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Prénom : Pei-Chun
Liste des participations aux campagnes accessibles
- NanHai 2014
- (Mon Dec 30 00:00:00 CET 2013 - Sun Jan 12 00:00:00 CET 2014)
Bibliographie (55) [+] [-]
Exporter les bibliographies
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Abdelkrim J., Aznar-cormano L., Fedosov A.E., Kantor Y.I., Lozouet P., Phuong M.A., Zaharias P. & Puillandre N. 2018. Exon-Capture-Based Phylogeny and Diversification of the Venomous Gastropods (Neogastropoda, Conoidea), in Vidal N.(Ed.), Molecular Biology and Evolution 35(10): 2355-2374. DOI:10.1093/molbev/msy144
Résumé [+] [-]Transcriptome-based exon capture methods provide an approach to recover several hundred markers from genomic DNA, allowing for robust phylogenetic estimation at deep timescales. We applied this method to a highly diverse group of venomous marine snails, Conoidea, for which published phylogenetic trees remain mostly unresolved for the deeper nodes. We targeted 850 protein coding genes (678,322 bp) in ca. 120 samples, spanning all (except one) known families of Conoidea and a broad selection of non-Conoidea neogastropods. The capture was successful for most samples, although capture efficiency decreased when DNA libraries were of insufficient quality and/or quantity (dried samples or low starting DNA concentration) and when targeting the most divergent lineages. An average of 75.4% of proteins was recovered, and the resulting tree, reconstructed using both supermatrix (IQ-tree) and supertree (Astral-II, combined with the Weighted Statistical Binning method) approaches, are almost fully supported. A reconstructed fossil-calibrated tree dates the origin of Conoidea to the Lower Cretaceous. We provide descriptions for two new families. The phylogeny revealed in this study provides a robust framework to reinterpret changes in Conoidea anatomy through time. Finally, we used the phylogeny to test the impact of the venom gland and radular type on diversification rates. Our analyses revealed that repeated losses of the venom gland had no effect on diversification rates, while families with a breadth of radula types showed increases in diversification rates, thus suggesting that trophic ecology may have an impact on the evolution of Conoidea.
Campagnes accessibles citées (23) [+] [-]ATIMO VATAE, AURORA 2007, BIOPAPUA, CEAMARC-AA, CONCALIS, Restreint, DongSha 2014, EXBODI, GUYANE 2014, ILES DU SALUT, INHACA 2011, KARUBENTHOS 2012, KAVIENG 2014, MAINBAZA, NORFOLK 2, NanHai 2014, PANGLAO 2005, PAPUA NIUGINI, Restreint, SALOMONBOA 3, TAIWAN 2013, TERRASSES, Restreint
Codes des collections associés: IM (Mollusques) -
Bitner M.A., Cohen B.L., Long S.L., Richer de forges B. & Saito M.A. 2007. Gyrothyris williamsi sp. nov. and inter-relationships of some taxa from waters around New Zealand and the southern oceans (Rhynchonelliformea: Terebratelloidea). Earth and Environmental Science Transactions of the Royal Society of Edinburgh 98(3-4). DOI:10.1017/S1755691008075142
Résumé [+] [-]This paper describes a terebratelloid articulate brachiopod, Gyrothyris williamsi sp. nov., based on 95 specimens from seamounts on the Lord Howe Rise, Coral Sea, SW Pacific Ocean. The new species is attributed to Gyrothyris on the basis of (a) morphological and growth trajectory similarities; (b) phylogenetic analyses of an alignment of DNA sequence (similar to 2900-sites) obtained from nuclear-encoded small- and large-subunit ribosomal RNA genes (SSU and LSO; and (c) the presence of a distinctive, two-part deletion in the LSU gene. It is distinguished morphologically from Gyrothyris mawsoni and its subspecies by both internal and external morphology and by its isolated geographical distribution, which extends the patchy, known range of this genus to an area some 2000 km north of its previous northern limit around New Zealand. Phylogenetic analyses of the rDNAs and of mitochondrial cox1 gene sequences (663 sites) confirm previous indications that the New Zealand endemic terebratelloid genera form a clade (Neothyris (Calloria, Gyrothyris, Terebratella), but the position of Terebratella with respect to Calloria and Gyrothyris remains weakly established. These sequences disagree inexplicably about the closeness of the relationship between Neothyris parva and N. lenticidaris. Analyses of the first sequences from Calloria variegata, a species restricted to the Hauraki Gulf, New Zealand, are consistent with the possibility that it originated locally, and recently, from C inconspicua. Magellania venosa from S. America/Falklands joins with Antarctic Magellaninia fragilis and M. joubini to form an rDNA clade that excludes Terebratalia as the putative sister-group of the New Zealand terebratelloid clade. The cox1(but not the rDNA) sequences of the New Zealand clade pass a test for clock-like rates of evolution, and maximum likelihood pairwise distances suggest that if genetic isolation between the ancestor of Antarctic Magellania and the last common ancestor of the New Zealand terebratelloid clade was initiated by separation of the Antarctic and New Zealand plates similar to 90 Mya, isolation from M. venosa was initiated earlier, perhaps similar to 145 Mya. However, in the simple phylogenctic reconstruction presented here from cox1 sequences, S. American and Antarctic Magellania spp. do not yield a well-supported clade, perhaps because of differences in base composition.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IB (Bryozoaires Brachiopodes) -
Bitner M.A. & Logan A. 2016. Recent Brachiopoda from the Mozambique-Madagascar area, western Indian Ocean. Zoosystema 38(1): 5-41. DOI:10.5252/z2016n1a1
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IB (Bryozoaires Brachiopodes) -
Bouchet P., Héros V., Le goff A., Lozouet P. & Maestrati P. 2001. Atelier biodiversité LIFOU 2000 Grottes et récifs coralliens. Rapport de mission, MNHN, Paris, 1-110
Campagnes accessibles citées (1) [+] [-] -
Bouchet P., Héros V., Lozouet P. & Maestrati P. 2008. A quarter-century of deep-sea malacological exploration in the South and West Pacific: Where do we stand? How far to go?, in Héros V., Cowie R.H. & Bouchet P.(Eds), Tropical Deep-Sea Benthos 25. Mémoires du Muséum national d'Histoire naturelle 196:9-40, ISBN:978-2-85653-614-8
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.
