Une campagne orgnanisée par :
- MNHN - Muséum national d'Histoire naturelle
- IRD - Institut de Recherche pour le Développement
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Chefs de mission
Date et lieu de départFri Sep 02 00:00:00 CEST 2011 Port-Vila (Vanuatu)
Date et lieu d'arrivéeWed Sep 28 00:00:00 CEST 2011 Nouméa (Nouvelle-Calédonie)
|Etape||Date de départ||Date d'arrivée||Départ||Arrivée||Navire|
|Leg 1||Fri Sep 02 00:00:00 CEST 2011||Sun Sep 11 00:00:00 CEST 2011||Nouméa (Nouvelle-Calédonie)||Nouméa (Nouvelle-Calédonie)||Alis|
|Leg 2||Mon Sep 12 00:00:00 CEST 2011||Thu Sep 29 00:00:00 CEST 2011||Nouméa (Nouvelle-Calédonie)||Nouméa (Nouvelle-Calédonie)||Alis|
La campagne EXBODI, initialement prévue au Vanuatu, s'est finalement déroulée en Nouvelle-Calédonie. Les objectifs étaient de complèter les échantillonages dans les eaux néo-calédoniennes ainsi que d'étudier la biologie et la diversité des organismes associés aux bois coulés. Lire la suite
Travaux effectués :
161 opérations ont été réalisées dont 71 traits de chalut à perche et 90 dragages à la drague Warèn.
Bamber, Roger N., 2013, Deep-water Pycnogonida from recent cruises to Papua New Guinea and Melanesia, with an appendix of new records from Polynesia and descriptions of five new species, Zoosystema, 35, 2, 195-214
doi: 10.5252/z2013n2a5 Résumé [+] [-]Deep-sea pycnogonid material collected during the N/O Alis Campagnes SalomonBOA 3 to the Solomon Islands in 2007, Terasses to New Caledonia in 2008, Tarasoc to the Tuamoto Archipelago and Tarava Seamounts in 2009, Biopapua to Papua New Guinea in 2010, and Exbodi to New Caledonia in 2011, has been analyzed. This includes the first collection of deep-sea pycnogonids from the waters of Papua New Guinea. The material includes 71 specimens from 14 species in seven genera. Most are frequently-recorded species of the genus Colossendeis, but there are also four species new to science, Ascorhynchus quartogibbus n. sp., Cilunculus roni n. sp., Phoxichilidium alis n. sp., Pycnogonum papua n. sp. A specimen from New Caledonia, identified by Stock in 1997 as Pycnogonum occa Loman, 1908, but not figured or described, has been re-examined, and found also to be a distinct species, Pycnogonum staplesi n. sp.
Galil, Bella S., 2013, The deep water box crab Calappa karenae (Crustacea: Decapoda: Brachyura): a new record from Melanesia, Marine Biodiversity Records, 6, e76, 1-2
doi: http://dx.doi.org/10.1017/S175526721300050X Résumé [+] [-]Calappa karenae, is here documented from Loyalty Islands, Melanesia, based on a specimen collected in September 2011. This rare deep water box crab was previously known only from a pair of specimens collected in off Guam, Micronesia, a distance of 4000 km away.
Ho, Hsuan-Ching, Chen, Wei-Jen, 2013, DNA sequences and morphological variation in Lophiodes iwamotoi Ho, Séret & Shao, 2011 based on new material from New Caledonia, Zootaxa, 3682, 4, 594-598
doi: 10.11646/zootaxa.3682.4.12 Résumé [+] [-]Iwamoto’s anglerfish Lophiodes iwamotoi is recorded from New Caledonia for the first time. Study of molecular features further support the validity of the species. Moloecular sequence data from the cytochrome c oxidase subunit-I and Rhodopsin loci, along with morphological variation are provided, as well as information on its fresh coloration.
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.
