nutmeg shells, is a family of marine gastropods that feed on the body fluids and the egg cases of marine animals. The 300 or so living species are distributed worldwide, mostly on soft bottoms, from intertidal to depths of about 1000 m. Although they are a key group for the understanding of neogastropod evolution, they are still poorly known in terms of anatomy, ecology and systematics. This paper reports the first mitochondrial multi-gene phylogenetic hypothesis for the group. Data were collected for 50 morphospecies, representative of 22 genera belonging to the three currently recognized subfamilies. Sequences from three genes (12S, 16S and COI) were analyzed with Maximum Likelihood analysis and Bayesian Inference, both as single gene datasets and in two partitioned concatenated alignment. Largely consistent topologies were obtained and discussed with respect to the traditional subfamilial arrangements. The obtained phylogenetic trees were also used to produce Robinson-Foulds supertrees. Our results confirmed the monophyly of the subfamily Plesiotritoninae, while Admetinae and Cancellariinae, as currently conceived, were retrieved as polyphyletic. Based on our findings we propose changes to the systematic arrangement of these subfamilies. At a lower taxonomic rank, our results highlighted the rampant homoplasy of many characters traditionally used to segregate genera, and thus the need of a critical re-evaluation of the contents of many genera (e.g. Nipponaphera, Merica, Sydaphera, Bivetia), the monophyly of which was not recovered.
Puillandre, Nicolas, Macpherson, Enrique, Lambourdière, Josie, Cruaud, Corinne, Boisselier-Dubayle, Marie-Catherine, Samadi, Sarah, 2011, Barcoding type specimens helps to identify synonyms and an unnamed new species in Eumunida Smith, 1883 (Decapoda: Eumunididae), Invertebrate Systematics, 25, 4, 322-333
doi: 10.1071/IS11022 Résumé [+] [-]The primary purpose of DNA-barcoding projects is to generate an efficient expertise and identification tool. This is an important challenge to the taxonomy of the 21st century, as the demand increases and the expert capacity does not. However, identifying specimens using DNA-barcodes requires a preliminary analysis to relate molecular clusters to available scientific names. Through a case study of the genus Eumunida (Decapoda : Eumunididae), we illustrate how naming molecule-based units, and thus providing an accurate DNA-based identification tool, is facilitated by sequencing type specimens. Using both morphological and unlinked molecular markers (COI and 28S genes), we analysed 230 specimens from 12 geographic areas, covering two-thirds of the known diversity of the genus, including type specimens of 13 species. Most hypotheses of species delimitation are validated, as they correspond to molecular units linked to only one taxonomic name (and vice versa). However, a putative cryptic species is also revealed and three entities previously named as distinct species may in fact belong to a single one, and thus need to be synonymised. Our analyses, which integrate the current naming rules, enhance the a-taxonomy of the genus and provide an effective identification tool based on DNA-barcodes. They illustrate the ability of DNA-barcodes, especially when type specimens are included, to pinpoint where a taxonomic revision is needed.
Puillandre, Nicolas, Kantor, Yuri I., Sysoev, Alexander V., Couloux, Arnaud, Meyer, Christopher P., Rawlings, T., Todd, J. A., Bouchet, Philippe, 2011, The dragon tamed? A molecular phylogeny of the Conoidea (Gastropoda), Journal of Molluscan Studies, 77, 3, 259-272
doi: 10.1093/mollus/eyr015 Résumé [+] [-]The superfamily Conoidea constitutes one of the most diverse and taxonomically challenging groups among marine molluscs. Classifications based on shell or radular characters are highly contradictory and disputed. Whereas the monophyly of the Conidae and Terebridae has not been challenged, the other constituents of the superfamily are placed in a 'trash' group, the turrids, the non-monophyly of which has been demonstrated by anatomical and molecular evidence. We present here a new molecular phylogeny based on a total of 102 conoidean genera (87 'turrids', 5 cones and 10 terebrids) and three mitochondrial genes [cytochrome oxidase I (COI), 12S rRNA and 16S rRNA]. The resulting tree recognizes 14 clades. When the Conidae (Conus s.l.) and Terebridae are ranked as families for consistency of usage, the 'turrids' must be split into 12 families of comparable rank. A new genus-level classification of the Conoidea is published in an accompanying paper.
Beu, Alan G., Bouchet, Philippe, Tröndlé, Jean, 2012, Tonnoidean gastropods of French Polynesia, Molluscan Research, 32, 2, 61-120
Résumé [+] [-]The tonnoidean gastropod fauna of French Polynesia (54 species) includes 26 species recorded from the Austral Islands (including 10 from Rapa), 33 species from the Marquesas Islands, 39 from the Society Islands, 32 from the Tuamotu Islands, and 3 from the Tarava Seamounts. Most species have planktotrophic larval development and are distributed from East Africa to eastern Polynesia, but many common western Pacific species are not present. With the possible exception of Semicassis salmonea n. sp. (Cassidae), described from the Marquesas, and Gyrineum pusillum (Ranellidae), restricted to the Austral (and Tuamotu?) Islands in southeastern-most Polynesia, no species is endemic to any individual island groups, but several species with broad overall ranges are known from only one archipelago within French Polynesia. Three species (Monoplex intermedius, Septa peasei, Ranellidae; Distorsio graceiellae, Personidae) are much more common in the Marquesas Islands than further westwards. Three species of Bursidae (Bursa lamarckii, Bursina nobilis, Tutufa tenuigranosa) are recorded only from the Marquesas Islands, whereas the only record of Bursina fijiensis is from the Austral Islands. The two very similar species Bursa asperrima and B. cruentata have a complex distribution; only B. cruentata is common west of Hawaii, and only B. asperrima occurs east of Hawaii, but only B. cruentata has been collected at the Marquesas Islands. Ranella venustula is a synonym of Bursa rhodostoma. Neotypes are designated for Buccinum ponderosum Gmelin, 1791, B. nodulosum Gmelin, 1791, Cassis caputequinum Röding, 1798, C. denticulata Röding, 1798, C. glabra Röding, 1798, C. hamata Röding, 1798, Phalium edentulum Link, 1807, P. quadratum Link, 1807, Buccinum biarmatum Dillwyn, 1817, B. pantherina Dillwyn, 1817, Cassis tenuilabris Menke, 1828, and Dolium rufum Blainville, 1829, and lectotypes are designated for Buccinum cornutum Linnaeus, 1758, Murex bufonius Gmelin, 1791 and Cassis torquata Reeve, 1848.
Cabezas, Patricia, Sanmartín, Isabel, Paulay, Gustav, Macpherson, Enrique, Machordom, Annie, 2012, Deep under the sea: unraveling the evolutionary history of the deep-sea squat lobster Paramunida (Decapoda, Munididae), Evolution, 66, 6, 1878-1896
doi: 10.1111/j.1558-5646.2011.01560.x Résumé [+] [-]The diversification of Indo-Pacific marine fauna has long captivated the attention of evolutionary biologists. Previous studies have mainly focused on coral reef or shallow water-associated taxa. Here, we present the first attempt to reconstruct the evolutionary historyphylogeny, diversification, and biogeographyof a deep-water lineage. We sequenced the molecular markers 16S, COI, ND1, 18S, and 28S for nearly 80% of the nominal species of the squat lobster genus Paramunida. Analyses of the molecular phylogeny revealed an accelerated diversification in the late OligoceneMiocene followed by a slowdown in the rate of lineage accumulation over time. A parametric biogeographical reconstruction showed the importance of the southwest Pacific area, specifically the island arc of Fiji, Tonga, Vanuatu, Wallis, and Futuna, for diversification of squat lobsters, probably associated with the global warming, high tectonic activity, and changes in oceanic currents that took place in this region during the OligoceneMiocene period. These results add strong evidence to the hypothesis that the Neogene was a period of major diversification for marine organisms in both shallow and deep waters.
Cairns, Stephen, Kitahara, Marcelo, 2012, An illustrated key to the genera and subgenera of the Recent azooxanthellate Scleractinia (Cnidaria, Anthozoa), with an attached glossary, ZooKeys, 227, 1-47
doi: 10.3897/zookeys.227.3612 Résumé [+] [-]The 120 presently recognized genera and seven subgenera of the azooxanthellate Scleractinia are keyed using gross morphological characters of the corallum. All genera are illustrated with calicular and side views of coralla. All termes used in the key are defined in an illustrated glossary. A table of all species-level keys, both comprehensive and faunistic, is provided covering the last 40 years.