Campagnes accessibles citées (63) [+] [-]AURORA 2007, AZTEQUE, BATHUS 1, BATHUS 2, BATHUS 3, BATHUS 4, BENTHAUS, BERYX 11, BERYX 2, BIOCAL, BIOGEOCAL, BOA0, BOA1, BORDAU 1, BORDAU 2, CALSUB, CHALCAL 1, CHALCAL 2, CONCALIS, CORAIL 2, CORINDON 2, GEMINI, HALICAL 1, HALIPRO 1, HALIPRO 2, KARUBAR, LAGON, LITHIST, LUMIWAN 2008, MUSORSTOM 1, MUSORSTOM 10, MUSORSTOM 2, MUSORSTOM 3, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, MUSORSTOM 7, MUSORSTOM 8, MUSORSTOM 9, NORFOLK 1, NORFOLK 2, PALEO-SURPRISE, PANGLAO 2005, SALOMON 1, SALOMON 2, SALOMONBOA 3, SANTO 2006, SMCB, SMIB 1, SMIB 10, SMIB 2, SMIB 3, SMIB 4, SMIB 5, SMIB 6, SMIB 8, SMIB 9, TAIWAN 2000, TAIWAN 2001, TAIWAN 2002, TAIWAN 2004, VAUBAN 1978-1979, VOLSMAR
Codes des collections associés: IM (Mollusques) -
Bouchet P., Héros V., Lozouet P., Maestrati P. & Von cosel R. 2011. The marine Molluscs of Santo, in Bouchet P., Le guyader H. & Pascal O.(Eds), The natural history of Santo. Patrimoines Naturels 70:421-431
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IM (Mollusques) -
Castelin M., Lambourdiere J., Boisselier M.C., Lozouet P., Couloux A., Cruaud C. & Samadi S. 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.
Campagnes accessibles citées (5) [+] [-]
Codes des collections associés: IM (Mollusques) -
Castelin M., Puillandre N., Lozouet P., Sysoev A., Richer de forges B. & Samadi S. 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.
Campagnes accessibles citées (16) [+] [-]AZTEQUE, BATHUS 2, BATHUS 3, BERYX 11, BIOCAL, CHALCAL 2, HALIPRO 2, LITHIST, NORFOLK 1, NORFOLK 2, SMIB 10, SMIB 3, SMIB 4, SMIB 5, SMIB 8, TERRASSES
Codes des collections associés: IM (Mollusques) -
Castelin M., Lorion J., Brisset J., Cruaud C., Maestrati P., Utge J. & Samadi S. 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.