Messing, Charles G., 2013, A revision of the genus Atelecrinus PH Carpenter (Echinodermata: Crinoidea), Zootaxa, 3681, 1, 1-43
doi: 10.11646/zootaxa.3681.1.1 Résumé [+] [-]The unusual bathyal comatulid crinoid genus Atelecrinus is widespread in the Atlantic and tropical Pacific Oceans and currently includes three recognized species. A re-assessment based on examination of new and existing specimens requires establishment of two new genera and five new species, and returns three junior synonyms to species-level status. Paratelecrinus is erected to accommodate Atelecrinus wyvilli PH Carpenter, A. conifer AH Clark, A. cubensis PH Carpenter, P. orthotriremis, new species, P. amenouzume new species, P. laticonulus new species and P. telo new species. Adelatelecrinus is erected to accommodate Atelecrinus sulcatus AH Clark and Adelatelecrinus vallatus new species. Atelecrinus retains A. balanoides PH Carpenter and A. helgae AH Clark, which restricts the genus to the Atlantic. In both Paratelecrinus and Adelatelecrinus, the basals articulate with the centrodorsal via ligament bundles anchored in deep ring-like interradial pits that project into the centrodorsal cavity, whereas in Atelecrinus the centrodorsal rim has shallow interradial concavities and attaches to the basals via a tight junction with no obvious ligament bundles. The spoon-shaped aboral fossa in the basals of Paratelecrinus appears to be unique among articulate crinoids and differs from the smooth fossa found in both Atelecrinus and Adelatelecrinus. New material extends the range of the family to the Indian Ocean. A few species are now known from enough specimens to identify some ontogenetic and distributional variations. Proximal ray morphology varies substantially with size in P. cubensis and P. orthotriremis. A. balanoides generally occurs in deeper water in the Lesser Antilles than in the Bahamas and Strait of Florida, while P. orthotriremis occurs in shallower water in the Lesser Antilles and deeper in the Bahamas.
Ng, Peter K.L., Richer de Forges, Bertrand, 2013, Samadinia longispina, a new genus and species of deep-sea spider crab from the western Pacific, and a new species of Rochinia A. Milne-Edwards, 1875, from Papua New Guinea (Crustacea: Brachyura: Majoidea: Epialtidae), Zootaxa, 3718, 4, 357
doi: 10.11646/zootaxa.3718.4.5 Résumé [+] [-]A new genus, Samadinia n. gen., and new species, Samadinia longispina n. sp., of deep-water epialtid spider crab is described from French Polynesia and New Caledonia. The new genus is superficially similar to Rochinia A. Milne-Edwards, 1875, but can be distinguished by having the dorsal surface of the carapace covered with small, rounded granules (versus with long spines or strong tubercles), well developed hepatic and lateral branchial spines (versus relatively shorter and weaker), a prominently constricted male thoracic sternite 4 (versus relatively broader with less prominent or without median constriction) and a proportionally broader male abdomen. A new species of Rochinia, R. granulosa n. sp., is also described from Papua New Guinea. It is easily distinguished from congeners its small adult size, the presence of numerous relatively large granules on the carapace and a relatively short hepatic spine.
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.
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).
Lemer, Sarah, Buge, Barbara, Bemis, Amanda, Giribet, Gonzalo, 2014, First molecular phylogeny of the circumtropical bivalve family Pinnidae (Mollusca, Bivalvia): Evidence for high levels of cryptic species diversity, Molecular Phylogenetics and Evolution, 75, 11-23
Takano, Tsuyoshi, Kano, Yasunori, 2014, Molecular phylogenetic investigations of the relationships of the echinoderm-parasite family Eulimidae within Hypsogastropoda (Mollusca), Molecular Phylogenetics and Evolution, 79, 258-269
doi: 10.1016/j.ympev.2014.06.021 Résumé [+] [-]The gastropod family Eulimidae has attracted considerable attention as one of the most diverse groups of parasitic molluscs in terms of number of species and ranges of body plans and parasitic strategies. However, the phylogenetic position of the family has not been established within the Hypsogastropoda and this has hampered the inference of ancestral states in the evolution of the morphology and parasitic strategies. Here we present Bayesian and maximum likelihood phylograms of Hypsogastropoda based on nuclear and mitochondrial loci (18S and 28S rRNA, Histone H3, COI and 16S rRNA) and a better taxonomic sampling than in previous molecular analyses, to determine the position of Eulimidae. The resulting trees suggest Vanikoridae as the sister group of Eulimidae; the two families are collectively placed in the newly redefined superfamily Vanikoroidea, with Truncatelloidea and (potentially paraphyletic) Rissooidea as closest relatives. Vanikorids are protandrous hermaphrodites as are many eulimids and are essentially carnivorous, differing from the mostly gonochoristic and herbivorous/detritivorous Truncatelloidea and Rissooidea. The mode of feeding may have a phylogenetic signal also within Eulimidae, where radula-less species constitute a robust clade. Other new findings include a close affinity of the submarine-cave Pickworthiidae to Cerithioidea and a terminal position of Nystiellidae within the paraphyletic Epitoniidae.
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.
Bitner, Aleksandra, 2015, Checklist of recent brachiopod species collected during the Terrasses and Exbodi cruises in the New Caledonian region, SW Pacific, ZooKeys, 537, 33-50
- 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.