Castelin, Magalie, Lorion, Julien, Brisset, Julien, Cruaud, Corinne, Maestrati, Philippe, Utge, Jose, Samadi, Sarah, 2012, Speciation patterns in gastropods with long-lived larvae from deep-sea seamounts, Molecular Ecology, 21, 19, 4828-4853
doi: 10.1111/j.1365-294X.2012.05743.x Résumé [+] [-]Characterizing speciation processes in the sea remains a highly contentious issue because geographic barriers to gene exchange, which are the initial conditions for the allopatric speciation model, are not obvious. Moreover, many benthic marine organisms have long-lived planktonic larvae that allow them to connect distant patches of habitats. We here analyse the pattern of speciation in the gastropod genus Bursa in which all species have long-lived and planktonic-feeding larvae. We use a large taxonomic and ecologic coverage of Bursidae from the Indo-Pacific. We use an integrative approach to taxonomy to give more support to available taxonomic hypotheses. This analysis revealed cryptic lineages and suggest that a taxonomic revision of the family should be performed. A molecular clock calibrated from the fossil record was used to estimate divergence times. We then focus on the three co-existing species living in the deep waters of New Caledonia. Over the wide sampled area, no genetic structure was detected for the three species. We show that among New Caledonia species, Bursa fijiensis and Bursa quirihorai are reciprocally monophyletic. These two species are the two more closely related species in the inferred phylogeny. The present biogeographic ranges of the two species and the estimated time of divergence make the scenario of geographic isolation followed by secondary contact unlikely.
Claremont, Martine, Reid, David G., Williams, Suzanne T., 2012, Speciation and dietary specialization in Drupa, a genus of predatory marine snails (Gastropoda: Muricidae): Speciation and dietary specialization in Drupa, Zoologica Scripta, 41, 2, 137-149
doi: 10.1111/j.1463-6409.2011.00512.x Résumé [+] [-]We test the competing predictions of allopatric speciation and of ecological speciation by dietary specialization in Drupa, an Indo-Pacific genus of carnivorous marine gastropods in the family Muricidae. We use a well-resolved molecular phylogeny (reconstructed from one nuclear and two mitochondrial genes) to show the validity of the traditional species D. elegans, D. rubusidaeus, D. clathrata, D. morum and D. speciosa. ` Drupa ricinus' is shown to consist of three species: D. ricinus s. s., D. albolabris and a new species, possibly endemic to Japan. ` Purpura' aperta is transferred to Drupa. Despite potential widespread dispersal and a high degree of range overlap among sister species, range sizes between sister species are highly asymmetric, suggesting that speciation has been predominately peripatric. The exception is the sister pair D. ricinus s. s. and D. albolabris, which have symmetric range sizes and are sympatric over broad Indo-Pacific ranges. Such symmetry and extensive sympatry are contrary to the predictions of the (peripatric) allopatric model of speciation. Nevertheless, contrary to the predictions of an ecological speciation model based upon dietary specialization, broad dietary range appears to be identical between the species. Small differences in microhabitat preferences (or hypothetical dietary specialization at a fine taxonomic scale) may have been significant in the speciation process or, if initial divergence was allopatric, in permitting subsequent sympatry. Broad dietary shifts appear to have accompanied more ancient divergences within the genus Drupa.
- Geiger, Daniel L., 2012, Monograph of the little slit shells. Volume 1. Introduction, Scissurellidae, Santa Barbara Museum of Natural History Monographs, 1, 7, 1-728
- Geiger, Daniel L., 2012, Monograph of the little slit shells. Volume 2. Anatomidae, Larocheidae, Depressizonidae, Sutilizonidae, Temnocinclidae, Santa Barbara Museum of Natural History Monographs, 2, 7, 729-1291
Geiger, Daniel L., Marshall, Bruce A., 2012, New species of Scissurellidae, Anatomidae, and Larocheidae (Mollusca: Gastropoda: Vetigastropoda) from New Zealand and beyond, Zootaxa, 3344, 1-33
Résumé [+] [-]Thirteen new species of Scissurellidae (Scissurella regalis n. sp., Sinezona mechanica n. sp., Sinezona platyspira n. sp., Sinezona enigmatica n. sp., Sinezona wanganellica n. sp., Satondella azonata n. sp., Satondella bicristata n. sp.), Anatomidae (Anatoma amydra n. sp., Anatoma kopua n. sp., Anatoma megascutula n. sp., Anatoma tangaroa n. sp.), and Larocheidae (Larochea spirata n. sp., Larocheopsis macrostoma n. sp.) are described, all of which occur in New Zealand waters. The greatest geographic source of new taxa is the islands and underwater features off northern New Zealand. The new shell-morphological term "sutsel" is introduced for the area between the SUTure and the SELenizone.
Houart, Roland, 2012, The Timbellus richeri complex (Gastropoda: Muricidae) in the southwest Pacific, Novapex, 13, 3-4, 91-101
Résumé [+] [-]Two new species of Timbellus are described from the Coral Sea and the New Caledonia region with extension to Fiji, Tonga and the Kermadec Islands for one species. Both species are compared to T. richeri (Houart, 1987) and T. vespertilio (Kuroda, 1959). Nine species of the genus Timbellus are recorded from the Coral Sea and the New Caledonia region. Ouly one, T. bilobatus n. sp. Is known from other localities in the Indo-West Pacific province.
Kantor, Yuri I., Strong, Ellen E., Puillandre, Nicolas, 2012, A new lineage of Conoidea (Gastropoda: Neogastropoda) revealed by morphological and molecular data, Journal of Molluscan Studies, 78, 3, 246-255
doi: 10.1093/mollus/eys007 Résumé [+] [-]The hyperdiverse group of venomous Conoidea has eluded attempts to construct a robust and stable classification owing to the absence of a robust and stable phylogenetic framework. New molecular data have greatly enhanced our understanding of conoidean evolution, allowing the construction of a new family-level classification. This expanding framework has also allowed the discovery of several independent lineages that merit recognition at familial rank. One of these, based on seven specimens collected over more than 20 years from deep waters off New Caledonia, represents a unique, monotypic lineage closely related to Mitromorphidae, which we here name as the new family Bouchetispiridae. This new lineage bears a unique combination of teleoconch, protoconch and anatomical characters previously unknown within the Conoidea, including a translucent, fusiform shell with sculpture of strong axial ribs crossed by spiral cords, a multispiral protoconch of only 2.5 whorls with punctate sculpture, hypodermic marginal teeth and a multilayered venom bulb with two layers of muscle separated by connective tissue. This lineage may represent the sole survivor of a previously more diverse clade, or is simply one of many unique taxa that have arisen among the isolated sea mounts off New Caledonia.
Kantor, Yuri I., Puillandre, Nicolas, 2012, Evolution of the radular apparatus in Conoidea (Gastropoda: Neogastropoda) as inferred from a molecular phylogeny, Malacologia, 55, 1, 55–90
doi: 10.4002/040.055.0105 Résumé [+] [-]The anatomy and evolution of the radular apparatus in predatory marine gastropods of the superfamily Conoidea is reconstructed on the basis of a molecular phylogeny, based on three mitochondrial genes (COI, 12S and 16S) for 102 species. A unique feeding mechanism involving use of individual marginal radular teeth at the proboscis tip for stabbing and poisoning of prey is here assumed to appear at the earliest stages of evolution of the group. The initial major evolutionary event in Conoidea was the divergence to two main branches. One is characterized by mostly hypodermic marginal teeth and absence of an odontophore, while the other possesses a radula with primarily duplex marginal teeth, a strong subradular membrane and retains a fully functional odontophore. The radular types that have previously been considered most ancestral, “prototypic” for the group (flat marginal teeth; multicuspid lateral teeth of Drilliidae; solid recurved teeth of Pseudomelatoma and Duplicaria), were found to be derived conditions. Solid recurved teeth appeared twice, independently, in Conoidea – in Pseudomelatomidae and Terebridae. The Terebridae, the sister group of Turridae, are characterized by very high radular variability, and the transformation of the marginal radular teeth within this single clade repeats the evolution of the radular apparatus across the entire Conoidea.
Kantor, Yuri I., Puillandre, Nicolas, Rivasseau, Audrey, Bouchet, Philippe, 2012, Neither a buccinid nor a turrid: a new family of deep-sea snails for Belomitra P. Fischer, 1883 (Mollusca, Neogastropoda) with a review of recent Indo-Pacific species, Zootaxa, 3496, 1-64
Résumé [+] [-]The new family Belomitridae is established for the deep-water buccinoid genus Belomitra P. Fischer, 1883, based on morphological (shell and radulae) and molecular evidence. The rachiglossate radula is uniquely characterized by a multicuspid rachidian and lateral teeth with very long narrow bases and two small cusps closer to tip. Molecular analysis of a reduced set of Buccinoidea did not resolve the group as a clade, but shows that Belomitridae forms a well supported clade within Buccinoidea. Species of Belomitra have adult sizes in the 7-53 mm range; they live in deep water, mostly in the 500-2,000 meters range, at low and mid latitudes. Eleven valid species described from the Indo-Pacific were originally named in the families Buccinidae, Columbellidae, Cancellariidae, Volutidae, and Turridae. Fourteen new species are described: Belomitra nesiotica n. sp. (Society Islands to Tonga and Fiji in 580-830 m), B. bouteti n. sp. (Society and Tuamotu Islands in 430-830 m), B. subula n. sp. (Solomon Islands to Vanuatu in 760-1110 m), B. caudata n. sp. (Sulu Sea in 2300 m), B. gymnobela n. sp. (South Pacific, eastern Indonesia and Philippines in 780-2040 m), B. hypsomitra n. sp. (Fiji in 392-407 m), B. brachymitra n. sp. (Fiji in 395-540 m), B. comitas n. sp. (Madagascar and Philippines in 1075-1110 m), B. minutula (Coral Sea in 490 m), B. granulata n. sp. (New Caledonia in 105-860 m), B. reticulata n. sp. (Tonga and Fiji to New Caledonia in 395-656 m), B. decapitata n. sp. (Indian Ocean and New Caledonia in 3680-4400 m), B. admete n. sp. (off Sri Lanka in 2540 m), and B. radula n. sp. (Madagascar in 367-488 m).