Campagnes accessibles citées (11) [+] [-]AURORA 2007, CONCALIS, EBISCO, MAINBAZA, MIRIKY, NORFOLK 1, NORFOLK 2, PANGLAO 2004, PANGLAO 2005, SALOMON 2, TERRASSES
Codes des collections associés: IM (Mollusques) -
Dayrat B., Goulding T.C., Khalil M., Lozouet P. & Tan S.H. 2018. Systematic revision one clade at a time: A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata). RAFFLES BULLETIN OF ZOOLOGY: 24
Résumé [+] [-]In the context of a complete revision of the Onchidiidae, it is shown here that Onchidium vaigiense Quoy & Gaimard, 1825 and Onchidium marmoratum Lesson, 1831 belong to a clade that is separate from all other onchidiid genera and so a new genus is described: Marmaronchis Dayrat & Goulding, new genus. Marmaronchis slugs are characterised by a unique combination of anatomical traits: intestinal loops of type I, rectal gland present, accessory penial gland present. Marmaronchis vaigiensis and M. marmoratus are cryptic externally and internally but are delineated as distinct species with both mitochondrial (COI, 16S, 12S) and nuclear (ITS2, 28S, H3) DNA sequences. Onchidium ambiguum Semper, 1880 and O. steenstrupii Semper, 1882 are proposed as new junior synonyms of M. vaigiensis. Marmaronchis slugs primarily live in the rocky intertidal and, unlike many onchidiids from Southeast Asia, they are not found inside mangroves. Both Marmaronchis species are geographically sympatric and can even be found at the same stations, but Marmaronchis vaigiensis is widely distributed, from the Nicobar Islands (Bay of Bengal) all the way to Vanuatu and the Philippines, while M. marmoratus is only known from New Ireland and Madang (Papua New Guinea). Several new geographical records are provided: Bali and Sulawesi (Indonesia) and Vanuatu for M. vaigiensis; Madang (Papua New Guinea) for M. marmoratus. The diversity of Marmaronchis slugs is compared to other onchidiid genera.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IM (Mollusques) -
Delavenne J., Keszler L., Castelin M., Lozouet P., Maestrati P. & Samadi S. 2019. Deep-sea benthic communities in the largest oceanic desert are structured by the presence of polymetallic crust. Scientific Reports 9(1): 6977. DOI:10.1038/s41598-019-43325-0
Résumé [+] [-]Based on the specimens collected during three deep-sea cruises, and deposited at the Muséum National d’Histoire Naturelle (MNHN) in Paris, we analysed the diversity of benthic communities within the EEZ of French Polynesia. The literature and the MNHN database allowed us to inventory 471 species of invertebrates, among which 169 were newly described. We mainly found data for Mollusca, Crustacea, Brachiopoda and Crinoidea. We also found samples from other taxa, which still remain unidentified within the collections of the MNHN. Although this inventory is incomplete, we demonstrate that the deep waters of French Polynesia host unique benthic communities and endemic species. Using diversity and multivariate analyses, we show that the deep-sea benthic communities are structured by depth, habitats, geography and also by the presence of polymetallic crust. Furthermore, by focusing on the molluscs of the central area of French Polynesia, we show that the spectrum of shell size differs among deep-sea habitats. Specifically, shells tend to be smaller on encrusted seamounts than on island slopes. Together with the size range of organisms, low abundance, rarity and endemism designate these habitats as sensitive. These results should thus be taken into account in the evaluation of the expected impact of mining activities on biological communities.
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IE (Échinodermes), IM (Mollusques), IU (Crustacés) -
Delavenne J., Keszler L., Castelin M., Lozouet P., Maestrati P. & Samadi S. 2019. Deep-sea benthic communities in the largest oceanic desert are structured by the presence of polymetallic crust. Scientific Reports 9(1): 6977. DOI:10.1038/s41598-019-43325-0
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IU (Crustacés) -
Dettai A., Adamowizc S.J., Allcock L., Arango C.P., Barnes D.K., Barratt I., Chenuil A., Couloux A., Cruaud C., David B., Denis F., Denys G., Díaz A., Eléaume M., Féral J.P., Froger A., Gallut C., Grant R., Griffiths H.J., Held C., Hemery L.G., Hosie G., Kuklinski P., Lecointre G., Linse K., Lozouet P., Mah C., Monniot f., Norman M.D., O’hara T., Ozouf-costaz C., Piedallu C., Pierrat B., Poulin E., Puillandre N., Riddle M., Samadi S., Saucède T., Schubart C., Smith P.J., Stevens D.W., Steinke D., Strugnell J.M., Tarnowska K., Wadley V. & Ameziane N. 2011. DNA barcoding and molecular systematics of the benthic and demersal organisms of the CEAMARC survey. Polar Science 5(2): 298-312. DOI:10.1016/j.polar.2011.02.002
Campagnes accessibles citées (1) [+] [-] -
Duperron S., Lorion J., Samadi S., Gros O. & Gaill F. 2009. Symbioses between deep-sea mussels (Mytilidae: Bathymodiolinae) and chemosynthetic bacteria: diversity, function and evolution. Comptes Rendus Biologies 332(2-3): 298-310. DOI:10.1016/j.crvi.2008.08.003
Résumé [+] [-]Mussels of the subfamily Bathymodiolinae thrive around chimneys emitting hot fluids at deep sea hydrothermal vents, as well as at cold seeps and on sunken organic debris (sunken wood, whale falls). Despite the absence of light-driven primary production in these deep-sea ecosystems, mussels succeed reaching high biomasses in these harsh conditions thanks to chemosynthetic, carbon-fixing bacterial symbionts, located in their gill tissue. Since the discovery of mussel symbioses about three decades ago our knowledge has increased, yet new findings are published regularly regarding their diversity, role and evolution. This article attempts to summarize current knowledge about symbiosis in Bathymodiolinae, focusing on mussel species for which information is available regarding both hosts and symbionts. Moreover, new data obtained from small mussels inhabiting sunken woods around the Philippines are provided. Indeed, mussel species from organic falls remain poorly studied compared to their vent and seep relatives despite their importance for the understanding of the evolution of symbiosis in the subfamily Bathymodiolinae. To cite this article: S. Duperron et al., C. R. Biologies 332 (2009). (C) 2008 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IM (Mollusques) -