Fricke, Ronald, 2015, Centrodraco fidelis (Draconettidae), a new deepwater dragonet species from the southern Loyalty Ridge, southwestern Pacific Ocean, Cybium, 39, 3, 211-217
Résumé [+] [-]Centrodraco fidelis sp. nov. is described from three specimens, which were collected on the southern Loyalty Ridge (New Caledonian EEZ) during the oceanographic cruise EXBODI. The species is characterised by: 14 rays in the second dorsal fin; 13 rays in the anal fin; first dorsal fin with the second spine elongate and filamentous in the male; second dorsal fin very low, without filaments in the male; opercular spine 1.8-2.4 in subopercular spine; body slightly compressed; body depth 7.4-8.5% of SL; body width 7.7-8.8% of SL; pectoral fin short, not reaching to anus when adpressed; pectoral fin length 9.9-11.8% of SL; male body colour pattern pale, with a single grey spot on the beginning of the lower lateral line; filament in first dorsal fin pale, fin with a large basal dark blotch; the male anal fin with three dark blotches. The new species is compared with allied species. A revised key to the genera and species of Draconettidae presented.
Fricke, Ronald, Teitelbaum, Antoine, Wantiez, Laurent, 2015, Twenty-one new records of fish species (Teleostei) from the New Caledonian EEZ (south-western Pacific Ocean), Marine Biodiversity Records, 8, e123
doi: 10.1017/S1755267215000986 Résumé [+] [-]New records of fish species are reported from New Caledonia, including Polyipnus aquavitus Baird, 1971 (Sternoptychidae), Porogadus melampeplus (Alcock, 1896) (Ophidiidae), Hoplichthys citrinus Gilbert 1905 (Hoplichthyidae), Plectrogenium nanum Gilbert 1905 (Plectrogeniidae), Lioscorpius trifasciatus Last, Yearsley & Motomura 2005 (Setarchidae), Neomerinthe megalepis Fowler 1938 and Phenacoscorpius megalops Fowler 1938 (Scorpaenidae), Ocosia apia Poss & Eschmeyer, 1975 (Tetrarogidae), Hoplostethus atlanticus Collett 1889 (Trachichthyidae), Zenion longipinnis Kotthaus, 1970 (Zeniontidae), Plectranthias foresti Fourmanoir 1977, Plectranthias pelicieri Randall & Shimizu, 1994, Plectranthias rubrifasciatus Fourmanoir & Randall, 1979 and Rabaulichthys squirei Randall & Walsh, 2010 (Serranidae), Synagrops philippinensis (Gu¨nther 1880) (Acropomatidae), Stegastes insularis Allen & Emery 1995 (Pomacentridae), Cirrhilabrus rubrimarginatus Randall 1992 (Labridae), Pteropsaron neocaledonicus Fourmanoir & Rivaton, 1979 (Percophidae), Centrodraco ornatus (Fourmanoir & Rivaton, 1979) and Draconetta xenica Jordan & Fowler 1903 (Draconettidae), and Acanthurus maculiceps (Ahl 1923) (Acanthuridae). A record of Plectropomus maculatus (Bloch 1790) (Serranidae) from Grande Terre, New Caledonia is confirmed. This paper also includes new depth records of Zenion longipinnis, Plectranthias rubrifasciatus, Synagrops philippinensis, Centrodraco ornatus and Draconetta xenica.
Houart, Roland, 2015, Four new species of Muricidae (Gastropoda) from New Caledonia, Papua New Guinea and Indonesia, The Nautilus, 129, 4, 143-155
Résumé [+] [-]Four new species of Muricidae are described from New Caledonia, Papua New Guinea and Indonesia and compared with related species. One Timbellus species was collected in New Caledonia. Two other species are described from Papua New Guinea, respectively in Chicopinnatus and Dermomurex. The fourth species, also belonging in Chicopinnatus, originates from Indonesia.
Lozouet, Pierre, Galindo, Lee Ann, 2015, Resolution of the confused classification of some Miocene Nassariidae, and reappraisal of their paleobiodiversity on the French Atlantic seaboard, Archiv für Molluskenkunde, 144, 1, 31-50
Ng, Peter K.L., Richer de Forges, Bertrand, 2015, Revision of the spider crab genus Maja Lamarck, 1801 (Crustacea: Brachyura: Majoidea: Majidae), with descriptions of seven new genera and 17 new species from the Atlantic and Indo-West Pacific, Raffles Bulletin of Zoology, 63, 110-225
Résumé [+] [-]The taxonomy of spider crabs of the genus Maja Lamarck, 1801, is revised, and a total of 36 species in 10 genera are now recognised from the eastern Atlantic, Mediterranean and Indo-West Pacific. The present revision describes seven genera and 17 species as new. Two genera previously synonymised under Maja: Paramaya De Haan, 1837, and Paramaja Kubo, 1936, are here treated as valid taxa. The confused nomenclature of Cancer cornutus Linnaeus, 1758, is resolved, and the name replaces Maja capensis Ortmann, 1894, and Mamaia queketti Stebbing, 1908. All genera and species are diagnosed and figured, and keys are provided for their identification.