Macpherson, Enrique, 2012, New deep-sea squat lobsters of the genus Galathea Fabricius, 1793 (Decapoda, Galatheidae) from Vanuatu and New Caledonia, Zoosystema, 34, 2, 409-427
doi: 10.5252/z2012n2a13 Résumé [+] [-]During two cruises to Vanuatu, MUSORSTOM 8 (September-October 1994) and SANTO 2006 (September-October 2006), numerous specimens of deep-sea galatheids belonging to the genus Galathea Fabricius, 1793 were collected. The specimens were caught at stations at depths between 180 and 702 m. These collections contain five new species (G. barbellata n. sp., G. echinata n. sp., G. profunda n. sp., G. raventosae n. sp. and G. sanctae n. sp.), all of which are also found in other collections obtained by French cruises to New Caledonia. Galathea barbellata n. sp., G. echinata n. sp. and G. profunda n. sp. are closely related to G. robusta Baba, 1990, from Madagascar, G. raventosae n. sp. resembles G. consobrina De Man, 1902, from Indonesia, the Philippines, South China Sea and SW Australia, and G. sanctae n. sp. is very close to G. multilineata Balss, 1913, from Japan, East China Sea, Taiwan and the Philippines.
Motomura, Hiroyuki, Causse, Romain, Struthers, CARL D., 2012, Phenacoscorpius longilineatus, a New Species of Deepwater Scorpionfish from the Southwestern Pacific Ocean and the First Records of Phenacoscorpius adenensis from the Pacific Ocean (Teleostei: Scorpaenidae), Species Diversity, 17, 151-160
Résumé [+] [-]A new scorpionfish, Phenacoscorpius longilineatus n. sp., is described on the basis of 94 specimens from New Caledonia and New Zealand in the southwestern Pacific Ocean, at depths of 345–1089 m. The new species is distinguished from its congeners by the following combination of characters: 8–18 (mode 12) pored lateral-line scales, last of which is situated from below base of seventh spine to below base of fourth dorsal-fin soft ray; no slit behind fourth gill arch; palatine teeth present; second preopercular spine always absent; nuchal and parietal spines distinct; nape and anterior body strongly arched in adults of over ca. 80 mm standard length (SL); post-nuchal-spine length 5.0–9.7% (mean 7.2%) of SL; caudal fin length 21.4–26.7% (mean 23.4%) of SL; 1–5 (mode 2) black spots on posterior half of caudal peduncle; and body usually uniformly whitish without distinct dark saddles in preserved specimens. In addition, P. adenensis Norman, 1939, which is similar to P. longilineatus morphologically, is redescribed on the basis of 3 specimens from the western Indian Ocean and 52 specimens from the southwestern Pacific. The latter represent the first records of this species outside the western Indian Ocean.
Puillandre, Nicolas, Modica, Maria-Victoria, Zhan, Y., Sirovich, L., Boisselier, Marie-Catherine, Cruaud, Corinne, Holford, Mandë, Samadi, Sarah, 2012, Large-scale species delimitation method for hyperdiverse groups: LARGE-SCALE SPECIES DELIMITATION, Molecular Ecology, 21, 11, 2671-2691
doi: 10.1111/j.1365-294X.2012.05559.x Résumé [+] [-]Accelerating the description of biodiversity is a major challenge as extinction rates increase. Integrative taxonomy combining molecular, morphological, ecological and geographical data is seen as the best route to reliably identify species. Classic molluscan taxonomic methodology proposes primary species hypotheses (PSHs) based on shell morphology. However, in hyperdiverse groups, such as the molluscan family Turridae, where most of the species remain unknown and for which homoplasy and plasticity of morphological characters is common, shell-based PSHs can be arduous. A four-pronged approach was employed to generate robust species hypotheses of a 1000 specimen South-West Pacific Turridae data set in which: (i) analysis of COI DNA Barcode gene is coupled with (ii) species delimitation tools GMYC (General Mixed Yule Coalescence Method) and ABGD (Automatic Barcode Gap Discovery) to propose PSHs that are then (iii) visualized using Klee diagrams and (iv) evaluated with additional evidence, such as nuclear gene rRNA 28S, morphological characters, geographical and bathymetrical distribution to determine conclusive secondary species hypotheses (SSHs). The integrative taxonomy approach applied identified 87 Turridae species, more than doubling the amount previously known in the Gemmula genus. In contrast to a predominantly shell-based morphological approach, which over the last 30 years proposed only 13 new species names for the Turridae genus Gemmula, the integrative approach described here identified 27 novel species hypotheses not linked to available species names in the literature. The formalized strategy applied here outlines an effective and reproducible protocol for large-scale species delimitation of hyperdiverse groups.
Claremont, Martine, Houart, Roland, Williams, Suzanne T., Reid, David G., 2013, A molecular phylogenetic framework for the Ergalataxinae (Neogastropoda: Muricidae), Journal of Molluscan Studies, 79, 1, 19-29
doi: 10.1093/mollus/eys028 Résumé [+] [-]The validity of the muricid subfamily Ergalataxinae has recently been confirmed with molecular data, but its composition and the relationships among its constituent genera remain unclear. In order to investigate this, we use four genes (28S rRNA, 12S rRNA, 16S rRNA and cytochrome c oxidase subunit I) to construct a Bayesian phylogeny of 52 ergalataxine species in 18 genera, representing c. 40 of the currently accepted species and 86 of the genera. This is the most complete phylogeny of this taxonomically confusing subfamily yet produced. Our results indicate the polyphyly of many traditional genera, including Morula, Pascula and Orania. In order to improve the correspondence between classification and phylogeny, we restrict the definition of Morula, resurrect Tenguella and elevate Oppomorus to full genus, but describe no new genera. Several species in this analysis could not be identified and may be new, but we do not describe them. Further molecular and morphological analyses, in the context of this framework, should help to resolve the remaining ambiguities in the classification of this subfamily. The oldest fossil member of the Ergalataxinae known to us is of Early Oligocene age.
Claremont, Martine, Vermeij, Geerat J., Williams, Suzanne T., Reid, David G., 2013, Global phylogeny and new classification of the Rapaninae (Gastropoda: Muricidae), dominant molluscan predators on tropical rocky seashores, Molecular Phylogenetics and Evolution, 66, 1, 91-102
doi: 10.1016/j.ympev.2012.09.014 Résumé [+] [-]The monophyly of the muricid subfamily Rapaninae has recently been confirmed with molecular techniques, but its composition and the relationships among its constituent genera remain unclear. We use four genes (28S rRNA, 12S rRNA, 16S rRNA and cytochrome c oxidase subunit I, COI) to construct a Bayesian phylogeny of 80 rapanine species (73% of the approximately 109 currently accepted), representing 27 of the 31 nominal genera. This is the most complete phylogeny of this taxonomically confusing subfamily yet produced. We propose a revised phylogenetic classification of the Rapaninae, assigning the recognized species to 28 genera. Most of the morphologically-defined rapanine genera are considered valid, including Purpura, Drupa, Thais and Nassa, but many of them are here restricted or redefined so that they are monophyletic. In particular the familiar genus Thais is narrowly restricted to a single species. Many groups previously accepted as subgenera, including Mancinella, Vasula, Thalessa and Thaisella, are here accorded full generic rank. We describe one new genus, Indothais. While we do not formally alter species-level taxonomy, we show molecular evidence for two cryptic species and several instances of probable species synonymy. We estimate the age of diversification of the Rapaninae as Late Cretaceous (75.9 Ma) and of many of its genera as Miocene. (C) 2012 Elseviei Inc. All rights reserved.
Dijkstra, Henk H., Maestrati, Philippe, 2013, New species and new records of bathyal living Pectinoidea (Bivalvia: Propeamussiidae: Pectinidae) from the Southwest Pacific, Zoosystema, 35, 4, 469-478
doi: 10.5252/z2013n4a1 Résumé [+] [-]Nineteen species of Pectinoidea (16 Propeamussiidae, 3 Pectinidae) are herein listed. All species from the Solomon Islands (9 species), and New Caledonia (Norfolk Ridge , main island of New Caledonia , Grand Passage , Coral Sea ) are new records. Two Propeamussiidae species are new to science: Parvamussium orbiculatum n. sp. (Solomon Islands and Coral Sea) and Parvamussium perspicuum n. sp. (Vanuatu). One pectinid species from Vanuatu (Juxtamusium sp.) will be described later, when more material becomes available.