Fassio g., Bouchet p., Lozouet p., Modica m.v., Russini v., Schiaparelli s. & Oliverio m. 2021. Becoming a limpet: An ‘intermittent limpetization’ process driven by host features in the kleptoparasitic gastropod family Capulidae. Molecular Phylogenetics and Evolution 155: 107014. DOI:https://doi.org/10.1016/j.ympev.2020.107014
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IM (Mollusques) -
Galindo L.A., Puillandre N., Utge J., Lozouet P. & Bouchet P. 2016. The phylogeny and systematics of the Nassariidae revisited (Gastropoda, Buccinoidea). Molecular Phylogenetics and Evolution 99: 337-353. DOI:10.1016/j.ympev.2016.03.019
Résumé [+] [-]Nassariidae are a group of scavenging, predominantly marine, snails that are diversified on soft bottoms as well as on rocky shores, and are the subject of numerous research papers in ecology, ecotoxicology or paleontology. A weak and/or apparently continuous variation in shell characters has resulted in an intimidating taxonomy, with complex synonymy lists. Over 1320 extant nominal species have been described, of which 442 are currently regarded as valid. Above species level, the state of the art is equally hazy, with four subfamilies and twelve genera currently accepted, and many other names in the graveyard of synonymy. A molecular analysis based on three mitochondrial (COI, 16S, 12S) and two nuclear (28S, H3) markers was conducted. Our dataset includes 218 putative nassariid species, comprising 9 of the 12 valid genera, and 25 nominal genera represented by their type species. The monophyly of the Nassariidae as classically construed is not confirmed. Species of Antillophos, Engoniophos, Phos, Nassaria, Tomlinia and Anentome (formerly considered Buccinidae) are included inside the Nassariidae clade. Within the Nassariinae, the tree unexpectedly demonstrates that species from the Atlantic and the Indo-Pacific form different clades which represent several independent diversification events. Through an integrative approach, the reconstruction of ancestral states was addressed for eight characters supposedly informative for taxonomy. Using numerous fossil calibration points, Nassariidae appear to have originated 120 MYA ago in Atlantic temperate waters during the Lower Cretaceous. Our results have a profound impact on nassariid taxonomy, especially with regard to the validity of subfamily- and genus-level names.
Campagnes accessibles citées (19) [+] [-]ATIMO VATAE, AURORA 2007, BIOPAPUA, CONCALIS, EBISCO, EXBODI, INHACA 2011, KARUBENTHOS 2012, LIFOU 2000, MAINBAZA, MIRIKY, PAKAIHI I TE MOANA, PANGLAO 2004, PANGLAO 2005, SALOMON 2, SALOMONBOA 3, SANTO 2006, TARASOC, TERRASSES
Codes des collections associés: IM (Mollusques) -
Grandperrin R., Farman R., Lorance P., Jomessy T., Hamel P., Laboute P., Labrosse P., Richer de forges B., Seret B. & Virly S. 1997. Campagne HALIPRO 2 de chalutage exploratoire profonds dans le sud de la zone économique de Nouvelle-Calédonie (R.V. Tangaroa 4-28 novembre 1996). ZoNéCo, 151 pp.
Résumé [+] [-]The exploratory bottorn trawling survey HALIPRO 2 was carried out from 4 to 28 November 1996 on board the New Zealand research vessel Tangaroa of NIWA (National Institut ofWater and Atrnospheric Research Ltd). It was aimed at identification of deep fishery resources over the Norfolk Ridge and the southern part of the Loyalty Ridge. This zone, the area of which is 73000 square km, was previously rnapped during the seabed rnapping survey ZoNéCo 1. A trawl similar to the one used by the New Zealand commercial deep bottom fishing boats was used. Amongst 35 persons on board, 17 were scientists from different countries with different fields of research. A total of 3755 nautical miles were covered and 106 hauls were made. The environment was studied through temperature and salinity profils down to 1500 m and CUITent records down to 300 ffi. The presence of alfonsino (Beryx splerulens) was confirmed over the summits of the seamounts where this species was exploited by bottom longlining from 1988 to 1991. Hauls made over slopes and plains did not allow the catch of any specimen of orange roughy (Hoplostethus atlanticus). Hard and rough bottoms on the summits and flanks of the seamounts make awkward the use of bottom trawls. HALIPRO 2 showed the high species diversity of the fauna (275 species of fish belonging to 101 families). In particular, 42 different species of shark and ray were collected of which 40% are new to science. Many samples were collected for further analysis. This survey will no doubt remain a perfect exemple of a fruitful collaboration with New Zealand.
Campagnes accessibles citées (1) [+] [-] -
Hughes L.E. & Lowry J.K. 2015. A review of the world Cyphocarididae with description of three new species (Crustacea, Amphipoda, Lysianassoidea). Zootaxa 4058(1): 1-40. DOI:10.11646/zootaxa.4058.1.1
Campagnes accessibles citées (6) [+] [-]
Codes des collections associés: IU (Crustacés) -
Héros V., Lozouet P., Maestrati P., Cosel R.V., Brabant D. & Bouchet P. 2007. Mollusca of New Caledonia, in Payri C.E. & Richer de forges B.(Eds), Compendium of marine species from New Caledonia : second edition. Documents scientifiques et techniques II7:199-254
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IM (Mollusques) -
Kantor Y.I., Lozouet P., Puillandre N. & Bouchet P. 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).