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
- Wicksten, Mary K., Guinot, Danièle, 2015, Camouflage: carrying behaviour, decoration behaviour, and other modalities of concealment in Brachyura, 583-638
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
Galindo, Lee Ann, Puillandre, Nicolas, Utge, José, Lozouet, Pierre, Bouchet, Philippe, 2016, The phylogeny and systematics of the Nassariidae revisited (Gastropoda, Buccinoidea), Molecular Phylogenetics and Evolution, 99, 337-353
- Kantor, Yuri I., Fedosov, Alexander E., Puillandre, Nicolas, Bouchet, Philippe, 2016, Integrative taxonomy approach to Indo-Pacific Olividae: new species revealed by molecular and morphological data, Ruthenica, 26, 2, 123-143
Ng, Peter K.L., Castro, Peter, 2016, Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea), Zootaxa, 4209, 1, 1-182
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.
Taylor, John D., Glover, Emily A., Smith, Lisa, Ikebe, Chiho, Williams, Suzanne T., 2016, New molecular phylogeny of Lucinidae: increased taxon base with focus on tropical Western Atlantic species (Mollusca: Bivalvia), Zootaxa, 4196, 3, 381-398
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).
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.
- 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
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.
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
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
Fedosov, Alexander, Puillandre, Nicolas, Herrmann, Manfred, Kantor, Yuri, Oliverio, Marco, Dgebuadze, Polina, Modica, Maria Vittoria, Bouchet, Philippe, 2018, The collapse of Mitra: molecular systematics and morphology of the Mitridae (Gastropoda: Neogastropoda), Zoological Journal of the Linnean Society, 20, 1-85
Liste des documents
- Devis et factures
- Accès restreint (3)
- Documents administratifs et financiers
- Accès restreint (1)
- Documents logistiques
- Accès restreint (3)
- Dossier(s) de préparation de mission
- Accès restreint (15)
- Google Earth
- Stations EXBODI, Google Earth
- Rapport(s) de mission
- Fiche de valorisation de la campagne EXBODI soumise à la commission FLOTTE en 2015
- Fiche ROSCOP
- Accès restreint (3)
Liste des photos
|Collecte : 599 photos||Organisme : 595 photos||Substrat : 36 photos||Débris organiques : 141 photos||Détritus : 3 photos||Sur le pont : 10 photos|
Liste des participants
Par étape :
- Leg 1 (Fri Sep 02 00:00:00 CEST 2011 - Sun Sep 11 00:00:00 CEST 2011) Navire : Alis
- Albenga, Laurent ( Muséum national d'Histoire naturelle)
- Collecte - Tri
- Boisselier, Marie-Catherine (Systématique moléculaire, Centre National de la Recherche Scientifique)
- Collecte - Tri
- Hourdez, Stephane (Biologie évolutive des annélides, Centre National de la Recherche Scientifique)
- Collecte - Tri
- Samadi, Sarah (Biologie évolutive, Institut de Recherche pour le Développement)
- Chef de mission
- Thubaut, Justine (Biologie évolutive, bois coulés, Muséum national d'Histoire naturelle)
- Collecte - Tri
- Leg 2 (Mon Sep 12 00:00:00 CEST 2011 - Thu Sep 29 00:00:00 CEST 2011) Navire : Alis
- Chen, Wei-jen (Ichtyologie, National Taiwan Ocean University)
- Collecte - Tri
- Corbari, Laure (Carcinologie, bois coulés, Muséum national d'Histoire naturelle)
- Chef de mission
- Galindo, Lee Ann (Systématique moléculaire, Muséum national d'Histoire naturelle)
- Collecte - Tri
- Lozouet, Pierre (Malacologie, Muséum national d'Histoire naturelle)
- Collecte - Tri
- Pante, Eric (Systématique des Cnidaires, Université de la Rochelle)
- Collecte - Tri
- Richer de Forges, Bertrand (Carcinologie - Benthologie, Muséum national d'Histoire naturelle)
- Collecte - Tri