Kitahara, Marcelo V., Cairns, Stephen D., Stolarski, Jarosław, Miller, David J., 2013, Deltocyathiidae, an early-diverging family of Robust corals (Anthozoa, Scleractinia): Deltocyathiidae, a new scleractinian family, Zoologica Scripta, 42, 2, 201-212
doi: 10.1111/j.1463-6409.2012.00575.x Résumé [+] [-]Over the last decade, molecular phylogenetics has called into question some fundamental aspects of coral systematics. Within the Scleractinia, most families composed exclusively by zooxanthellate species are polyphyletic on the basis of molecular data, and the second most speciose coral family, the Caryophylliidae (most members of which are azooxanthellate), is an unnatural grouping. As part of the process of resolving taxonomic affinities of ‘caryophylliids’, here a new ‘Robust’ scleractinian family (Deltocyathiidae fam. N.) is proposed on the basis of combined molecular (CO1 and 28S rDNA) and morphological data, accommodating the early-diverging clade of traditional caryophylliids (represented today by the genus Deltocyathus). Whereas this family captures the full morphological diversity of the genus Deltocyathus, one species, Deltocyathus magnificus, is an outlier in terms of molecular data, and groups with the ‘Complex’’ coral family Turbinoliidae. Ultrastructural data, however, place D. magnificus within Deltocyathiidae fam. nov. Unfortunately, limited ultrastructural data are as yet available for turbinoliids, but D. magnificus may represent the first documented case of morphological convergence at the microstructural level among scleractinian corals.
Lemaitre, Rafael, Ahyong, Shane T., Chan, Tin-Yam, Corbari, Laure, Ng, Peter K.L., 2013, The genus Paragiopagurus Lemaitre, 1996 (Crustacea, Decapoda, Anomura, Paguroidea, Parapaguridae): A worldwide review and summary, with descriptions of five new species, Mémoires du Muséum national d'Histoire naturelle, 27, 204, 311-421
Résumé [+] [-]A review of the deep-water hermit crab species of the genus Paragiopagurus Lemaitre, 1996 from the world oceans is presented. The core specimen base for this study has come primarily from the abundant collections of species of this genus obtained during French campaigns over the last four decades, and complemented with numerous specimens from many other deep-sea expeditions and deposited in various museum holdings around the world. Paragiopagurus is one of the most speciose genus among the Parapaguridae Smith, 1882, although it is considered a phylogenetically heterogeneous assemblage and does not appear to have an apomorphy of its own. Bathymetrically, the species range in depth from 36 to 2034 m, although they occur most frequently between 200 and 1000 m. The species utilize as housing, gastropod shells (or rarely scaphopod shells, siliceous sponges, or hollow pieces of wood) that may or may not be colonized by actinians or zoanthids. In this review, 24 species are recognized, of which five are new, P. laperousei n. sp., P. orthotenes n. sp., P. oxychelos n. sp., P. trilineatus n. sp., and P. umbonatus n. sp. The new species are fully described and illustrated. All previously known species of the genus are diagnosed or redescribed, and previously published illustrations of important taxonomic characters assembled and complemented, when useful, with new illustrations. The treatment of each species includes a full synonymy, materials examined (type and non-types), colouration, habitat or type of housing used, distribution, and remarks on taxonomy and morphological affinities. Colour photographs are included for 14 of the species. Parapagurus curvispina de Saint Laurent, 1974, a species tentatively moved after its description to Sympagurus Smith, 1883 and then to Paragiopagurus, is herein transferred with certainty to Oncopagurus Lemaitre, 1996. Parapagurus spinimanus Balss, 1911, a species that had been incorrectly placed in Paragiopagurus, is herein moved to Sympagurus. Parapagurus sculptochela Zarenkov, 1990, a taxon previously considered a junior synonym of Paragiopagurus boletifer (de Saint Laurent, 1972), is herein resurrected as a valid species of Paragiopagurus. The bathymetric and geographic distributions of Paragiopagurus species are summarized and briefly discussed, including a summary table, graph, and map with generalized distribution patterns.
Ma, Ka Yan, Chu, Ka Hou, Ahyong, Shane T., Chan, Tin‐Yam, Corbari, Laure, Ng, Peter K.L., 2013, The deep-sea spiny lobster genus Puerulus Ortmann, 1897 (Crustacea, Decapoda, Palinuridae), with descriptions of five new species, Mémoires du Muséum national d'Histoire naturelle, 27, 204, 191-230
Résumé [+] [-]Recent French deep-sea expeditions in the Indo-West Pacific resulted in the collection of abundant material of the deep-sea lobster genus Puerulus Ortmann, 1897 (Palinuridae). Difficulties in identification necessitated a generic revision and as a result, five new species are described, all of which are similar to P. angulatus (Bate, 1888). Puerulus angulatus was thought to have a wide distribution from eastern Africa to Marquesas Islands, but is now restricted to the western Pacific, from Japan to Australia. Of the five new species, P. gibbosus n. sp. is found in eastern Africa, P. mesodontus n. sp. from Japan to Fiji, P. richeri n. sp. from the New Caledonia to Marquesas Islands, while P. sericus n. sp. and P. quadridentis n. sp. mainly occur around New Caledonia. Of the other three previously described species, the distribution of P. velutinus Holthuis, 1963, is extended to Fiji, while P. sewelli Ramadan, 1938, and P. carinatus Borradaile, 1910, are still only known from the northern and western parts of the Indian Ocean, respectively. COI gene sequence differences support the morphological species distinctions.
Macpherson, Enrique, Robainas-Barcia, Aymee, 2013, A new genus and some new species of the genus Lauriea Baba, 1971 (Crustacea, Decapoda, Galatheidae) from the Pacific and Indian Oceans, using molecular and morphological characters, Zootaxa, 3599, 2, 136-160
Osawa, Masayuki, Lin, Chia-Wei, Ahyong, Shane T., Chan, Tin-Yam, Corbari, Laure, Ng, Peter K.L., 2013, Munidopsidae Ortmann, 1898 (Crustacea, Decapoda, Anomura) collected by the PANGLAO 2005 and AURORA expeditions to the Philippines, with descriptions of four new species from the Philippines and one new species from Taiwan, Mémoires du Muséum national d'Histoire naturelle, 27, 204, 231-286
Résumé [+] [-]Squat lobsters of the family Munidopsidae are reported from deep-waters off the Philippines based on the material collected by the PANGLAO 2005 and AURORA expeditions. The material includes three species of the genus Galacantha A. Milne-Edwards, 1880 and 23 species of Munidopsis Whiteaves, 1874. Four species are described as new to science and nine species are recorded for the first time from the Philippines. Colour notes and illustrations from fresh specimens are provided for all the species. The poorly known species, Munidopsis ceratophthalma Alcock, 1901, is described in detail based on a Philippine specimen to supplement the original account of the species. Re-examination of the specimen previously reported as M. ceratophthalma from Taiwan reveals that it represents a new species, which is hereby described in this report.
Pante, Eric, Heestand Saucier, Esprit, France, Scott C., 2013, Molecular and morphological data support reclassification of the octocoral genus Isidoides, Invertebrate Systematics, 27, 4, 365-378
doi: 10.1071/IS12053 Résumé [+] [-]The rare octocoral genus Isidoides Nutting, 1910 was originally placed in the Gorgonellidae (now the Ellisellidae), even though it showed a remarkable similarity to the Isidae (now the Isididae). Isidoides was not classified in the Isididae mostly because the type specimen lacked skeletal nodes, a defining characteristic of that family. The genus was later assigned to the Chrysogorgiidae based on sclerite morphology. Specimens were recently collected in the south-western Pacific, providing material for genetic analysis and detailed characterisation of the morphology, and allowing us to consider the systematic placement of this taxon within the suborder Calcaxonia.Apreviously reported phylogeny allowed us to reject monophyly with the Chrysogorgiidae, and infer a close relationship with the Isididae subfamily Keratoisidinae. While scanning for molecular variation across mitochondrial genes, we discovered a novel gene order that is, based on available data, unique among metazoans. Despite these new data, the systematic placement of Isidoides is still unclear, as (1) the phylogenetic relationships among Isididae subfamilies remain poorly resolved, (2) genetic distances between mitochondrial mtMutS sequences from Isidoides and Keratoisidinae are characteristic of intra-familial distances, and (3) mitochondrial gene rearrangements may occur among confamilial genera. For these reasons, and because a revision of the Isididae is beyond the scope of this contribution, we amend the familial placement of Isidoides to incertae sedis.