Campagnes accessibles citées (12) [+] [-]ATIMO VATAE, BIOCAL, BIOGEOCAL, BIOPAPUA, EXBODI, MUSORSTOM 8, NORFOLK 2, PANGLAO 2005, SALOMON 1, SANTO 2006, TAIWAN 2004, TERRASSES
Codes des collections associés: IM (Mollusques) -
Lombrail B. 2002. Les Turridae (Mollusca: Gastropoda) des formations récifales de Nouvelle-Calédonie: stratégies de développement larvaire et répartition dans trois sites repères. Diplôme de Maitrise de Biologie des Populations et Écosystèmes, Université Pierre et Marie Curie, Paris, 42 pp.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lorenz F. 2002. New worldwide Cowries. Descriptions of new taxa and revisions of selected groups of living Cypraeidae (Mollusca: Gastropoda) 19. ConcBooks, Hackenheim, Germany, 292 pp. ISBN:3-925919-59-7
Résumé [+] [-]This book describes taxa of cowries, some of which are new to science; others have to date been known only by taxonomically invalid forma-names: valid species: aenigma, colligata, deforgesi. New species by revision and promoting of rank: valid species: aenigma, colligata, deforgesi. New species by revision and lifting of rank: boucheti, gilvella, johnsonorum. New subspecies: caurica samoensis, citrina dauphinensis, coronata debruini, decipiens suprasinum, exmouthensis abrolhoensis, e. magnifica, jeaniana thalamega, katsuae guidoi, maculifera martybealsi, m. scindata, mappa admirabilis, teramachii polyphemus, langfordi cavatoensis, stolida brianoi, subteres violacincta, teres janae, and new subspecies by taxonomic validation: bregeriana pervelata, cinerea brasilensis, connelli peelae, cribraria australiensis, exmouthensis rottnestensis, fimbriata marquesana, fuscodentata grohorum, f sphaerica, mappa aliwalensis, pellucens panamensis, porteri nigromaculata, rosselli latistoma, r. satiata, scurra mundula, teramachii neocaledonica. Taxonomically valid names of other authors are elevated to species rank: exmouthensis, geographica, pellucens, and in some cases, to subspecies rank: cribraria zadela, fuscorubra gondwanalandensis, teres alveolus. Some genera and species-complexes are discussed in detail: the Leporicypraea mappacomplex, some species of the deep-water genus Nesiocypraea, the Western Australian members of Cribrarula, the genus Cypraeovula and its zoogeography, Erronea caurica and its subspecies, and the Blasicrura (Talostolida) teres species-complex. The distributions of all new taxa and related species-complexes are shown. In an illustrated checklist, all species, subspecies and commonly used forma-names of the living Cypraeidae are listed, including the new species and subspecies described herein.
Campagnes accessibles citées (21) [+] [-]BATHUS 1, BATHUS 2, BATHUS 3, BATHUS 4, BERYX 11, BORDAU 1, BORDAU 2, CALSUB, CHALCAL 1, CHALCAL 2, LAGON, LIFOU 2000, LITHIST, MUSORSTOM 10, MUSORSTOM 4, MUSORSTOM 6, MUSORSTOM 8, NORFOLK 1, SMIB 4, SMIB 8, VOLSMAR
Codes des collections associés: IM (Mollusques) -
Lorenz F. 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.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lorenz F. & Fehse D. 2009. The living Ovulidae: a manual of the families of allied cowries: Ovulidae, Pediculariidae and Eocypraeidae. ConchBooks, Hackenheim, 651 pp. ISBN:978-3-939767-21-3 3-939767-21-2
Campagnes accessibles citées (29) [+] [-]BATHUS 1, BATHUS 3, BATHUS 4, BENTHAUS, BERYX 11, BORDAU 1, BORDAU 2, CALSUB, CHALCAL 2, CORAIL 2, CORINDON 2, EBISCO, KARUBAR, LAGON, MD32 (REUNION), MONTROUZIER, MUSORSTOM 2, MUSORSTOM 5, MUSORSTOM 6, MUSORSTOM 7, MUSORSTOM 8, MUSORSTOM 9, NORFOLK 1, NORFOLK 2, Restreint, Restreint, SMIB 8, TAIWAN 2000, VOLSMAR
Codes des collections associés: IM (Mollusques) -
Lorenz F. 2012. Nesiocypraea midwayensis kontiki n. ssp., a new subspecies from the eastern Pacific (Gastropoda: Cypraeidae). Conchylia 42(1-4): 83-85
Résumé [+] [-]Nesiocypraea midway ens is kontiki n. ssp. Is described from eastern Polynesia. It differs from the nominate subspecies by a more pyriform instead of oval shape, more numerous teeth, a less rostrate posterior extremity, and coarser and more distinct dorsal pattern.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lorenz F. & Puillandre N. 2015. Conus hughmorrisoni, a new species of cone snail from New Ireland, Papua New Guinea (Gastropoda: Conidae). European Journal of Taxonomy 129: 1-15. DOI:10.5852/ejt.2015.129
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lorion J., Duperron S., Gros O., Cruaud C. & Samadi S. 2009. Several deep-sea mussels and their associated symbionts are able to live both on wood and on whale falls. Proceedings of the Royal Society B: Biological Sciences 276(1654): 177-185. DOI:10.1098/rspb.2008.1101
Résumé [+] [-]Bathymodiolin mussels occur at hydrothermal vents and cold seeps, where they thrive thanks to symbiotic associations with chemotrophic bacteria. Closely related genera Idas and Adipicola are associated with organic falls, ecosystems that have been suggested as potential evolutionary 'stepping stones' in the colonization of deeper and more sulphide-rich environments. Such a scenario should result from specializations to given environments from species with larger ecological niches. This study provides molecular-based evidence for the existence of two mussel species found both on sunken wood and bones. Each species specifically harbours one bacterial phylotype corresponding to thioautotrophic bacteria related to other bathymodiolin symbionts. Phylogenetic patterns between hosts and symbionts are partially congruent. However, active endocytosis and occurrences of minor symbiont lineages within species which are not their usual host suggest an environmental or horizontal rather than strictly vertical transmission of symbionts. Although the bacteria are close relatives, their localization is intracellular in one mussel species and extracellular in the other, suggesting that habitat choice is independent of the symbiont localization. The variation of bacterial densities in host tissues is related to the substrate on which specimens were sampled and could explain the abilities of host species to adapt to various substrates.