Piednoël, Mathieu, Donnart, Tifenn, Esnault, Caroline, Graça, Paula, Higuet, Dominique, Bonnivard, Eric, Kashkush, Khalil, 2013, LTR-Retrotransposons in R. exoculata and Other Crustaceans: The Outstanding Success of GalEa-Like Copia Elements, PLoS ONE, 8, 3, e57675
doi: 10.1371/journal.pone.0057675 Résumé [+] [-]Transposable elements are major constituents of eukaryote genomes and have a great impact on genome structure and stability. They can contribute to the genetic diversity and evolution of organisms. Knowledge of their distribution among several genomes is an essential condition to study their dynamics and to better understand their role in species evolution. LTR-retrotransposons have been reported in many diverse eukaryote species, describing a ubiquitous distribution. Given their abundance, diversity and their extended ranges in C-values, environment and life styles, crustaceans are a great taxon to investigate the genomic component of adaptation and its possible relationships with TEs. However, crustaceans have been greatly underrepresented in transposable element studies. Using both degenerate PCR and in silico approaches, we have identified 35 Copia and 46 Gypsy families in 15 and 18 crustacean species, respectively. In particular, we characterized several full-length elements from the shrimp Rimicaris exoculata that is listed as a model organism from hydrothermal vents. Phylogenic analyses show that Copia and Gypsy retrotransposons likely present two opposite dynamics within crustaceans. The Gypsy elements appear relatively frequent and diverse whereas Copia are much more homogeneous, as 29 of them belong to the single GalEa clade, and species-or lineage-dependent. Our results also support the hypothesis of the Copia retrotransposon scarcity in metazoans compared to Gypsy elements. In such a context, the GalEa-like elements present an outstanding wide distribution among eukaryotes, from fishes to red algae, and can be even highly predominant within a large taxon, such as Malacostraca. Their distribution among crustaceans suggests a dynamics that follows a "domino days spreading'' branching process in which successive amplifications may interact positively.
Williams, Suzanne T., Smith, L.M., Herbert, David Guy, Marshall, Bruce A., Warén, Anders, Kiel, Steffen, Dyal, Patricia, Linse, Katrin, Vilvens, Claude, Kano, Yasunori, 2013, Cenozoic climate change and diversification on the continental shelf and slope: evolution of gastropod diversity in the family Solariellidae (Trochoidea), Ecology and Evolution, 3, 4, 887-917
doi: 10.1002/ece3.513 Résumé [+] [-]Recent expeditions have revealed high levels of biodiversity in the tropical deep-sea, yet little is known about the age or origin of this biodiversity, and large-scale molecular studies are still few in number. In this study, we had access to the largest number of solariellid gastropods ever collected for molecular studies, including many rare and unusual taxa. We used a Bayesian chronogram of these deep-sea gastropods (1) to test the hypothesis that deep-water communities arose onshore, (2) to determine whether Antarctica acted as a source of diversity for deep-water communities elsewhere and (3) to determine how factors like global climate change have affected evolution on the continental slope. We show that although fossil data suggest that solariellid gastropods likely arose in a shallow, tropical environment, interpretation of the molecular data is equivocal with respect to the origin of the group. On the other hand, the molecular data clearly show that Antarctic species sampled represent a recent invasion, rather than a relictual ancestral lineage. We also show that an abrupt period of global warming during the Palaeocene Eocene Thermal Maximum (PETM) leaves no molecular record of change in diversification rate in solariellids and that the group radiated before the PETM. Conversely, there is a substantial, although not significant increase in the rate of diversification of a major clade approximately 33.7Mya, coinciding with a period of global cooling at the EoceneOligocene transition. Increased nutrients made available by contemporaneous changes to erosion, ocean circulation, tectonic events and upwelling may explain increased diversification, suggesting that food availability may have been a factor limiting exploitation of deep-sea habitats. Tectonic events that shaped diversification in reef-associated taxa and deep-water squat lobsters in central Indo-West Pacific were also probably important in the evolution of solariellids during the Oligo-Miocene.
Chan, Benny K.K., Corbari, Laure, Rodriguez Moreno, Paula A., Jones, Diana S., 2014, Two new deep-sea stalked barnacles, Arcoscalpellum epeeum sp. nov. and Gymnoscalpellum indopacificum sp. nov., from the Coral Sea, with descriptions of the penis in Gymnoscalpellum dwarf males, Zootaxa, 3866, 2, 261-276
doi: 10.11646/zootaxa.3866.2.5 Résumé [+] [-]The present study describes a new species of Arcoscalpellum Hoek, 1907, and a new species of Gymnoscalpellum Newman & Ross, 1971, collected by deep-sea expeditions led by the Muséum national d’Histoire naturelle (Paris) in the Coral Sea off New Caledonia, Papua New Guinea (PNG), the Solomon Islands and Vanuatu. Arcoscalpellum epeeum sp. Nov. Differs from all described species of Arcoscalpellum by the presence of a long, sharp, sword-shaped carina, which extends beyond the apices of the terga by 1/3 to 1/4 of their length. The species is dioecious, with large females and dwarf males that are sac-like, lack shell plates and are housed in paired receptacles at the inner edges of the scutal plates. Arcoscalpellum epeeum sp. Nov. Was collected in the waters of New Caledonia and Vanuatu. Gymnoscalpellum indopacificum sp. Nov. Differs from the six currently described species of Gymnoscalpellum by having a very small inframedian latus and a branched upper latus. The species is dioecious, with large females and dwarf males, the latter composed of 4 shell plates and housed in paired receptacles at the inner edges of the scutal plates. The penis of the dwarf males of G. indopacificum sp. Nov. Is about 0.8 of the total length of the male and has five side branches extending out along its length. Gymnoscalpellum indopacificum sp. Nov. Is distributed in the waters of Papua New Guinea, the Solomon Islands and Vanuatu, and represents the first record of this genus in the Indo-Pacific region.
Kantor, Yuri I., Lozouet, Pierre, Puillandre, Nicolas, Bouchet, Philippe, 2014, Lost and found: The Eocene family Pyramimitridae (Neogastropoda) discovered in the Recent fauna of the Indo-Pacific, Zootaxa, 3754, 3, 239-276
doi: 10.11646/zootaxa.3754.3.2 Résumé [+] [-]Most neogastropod families have a continuous record from the Cretaceous or Paleogene to the Recent. However, the fossil record also contains a number of obscure nominal families with unusual shell characters that are not adequately placed in the current classification. Some of these are traditionally regarded as valid, and some have been “lost” in synonymy. One such “lost” family is the Pyramimitridae, established by Cossmann in 1901 for the Eocene genus Pyramimitra, and currently included in the synonymy of Buccinidae. Examination of several species of inconspicuous, small turriform gastropods has revealed a radula type so far unknown in Neogastropoda, and their shell characters identify them as members of the "extinct" family Pyramimitridae. Neither the radular morphology nor the anatomy reveal the relationships of this enigmatic, “living fossil” family. Molecular data (12S, 16S, 28S, COI) confirm the recognition of Pyramimitridae as a distinct family, but no sister group was identified in the analysis. The family Pyramimitridae Cossmann, 1901, is thus restored as a valid family of Neogastropoda that includes the genera Pyramimitra Conrad, 1865, Endiatoma Cossmann, 1896, Vaughanites Woodring, 1928, Hortia Lozouet, 1999, and Teremitra new genus. Pyramimitrids occur in the Recent fauna at bathyal depths of the Indo- Pacific from Taiwan to Madagascar and New Zealand, with three genera and nine species (all but one new).
Kool, Hugo H., Galindo, Lee Ann, 2014, Description and Molecular Characterization of Six New Species of Nassarius (Gastropoda, Nassariidae) from the Western Pacific Ocean, American Malacological Bulletin, 32, 2, 147-164
doi: 10.4003/006.032.0202 Résumé [+] [-]Six new species of the genus Nassarius Duméril, 1805 are described, based on material collected from the Coral Triangle and the South Pacific. We combine traditional morphology-based descriptions with the molecular (Cytochrome c oxidase I - COI) signature of the new species. New species are: Nassarius ocellatus sp. Nov. (Philippines to Vanuatu), Nassarius houbricki sp. Nov. (Solomon Islands to Queensland and Tonga), Nassarius radians sp. Nov. (Philippines to Vanuatu), Nassarius vanuatuensis sp. Nov. (Vanuatu), Nassarius velvetosus sp. Nov. (Western Australia to Fiji) and Nassarius martinezi sp. Nov. (Solomon Islands to Tonga).
Lemaitre, Rafael, 2014, A worldwide taxonomic and distributional synthesis of the genus Oncopagurus Lemaitre, 1996 (Crustacea: Decapoda: Anomura: Parapaguridae), with descriptions of nine new species, The Raffles Bulletin of Zoology, 62, 210–301
Résumé [+] [-]A worldwide taxonomic and distributional synthesis of the deep-water hermit crab genus Oncopagurus Lemaitre, 1996 is presented. This genus, originally defined for 10 species is set apart from other Parapaguridae as well as other Paguroidea, by one synapomorphy: the presence of an upwardly curved epistomial spine. This study is based on a large amount of specimens deposited in major museums and collected during deep-sea sampling across the world oceans since the late 1800s, with the bulk of material coming from French campaigns in the Indo-Pacific, central and south Pacific during the last 40 years. A total of 24 species are recognised in this investigation, nine of which are new and fully described and illustrated. All previously known species are diagnosed or re-described, including figures assembled from recent published accounts or newly illustrated, of the most important morphological features useful for identifi cations. Information for each species includes a synonymy (full or abbreviated if a synonymy has recently been published), material examined (type and non-types), variations when signifi cant, colouration when available, habitat or type of housing used, distribution, and remarks on taxonomy and morphological affinities. Rare colour photographs are included for five species. Species of Oncopagurus range in depth from the Continental Shelf (50 m) to the Continental Rise (2308 m), although they are most commonly found in 50–500 m. Individuals of the majority of species in this genus are minute in size (< 3 mm in shield length), species differ in subtle morphological characters, and often exhibit the same broad morphological variations related to sex and size that has been documented in species of other genera of Parapaguridae. Oncopagurus mironovi Zhadan, 1997, a taxon reported from the Nazca and Sala-y-Gómez Ridges, is considered a junior synonym of the widely distributed O. indicus (Alcock, 1905). The bathymetric and geographic distributions of Oncopagurus species are summarised and briefly discussed, complemented with a summary table, graph, and map with generalised distribution patterns. The scant phylogenetic knowledge of this genus is summarised.
Lindner, Alberto, Cairns, Stephen D., Zibrowius, Helmut, 2014, Leptohelia flexibilis gen. nov. et sp. nov., a remarkable deep-sea stylasterid (Cnidaria: Hydrozoa: Stylasteridae) from the southwest Pacific, Zootaxa, 3900, 4, 581-591
doi: 10.11646/zootaxa.3900.4.8 Résumé [+] [-]Leptohelia flexibilis gen. nov. et sp. nov., the first stylasterid with a combined calcified and non-calcified skeleton, is described from seamounts and the slope off the islands of New Caledonia, in the southwestern Pacific. The new species is distinguished from all other species of the family Stylasteridae by having a non-calcified organic axis, internal to the basal portion of the calcified corallum. The internal axis is flexible and enclosed by a series of up to 10 calcified annuli, allowing passive lateral bending of the colony. Molecular phylogenetic analyses confirm that Leptohelia flexibilis is a stylasterid coral and reveal that the species is closely related to Leptohelia microstylus comb. nov., a southwestern Pacific stylasterid that lacks an internal axis.
Puillandre, Nicolas, Bouchet, Philippe, Duda, T.F., Kauferstein, S., Kohn, A.J., Olivera, Baldomero M., Watkins, Maren, Meyer, C., 2014, Molecular phylogeny and evolution of the cone snails (Gastropoda, Conoidea), Molecular Phylogenetics and Evolution, 78, 290-303
doi: 10.1016/j.ympev.2014.05.023 Résumé [+] [-]We present a large-scale molecular phylogeny that includes 320 of the 761 recognized valid species of the cone snails (Conus), one of the most diverse groups of marine molluscs, based on three mitochondrial genes (COI, 16S rDNA and 12S rDNA). This is the first phylogeny of the taxon to employ concatenated sequences of several genes, and it includes more than twice as many species as the last published molecular phylogeny of the entire group nearly a decade ago. Most of the numerous molecular phylogenies published during the last 15 years are limited to rather small fractions of its species diversity. Bayesian and maximum likelihood analyses are mostly congruent and confirm the presence of three previously reported highly divergent lineages among cone snails, and one identified here using molecular data. About 85% of the species cluster in the single Large Major Clade; the others are divided between the Small Major Clade (12%), the Conus californicus lineage (one species), and a newly defined clade (3%). We also define several subclades within the Large and Small major clades, but most of their relationships remain poorly supported. To illustrate the usefulness of molecular phylogenies in addressing specific evolutionary questions, we analyse the evolution of the diet, the biogeography and the toxins of cone snails. All cone snails whose feeding biology is known inject venom into large prey animals and swallow them whole. Predation on polychaete worms is inferred as the ancestral state, and diet shifts to molluscs and fishes occurred rarely. The ancestor of cone snails probably originated from the Indo-Pacific; rather few colonisations of other biogeographic provinces have probably occurred. A new classification of the Conidae, based on the molecular phylogeny, is published in an accompanying paper.
Vilvens, Claude, Williams, Suzanne T., Herbert, David G., 2014, New genus Arxellia with new species of Solariellidae (Gastropoda: Trochoidea) from New Caledonia, Papua New Guinea, Philippines, Western Australia, Vanuatu and Tonga, Zootaxa, 3826, 1, 255-281
doi: 10.11646/zootaxa.3826.1.8 Résumé [+] [-]A new genus, Arxellia, is described in the family Solariellidae. Nine species are referred to this taxon, eight of which are new and are described in this paper (Arxellia trochos n. sp., Arxellia boucheti n. sp., Arxellia herosae n. sp., Arxellia helicoides n. sp., Arxellia tracheia n. sp., Arxellia thaumasta n. sp., Arxellia maestratii n. sp. And Arxellia erythrea n. sp.). The previously described species Bathymophila tenorioi Poppe, Tagaro & Dekker, 2006 is reassigned to Arxellia.
Anseeuw, Patrick, Puillandre, Nicolas, Utge, José, Bouchet, Philippe, 2015, Perotrochus caledonicus (Gastropoda: Pleurotomariidae) revisited: descriptions of new species from the South-West Pacific, European Journal of Taxonomy, 134, 1-23
Aznar-Cormano, Laetitia, Brisset, J., Chan, Tin‐Yam, Corbari, Laure, Puillandre, Nicolas, Utgé, José, Zbinden, M., Zuccon, D., Samadi, S., 2015, An improved taxonomic sampling is a necessary but not sufficient condition for resolving inter-families relationships in Caridean decapods, Genetica, 143, 2, 195-205
doi: 10.1007/s10709-014-9807-0 Résumé [+] [-]During the past decade, a large number of multi-gene analyses aimed at resolving the phylogeneticrelationships within Decapoda. However relationships among families, and even among sub-families, remain poorly defined. Most analyses used an incomplete and opportunistic sampling of species, but also an incomplete and opportunistic gene selection among those available for Decapoda. Here we test in the Caridea if improving the taxonomic coverage following the hierarchical scheme of the classification, as it is currently accepted, provides a better phylogenetic resolution for the inter-families relationships. The rich collections of the Muse´um National d’Histoire Naturelle de Paris are used for sampling as far as possible at least two species of two different genera for each family or subfamily. All potential markers are tested over this sampling. For some coding genes the amplification success varies greatly among taxa and the phylogenetic signal is highly saturated. This result probably explains the taxon-heterogeneity among previously published studies. The analysis is thus restricted to the genes homogeneously amplified over the whole sampling. Thanks to the taxonomic sampling scheme the monophyly of most families is confirmed. However the genes commonly used in Decapoda appear non-adapted for clarifying inter-families relationships, which remain poorly resolved. Genome-wide analyses, like transcriptome-based exon capture facilitated by the new generation sequencing methods might provide a sounder approach to resolve deep and rapid radiations like the Caridea.
Barco, Andrea, Marshall, Bruce A., Houart, Roland, Oliverio, Marco, 2015, Molecular phylogenetics of Haustrinae and Pagodulinae (Neogastropoda: Muricidae) with a focus on New Zealand species, Journal of Molluscan Studies, 81, 4, 476-488
- Cairns, Stephen D., 2015, Stylasteridae (Cnidaria: Hydrozoa: Anthoathecata) of the New Caledonian Region - Tropica Deep-Sea Benthos, Mémoires du Muséum national d'Histoire naturelle, 28, 207, 363
Fedosov, Alexander, Puillandre, Nicolas, Kantor, Yuri, Bouchet, Philippe, 2015, Phylogeny and systematics of mitriform gastropods (Mollusca: Gastropoda: Neogastropoda): Phylogeny of Mitriform Gastropods, Zoological Journal of the Linnean Society, 175, 2, 336-359
doi: 10.1111/zoj.12278 Résumé [+] [-]With about 800 Recent species, ‘miters’ are a widely distributed group of tropical and subtropical gastropods that are most diverse in the Indo-West Pacific. They include the two families Mitridae and Costellariidae, similar in shell morphology and traditionally treated as close relatives. Some genera of deep-water Ptychatractidae and Volutomitridae are close to miters in shell morphology, and the term ‘mitriform gastropods’ has been introduced to refer to Mitridae, Costellariidae, and this assortment of convergent forms. The present study aimed at the reconstruction of phylogenetic relationships of mitriform gastropods based on representative taxon sampling. Four genetic markers [cytochrome c oxidase subunit I (COI), 16S and 12S rRNA mitochondrial genes, and H3 (Histone 3) nuclear gene] were sequenced for over 90 species in 20 genera, and the molecular data set was supplemented by studies of radula morphology. Our analysis recovered Mitridae as a monophyletic group, whereas the genus Mitra was found to be polyphyletic. Of 42 mitrid species included in the analysis, 37 formed a well-supported ‘core Mitridae’ consisting of four major clades, three of them consistent with the subfamilies Cylindromitrinae, Imbricariinae, and Mitrinae, and Strigatella paupercula standing out by itself. Basal to the ‘core Mitridae’ are four minor lineages, with the genus Charitodoron recognized as sister group to all other Mitridae. The deepwater family Pyramimitridae shows a sister relationship to the Mitridae, with high support for a Pyramimitridae + Mitridae clade. Our results recover the monophyly of the Costellariidae, which form a wellsupported clade that also includes Ptychatractidae, Columbariinae, and Volutomitridae, but not Mitridae. Most derived and diverse amongst Costellariidae are species of Vexillum, characterized by a bow-shaped, multicuspidate rachidian tooth. Several previously unrecognized deep-water costellariid lineages are revealed. Their members retain some plesiomorphies – in particular a tricuspidate rachidian tooth – that makes them morphologically intermediate between ptychatractids and Vexillum. The taxa of Ptychatractidae included in the analysis are not monophyletic, but form three well-supported, unrelated groupings, corresponding respectively to Ceratoxancus + Latiromitra, Exilia, and Exiliodea. None of them shows an affinity to Pseudolividae.