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IM (Mollusques), IU (Crustacés) -
Lorion J., Buge B., Cruaud C. & Samadi S. 2010. New insights into diversity and evolution of deep-sea Mytilidae (Mollusca: Bivalvia). Molecular Phylogenetics and Evolution 57(1): 71-83. DOI:10.1016/j.ympev.2010.05.027
Résumé [+] [-]Bathymodiolinae mussels have been used as a biological model to better understand the evolutionary origin of faunas associated with deep-sea hydrothermal vents and cold seeps. Most studies to date, however, have sampled with a strong bias towards vent and seep species, mainly because of a lack of knowledge of closely related species from organic falls. Here we reassess the species diversity of deep-sea mussels using two genes and a large taxon sample from the South-Western Pacific. This new taxonomic framework serves as a basis for a phylogenetic investigation of their evolutionary history. We first highlight an unexpected allopatric pattern and suggest that mussels usually reported from organic falls are in fact poorly specialized with regard to their environment. This challenges the adaptive scenarios proposed to explain the diversification of the group. Second, we confirm that deep-sea mussels arose from organic falls and then colonized hydrothermal vents and cold seeps in multiple events. Overall, this study constitutes a new basis for further phylogenetic investigations and a global systematic revision of deep-sea mussels. (C) 2010 Elsevier Inc. All rights reserved.
Campagnes accessibles citées (7) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lorion J. & Samadi S. 2010. Species richness, sampling bias and phylogenetics in deep-sea mussels. Cahiers de Biologie marine 51: 435-439
Campagnes accessibles citées (4) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lorion J., Kiel S., Faure B., Kawato M., Ho S.Y., Marshall B.A., Tsuchida S., Miyazaki J.I. & Fujiwara Y. 2013. Adaptive radiation of chemosymbiotic deep-sea mussels. Proceedings of the Royal Society B: Biological Sciences 280(1770): 20131243-20131243. DOI:10.1098/rspb.2013.1243
Résumé [+] [-]Adaptive radiations present fascinating opportunities for studying the evolutionary process. Most cases come from isolated lakes or islands, where unoccupied ecological space is filled through novel adaptations. Here, we describe an unusual example of an adaptive radiation: symbiotic mussels that colonized island-like chemosynthetic environments such as hydrothermal vents, cold seeps and sunken organic substrates on the vast deep-sea floor. Our time-calibrated molecular phylogeny suggests that the group originated and acquired sulfur-oxidizing symbionts in the Late Cretaceous, possibly while inhabiting organic substrates and long before its major radiation in the Middle Eocene to Early Oligocene. The first appearance of intracellular and methanotrophic symbionts was detected only after this major radiation. Thus, contrary to expectations, the major radiation may have not been triggered by the evolution of novel types of symbioses. We hypothesize that environmental factors, such as increased habitat availability and/or increased dispersal capabilities, sparked the radiation. Intracellular and methanotrophic symbionts were acquired in several independent lineages and marked the onset of a secondwave of diversification at vents and seeps. Changes in habitat type resulted in adaptive trends in shell lengths (related to the availability of space and energy, and physiological trade-offs) and in the successive colonization of greater water depths.
Campagnes accessibles citées (7) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lourenço W.R. 2014. The genus Grosphus Simon, 1880 in South-Western Madagascar, with the description of a new species (Scorpiones, Buthidae). Zoosystema 36(3): 631-645. DOI:10.5252/z2014n3a5
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: RS (Arachnides : Scorpionidae) -
Lourenço W.R. 2016. Scorpions from the Mitaraka Massif in French Guiana. II. Description of a new species of Ananteris Thorell, 1891 (Scorpiones: Buthidae). Comptes Rendus Biologies 339: 214-221. DOI:10.1016/j.crvi.2016.04.002
Résumé [+] [-]A new remarkable species belonging to the genus Ananteris Thorell, 1891 (Buthidae) is described from the Mitaraka Massif in French Guiana, a site located near the borders of French Guiana, Brazil, and Suriname. The description of this new species brings further evidence about the biogeographic patterns of distribution presented by most species of the genus Ananteris, which are highly endemic in most biogeographic realms of South America, including the Tepuys and Inselberg Massifs.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: RS (Arachnides : Scorpionidae) -
Lourenço W.R. 2016. Scorpions from the Mitaraka Massif in French Guiana: Description of one new genus and species (Scorpiones: Chactidae). Comptes Rendus Biologies 339: 141-146. DOI:10.1016/j.crvi.2016.02.003
Résumé [+] [-]A new genus and species, Spinochactas mitaraka gen. n., sp. n. (Chactidae) are described from the Mitaraka Massif in French Guiana, a site located near the borders of French Guiana, Brazil, and Suriname. The description of the new genus and species brings further evidence of the biogeographic pattern of distribution presented by some elements of the family Chactidae endemic to the Tepuys or to the Inselberg formations of South America. ß 2016 Acade´ mie des sciences. Published by Elsevier Masson SAS. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: RS (Arachnides : Scorpionidae) -
Lourenço W.R. 2018. The scorpions from the Mitaraka Massif in French Guiana (Scorpiones: Buthidae, Chactidae). Zoosystema 40(3): 367-374. DOI:10.5252/zoosystema2018v40a14
Résumé [+] [-]A synopsis is proposed for all scorpion species collected, up to present, in the Mitaraka Massif in French Guiana, a site located near to the borders of French Guiana, Brazil and Suriname. One new species, Guyanochactas touroulti n. sp. (Chactidae) is described. The description of the new species brings further evidence to the biogeographic pattern of distribution presented by some elements of the family Chactidae endemic to the Tepuys or the Inselberg formations of South America.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: RS (Arachnides : Scorpionidae) -
Lowry J.K. & Stoddart H.E. 1993. Crustacea Amphipoda: Lysianassoids from Philippine and Indonesian waters, in Crosnier A.(Ed.), Résultats des campagnes MUSORSTOM 10. Mémoires du Muséum national d'Histoire naturelle 156:55-109, ISBN:2-85653-206-3
Résumé [+] [-]Ten genera and fourteen species of lysianassoid amphipods are reported from Philippine and Indonesian waters. Nine of these are new species (Aristias coriolis, A. verdensis, Eucallisoma barnardi, Figorella corindon, Onesimoides castellatus, 0. mindoro, Paracentromedon pacificus, Pseudamaryllis andresi and Trischizostoma crosnieri). Five of the genera (Eucallisoma, Figorella, Paracentromedon, Pseudamaryllis and Trischizostoma) are new records for the south-east Asian area. Only four species (Cyphocaris anonyx Boeck, 1871, Ichnopus wardi Lowry & Stoddart, 1992, Onesimoides castellatus and 0. mindoro) are recorded from both areas.
Campagnes accessibles citées (5) [+] [-]
Codes des collections associés: IU (Crustacés) -
Lowry J.K. & Stoddart H.E. 1994. Crustacea Amphipoda: Lysianassoids from the tropical western South Pacific Ocean, in Crosnier A.(Ed.), Résultats des campagnes MUSORSTOM 12. Mémoires du Muséum national d'Histoire naturelle 161:127-223, ISBN:2-85653-212-8
Résumé [+] [-]There are currently 20 lysianassoid amphipod species known from the tropical western South Pacific Ocean. We report on 32 species from the area, including one new genus (Coriolisa) and 19 new species (Aristias thio, A. uokonia, Bathyamaryllis ouvea, Clepidecrella tropicalis, Coriolisa novacaledonia, Cyphocaris bellona, Hippomedon vao, Kerguelenia koutoumo, K. lifou, Lepidepecreella sarcelle, Onesimoides abyssalis, Socarnes rurutu, S. tiendi, S. tuscarora, Socarnopsis honiara, S. tandai, Trischizostoma richeri, Tryphosella ama and T. oupi). This brings the total species known from the area to 46.