Gomon, Martin F., Struthers, CARL D., 2015, Three new species of the Indo-Pacific fish genus Hime (Aulopidae, Aulopiformes), all resembling the type species H. japonica (Günther 1877), Zootaxa, 4044, 3, 371
doi: 10.11646/zootaxa.4044.3.3 Résumé [+] [-]Descriptions of three new species of the aulopid genus Hime from the central and western Pacific and presumably the easternmost Indian Ocean are presented. Hime surrubea sp. nov., confined to the Hawaiian Island region, has been misidentified in species accounts and faunal lists as H. japonica and although resembling it is separable from that species by its shorter caudal peduncle, slightly larger head, larger eye, especially relative to head size, and slightly smaller pectoral and pelvic fins. Hime capitonis sp. nov. is known conclusively only from seamounts off the southern tip of New Caledonia and Vanuatu, and is distinguishable by its distinctively large head (32.3–35.6% SL) and eyes (orbital diameter 10.8–13.0% SL) and relatively few scales between the anus and anal fin origin (7–9). The Indonesian H. caudizoma sp. nov. is so far known from only 8 specimens, acquired in markets in southeastern Lombok and presumably caught nearby in what would be regarded the eastern reaches of the Indian Ocean. The species is recognisable by its dorsal fin of rather uniform moderate height with nearly straight distal margin and 17 rather than 16 rays, none of which is filamentous in either sex, the second penultimate ray rather than anterior rays the longest in males. Like the other two described here, H. caudizoma has among the largest head and eyes of the family. Observations on the dorsal fin form and other features of H. microps Parin & Kotlyar, 1989 are provided based on a large male specimen collected at Rapa Iti, Austral Islands and a re-evaluation of the original description.
Macpherson, Enrique, Robainas-Barcia, Aymee, 2015, Species of the genus Galathea Fabricius, 1793 (Crustacea, Decapoda, Galatheidae) from the Indian and Pacific Oceans, with descriptions of 92 new species, Zootaxa, 3913, 1, 1-335
doi: 10.11646/zootaxa.3913.1.1 Résumé [+] [-]The genus Galathea is one of the most speciose and unwieldy groups in the family Galatheidae. The examination of more than 9000 specimens of 144 species collected in the Indian and Pacific Oceans using morphological and molecular characters, has revealed the existence of 92 new species. The specimens examined during this study were obtained by various French expeditions supplemented by other collections from various sources, and including the type specimens of some previously described species. Most of the new species are distinguished by subtle but constant morphological differences, which are in agreement with molecular divergences of the mitochondrial markers COI and/or 16S rRNA. Here, we describe and illustrate the new species and redescribe some previously described species for which earlier accounts are not sufficiently detailed for modern standards. Furthermore we include a dichotomous identification key to all species in the genus from the Indian and Pacific Oceans.
Pante, Eric, France, Scott C., Gey, Delphine, Cruaud, Corinne, Samadi, Sarah, 2015, An inter-ocean comparison of coral endemism on seamounts: the case of Chrysogorgia, Journal of Biogeography, 42, 10, 1907-1918
- Tenerio, Manuel J., 2015, Notes on Profundiconus smirna (Bartsch & Rehder, 1943) with description of a new species: Profundiconus smirnoides sp. nov. (Gastropoda, Conilithidae), Xenophora Taxonomy, 7, 3-15
Chan, Benny K.K., Chen, Hsi-Nien, Rodriguez Moreno, Paula A., Corbari, Laure, 2016, Diversity and biogeography of the little known deep-sea barnacles of the genus Waikalasma Buckeridge, 1983 (Balanomorpha: Chionelasmatoidea) in the Southwest Pacific, with description of a new species, Journal of Natural History, 50, 47-48, 2961-2984
Chen, Chien-Lin, Goy, Joseph W., Bracken-Grissom, Heather D., Felder, Darryl L., Tsang, Ling Ming, Chan, Tin-Yam, 2016, Phylogeny of Stenopodidea (Crustacea : Decapoda) shrimps inferred from nuclear and mitochondrial genes reveals non-monophyly of the families Spongicolidae and Stenopididae and most of their composite genera, Invertebrate Systematics, 30, 5, 479-490
Ekins, Merrick, Erpenbeck, Dirk, Wörheide, Gert, Hooper, John N. A., 2016, Staying well connected – Lithistid sponges on seamounts, Journal of the Marine Biological Association of the United Kingdom, 96, 2, 437-451
Günther, Roland, 2016, Angaria neocaledonica n. sp. - A New Species of Angariidae from New Caledonia (Mollusca: Gastropoda), Conchylia, 46, 1-4, 89-96
Résumé [+] [-]Angaria neocaledonica n. sp. is described form New Caledonia and compared to Angaria delphinus, A. turpini, A. formosa and A. sphaerula. Further observations on the Angariidae of New Caledonia and the Chesterfield Plateau are made
Marshall, Bruce A., 2016, New species of Venustatrochus Powell, 1951 from New Zealand, and new species of Falsimargarita Powell, 1951 and a new genus of the Calliostomatidae from the southwest Pacific, with comments on some other calliostomatid genera (Mollusca: Gastropoda), Molluscan Research, 36, 2, 119-141
- Monsecour, Kevin, Monsecour, David, Héros, Virginie, Strong, Ellen E., Bouchet, Philippe, 2016, Deep-water Columbellidae (Mollusca: Gastropoda) from New Caledonia, Mémoires du Muséum national d’Histoire naturelle, 29, 208, 291-362
Sumner-Rooney, Lauren, Sigwart, Julia D., McAfee, Jenny, Smith, Lisa, Williams, Suzanne T., 2016, Repeated eye reduction events reveal multiple pathways to degeneration in a family of marine snails, Evolution, 70, 10, 2268-2295
doi: 10.1111/evo.13022 Résumé [+] [-]Eye reduction occurs in many troglobitic, fossorial, and deep-sea animals but there is no clear consensus on its evolutionary mechanism. Given the highly conserved and pleiotropic nature of many genes instrumental to eye development, degeneration might be expected to follow consistent evolutionary trajectories in closely related animals. We tested this in a comparative study of ocular anatomy in solariellid snails from deep and shallow marine habitats using morphological, histological, and tomographic techniques, contextualized phylogenetically. Of 67 species studied, 15 lack retinal pigmentation and at least seven have eyes enveloped by surrounding epithelium. Independent instances of reduction follow numerous different morphological trajectories. We estimate eye loss has evolved at least seven times within Solariellidae, in at least three different ways: characters such as pigmentation loss, obstruction of eye aperture, and “lens” degeneration can occur in any order. In one instance, two morphologically distinct reduction pathways appear within a single genus, Bathymophila. Even amongst closely related animals living at similar depths and presumably with similar selective pressures, the processes leading to eye loss have more evolutionary plasticity than previously realized. Although there is selective pressure driving eye reduction, it is clearly not morphologically or developmentally constrained as has been suggested by previous studies.
Tenorio, Manuel J., Castelin, Magalie, 2016, Genus Profundiconus Kuroda, 1956 (Gastropoda, Conoidea): Morphological and molecular studies, with the description of five new species from the Solomon Islands and New Caledonia, European Journal of Taxonomy, 173, 1-45
doi: 10.5852/ejt.2016.173 Résumé [+] [-]The genus Profundiconus Kuroda, 1956 is reviewed. The morphological characters of the shell, radular tooth and internal anatomy of species in Profundiconus are discussed. In particular, we studied Profundiconus material collected by dredging in deep water during different scientific campaigns carried out in the Solomon Islands, Madagascar, Papua New Guinea and New Caledonia. We reconstructed a phylogeny of 55 individuals based on partial mitochondrial cox1 gene sequences. The phylogeny shows several clades containing individuals that do not match any of the known species of Profundiconus based on their shell and radular morphologies, and are introduced here as five new species: Profundiconus maribelae sp. nov. from the Solomon Islands; P. virginiae sp. nov. from Chesterfield Plateau (New Caledonia); P. barazeri sp. nov. from Chesterfield Plateau and the Grand Passage area (New Caledonia); P. puillandrei sp. nov. from Norfolk Ridge (New Caledonia), Kermadec Ridge (New Zealand) and possibly Balut Island (Philippines); and P. neocaledonicus sp. nov. from New Caledonia. Furthermore, Profundiconus teramachii forma neotorquatus (da Motta, 1984) is raised to specific status as P. neotorquatus (da Motta, 1984).
Tomašových, Adam, Schlögl, Ján, Kaufman, Darrell S., Hudáčková, Natália, 2016, Temporal and bathymetric resolution of nautiloid death assemblages in stratigraphically condensed oozes (New Caledonia), Terra Nova, 28, 4, 271-278
doi: 10.1111/ter.12218 Résumé [+] [-]Cephalopod shells can be affected by postmortem transport and biostratigraphic condensation, but direct estimates of the temporal and spatial resolutions of cephalopod assemblages are missing. Amino acid racemisation calibrated by 14C demonstrates a centennial-scale time averaging (<500 years) of Nautilus macromphalus in sediment-starved, epi- and mesobathyal pelagic environments. The few shells that are thousands of years old are highly degraded. The median occurrence of dead shells is at 445 m depth, close to the 300–400 m depth where living N. macromphalus are most abundant. Therefore, dead shells of this species accumulate at a centennial temporal resolution and with excellent bathymetric fidelity. Dead Nautilus shells exist for only a few hundred years on the seafloor, in contrast to the biostratigraphically condensed mixture of extant foraminifers and foraminifers that went extinct during the Pleistocene. Cephalopod shells that do not show any signs of early diagenetic cementation are unlikely to be biostratigraphically condensed.
Castelin, Magalie, Williams, Suzanne T., Buge, Barbara, Maestrati, Philippe, Lambourdière, Josie, Ozawa, Tomowo, Utge, José, Couloux, Arnaud, Alf, Axel, Samadi, Sarah, 2017, Untangling species identity in gastropods with polymorphic shells in the genus Bolma Risso, 1826 (Mollusca, Vetigastropoda), European Journal of Taxonomy, 288, 1-21
doi: 10.5852/ejt.2017.288 Résumé [+] [-]In shelled molluscs, assigning valid species names to independent evolutionary lineages can be a difficult task. Most original descriptions are based on empty shells and the high levels of variation in shape, color and pattern in some groups can make the shell a poor proxy for species-level identification. The deep-sea gastropod turbinid genus Bolma is one such example, where species-level identification based on shell characters alone is challenging. Here, we show that in Bolma both traditional and molecular taxonomic treatments are associated with a number of pitfalls that can lead to biased inferences about species diversity. Challenges derive from the few phylogenetically informative characters of shells, insufficient information provided in original descriptions and sampling artefacts, which at the molecular level in spatially fragmented organisms can blur distinctions between genetically divergent populations and separate species. Based on a comprehensive dataset combining molecular, morphological and distributional data, this study identified several cases of shell-morphological plasticity and convergence. Results also suggest that what was thought to be a set of distinct, range-restricted species corresponds instead to a smaller number of more widespread species. Overall, using an appropriate sampling design, including type localities, allowed us to assign available names to evolutionarily significant units.
- Cecalupo, Alberto, Perugia, Ivan, 2017, Cerithiopsidae and Newtoniellidae (Gastropoda: Triphoroidea) from New Caledonia, Western Pacific, Visaya, Suppl. 7, 1-175
- Chan, Benny K.K., Corbari, Laure, Rodriguez Moreno, Paula A., Tsang, Ling Ming, 2017, Molecular phylogeny of the lower acorn barnacle families (Bathylasmatidae, Chionelasmatidae, Pachylasmatidae and Waikalasmatidae)(Cirripedia: Balanomorpha) with evidence for revisions in family classification, Zoological Journal of the Linnean Society, 180, 542-555
Cohen, Bernard L., Pisera, Andrzej, 2017, Crinoid phylogeny: new interpretation of the main Permo-Triassic divergence, comparisons with echinoids and brachiopods, and EvoDevo interpretations of major morphological variations, Biological Journal of the Linnean Society, 120, 38-53
Fedesov, Alexander E., Puillandre, Nicolas, Herrmann, Manfred, Dgebuadze, Polina, Bouchet, Philippe, 2017, Phylogeny, systematics, and evolution of the family Costellariidae (Gastropoda: Neogastropoda), Zoological Journal of the Linnean Society, 179, 3, 541-626
doi: 10.1111/zoj.12431 Résumé [+] [-]The neogastropod family Costellariidae is a large and successful group of carnivorous marine mollusks that encompasses about 475 living species. Costellariids are most diverse in the tropical Indo-Pacific at a depth interval of 0–200 m, where they are largely represented by numerous species commonly assigned to the genus Vexillum. The present work expands the taxon sampling of a previous phylogeny of the mitriform gastropods to resolve earlier problematic relationships, and thus establish a robust framework of the family, revise its taxonomy, and uncover major trends in the evolution of costellariid morphology. A multicuspidate rachidian is shown to have appeared at least twice in the evolutionary history of the family: it is regarded as an apomorphy of the primarily Indo-Pacific Vexillum–Austromitra–Atlantilux lineage, and has evolved independently in the Nodicostellaria–Mitromica lineage of the western hemisphere. The genera Ceratoxancus and Latiromitra are transferred from the Ptychatractidae to the Costellariidae. Tosapusia, Protoelongata, and Pusia are ranked as full genera, the latter with the three subgenera Pusia, Ebenomitra, and Vexillena. Vexillum (Costellaria) and Zierliana are treated as synonyms of Vexillum. The replacement name Suluspira is proposed for Visaya Poppe, Guillot de Suduiraut & Tagaro, 2006, non Ahyong, 2004 (Crustacea). We introduce four new genera, Alisimitra, Costapex, Turriplicifer, and Orphanopusia, and characterize their anatomy; 14 new species, mostly from deep water in the Indo-Pacific, are described in the genera Tosapusia, Alisimitra, Costapex, and Pusia. At least two species of Costapex gen. nov. have been collected from sunken wood.
- Fehse, Dirk, 2017, Contributions to the knowledge of the Triviidae, XXIX -J. New Triviidaefrom the Solomones, Visaya, Suppl. VIII, 65-94
- Fehse, Dirk, 2017, Contributions to the knowledge of the Triviidae, XXIX-G. New Triviidae from Tonga Islands, Visaya, Suppl. VIII, 5-30
- Fehse, Dirk, 2017, Contributions to the knowledge of the Triviidae, XXIX-M. New Triviidae from the New Caledonia and Comments on Dolin's (2001) 'Les Triviidae de l'Indo-Pacifique', Visaya, Suppl. VIII, 150-239
Mah, Christopher L., 2017, Overview of the Ferdina-like Goniasteridae (Echinodermata: Asteroidea) including a new subfamily, three new genera and fourteen new species, Zootaxa, 4271, 1, 1-72
- Oliver, Joan Daniel, Rolán, Emilio, 2017, A new species of the genus Benthonellania (Gastropoda, Rissooidea) from the Cape Verde archipelago - Una nueva especie del género Benthonellania (Gastropoda, Rissooidea) del archipiélago de Cabo Verde, Iberus, 35, 1, 47-57
Puillandre, Nicolas, Tenorio, Manuel J., 2017, A question of rank: DNA sequences and radula characters reveal a new genus of cone snails (Gastropoda: Conidae), Journal of Molluscan Studies, 83, 2, 200-210
Verheye, Marie L., Backeljau, Thierry, D'Udekem D'Acoz, Cédric, 2017, Locked in the icehouse: Evolution of an endemic Epimeria (Amphipoda, Crustacea) species flock on the Antarctic shelf, Molecular Phylogenetics and Evolution, 114, 14-33
- Vilvens, Claude, 2017, New species and new records of Chilodontidae (Gastropoda: Vetigastropoda: Seguenzioidea) from the Pacific Ocean, Novapex, 18, HS 11, 1-67
- Baba, Keiji, 2018, Chirostylidae of the Western and Central Pacific: Uroptychus and a new genus (Crustacea: Decapoda: Anomura). Tropical Deep-Sea Benthos, Mémoires du Muséum National d'Histoire Naturelle, Muséum national d'Histoire naturelle, 30, 212
Liste des documents
- Cahier(s) de campagne
- Accès restreint (3)
Liste des photos
|Collecte : 129 photos||Organisme : 70 photos||Substrat : 7 photos||Débris organiques : 6 photos||Sur le pont : 14 photos|
Liste des participants
- Linder, Alberto (Systématique des stylasters, Museu de Zoologia, Universidade de São Paulo)
- Collecte - Tri
- Lozouet, Pierre (Malacologie, Muséum national d'Histoire naturelle)
- Collecte - Tri
- Pisera, Andrzej (Systématique des spongiaires, Polska Akademia Nau)
- Collecte - Tri
- Richer de Forges, Bertrand (Carcinologie - Benthologie, Institut de Recherche pour le Développement)
- Chef de mission
- Samadi, Sarah (Biologie évolutive, Institut de Recherche pour le Développement)
- Collecte - Tri
- Schlacher, Thomas (Ecologie, Faculty of Science, Health, Education and Engineering)
- Collecte - Tri