Campagnes accessibles citées (8) [+] [-]
Codes des collections associés: IU (Crustacés) -
Lowry J.K. & Dempsey K. 2006. The giant deep-sea scavenger genus Bathynomus (Crustacea, Isopoda, Cirolanidae) in the Indo-West Pacific, in Richer de forges B. & Justine J.L.(Eds), Tropical Deep-Sea Benthos 24. Mémoires du Muséum national d'Histoire naturelle 193:163-192, ISBN:2-85653-585-2
Résumé [+] [-]Based on new material from the western Pacific and Indian Oceans, the deep-sea scavenging genus Bathynomus is revised. Six species are redescribed: Bathynomus affinis Richardson, 1910 (range extended to the Arafura and Timor Seas), B. decemspinosus Shih, 1972, B. doederleini Ortman, 1894 (range extended to San Bernardino Strait, Philippine Islands), B. immanis Bruce, 1986 (range extended to Astrolabe Bay, Bismarck Sea), B. kapala Griffin, 1975 (range extended to off the Great Barrier Reef, Coral Sea) and B. pelor Bruce, 1986. Bathynomus propinquus Richardson, 1910 is considered to be a nomen dubium. Six new species are described: B. brucei n. sp. from off the Great Barrier Reef, Coral Sea; B. bruscai n. sp. from off the Great Barrier Reef, Coral Sea and Astrolabe Bay, Bismarck Sea; B. crosnieri n. sp. from off Madagascar, western Indian Ocean; B. keablei n. sp. from off the Malabar Coast, Arabian Sea; B. kensleyi n. sp. from the South China Sea, the Sulu Sea and the Coral Sea; B. richeri n. sp. from off New Caledonia, plus Bathynomus sp. from the Gulf of Aden. Bathynomus giganteus A. Milne Edwards, 1879 is reported for the first time from the east coast of the United States. Two distinct groups occur in Bathynomus, a lineage of giant species which mature at about 150 mm length and a lineage of supergiant species which can grow to 500 mm in length. The greatest diversity of Bathynomus occurs between latitudes 20°N and 20°S on the Indian-Australian plate. Outlying species occur on plates in the western North Pacific and the western Atlantic.
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IU (Crustacés) -
Lowry J.K. & Stoddart H.E. 1995. A new species of Didymochelia from New Caledonia (Crustacea: Amphipoda: Didymocheliidae). Bulletin du Muséum national d'Histoire naturelle, 4° série, Section A 17(1-2): 193-200
Résumé [+] [-]Didymocheliid amphipods are extremely rare. Didymochelia ledoyeri sp. nov. is described from New Caledonian material. It is only the fourth specimen collected and the third species described. This is the first record of the family outside the subantarctic area.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IU (Crustacés) -
Lowry j. k. & Stoddart h. e. 1992. A Revision of the genus Ichnopus (Crustacea: Amphipoda: Lysianassoidea: Uristidae). Records of the Australian Museum 44: 185-245
Résumé [+] [-]The uristid genus Ichnopus is revised and Glycerina included in its synonymy. A key is provided to the world species. Ichnopus pelagicus Schellenberg, I. pseudoserricrus Ledoyer, I. serricrus Walker, I. spinicornis Boeck, I. taurus Costa, (type species), I. tenuicornis (Haswell), I. teretis (Andres) and I. woodmasoni (Giles) are redescribed. The new species I. annasona, I. capricornus, I. caritus, I. comorensis, I. cribensis, I. malpatun, I. parriwi and I. wardi are described. Ichnopus nossibeensis Ledoyer is considered to be a synonym of I. pelagicus. Ichnopus macrobetomma Stebbing is considered to be an unrecognisable species. Two species groups are recognised: the I. spinicornis group, in which the ischium and carpus of gnathopod 1 are long and most species are pelagic, probably micropredators; and the I. taurus group, in which the ischium and carpus of gnathopod 1 are very long and most species are demersal scavengers. Ichnopus is considered to be . A tropical to warm temperate Indo-Pacific genus with some remnants in the Mediterranean and the eastern North Atlantic Ocean. The most primitive species in both groups are found in the Mediterranean Sea and the eastern North Atlantic. It appears that the modern genus had its origins in the old Tethyan fauna.
Campagnes accessibles citées (6) [+] [-]
Codes des collections associés: IU (Crustacés) -
Lozouet P. 1991. Mollusca Gastropoda : Eumitra récentes de la région néo-calédonienne et Charitodoron fossiles de l'Oligocène supérieur d'Aquitaine (Mitridae), in Crosnier A. & Bouchet P.(Eds), Résultats des campagnes MUSORSTOM 7. Mémoires du Muséum national d'Histoire naturelle 150:205-222, ISBN:2-85653-180-6
Résumé [+] [-]The first Recent species of Eumitra are described from deep-water in the New Caledonian region : E. caledonica sp. nov. (Southern New Caledonia), E. apheles sp. nov. (Northern New Caledonia), E. imbucata sp. nov. (Coral Sea, Lansdowne-Fairway) and E. richeri sp. nov. (Coral Sea, Mellish Reef). A SEM photograph of the radula is included. Fossil Eumitra are restricted to lower Miocene of New Zealand and Miocene/Pliocene of Australia. Dispersal is advocated to explain Eumitra distribution. For the first time fossil species from Upper Oligocene of Aquitaine Basin (Southwestern France) are referred to Charitodoron. Anatypical member of the Mitridae : C. tau:ini sp. Nov. And C. cancellatus (Saubade, 1969). The three Recent Charitodoron are confined to the bathyal zone of South Africa, fossil Oligocene species have been collected from a bathyal palaeocommunity. In spite of columellar similarities, peculiar development of columellar folds (Eumitra) or edentulous columella (Charitodoron), these two genera are probably not closely related. In a paleobiogeographic discussion two key events are cited to explain the beginning of many marine disjunctions : Upper Eocene/Lower Oligocene crisis and closing of Tethys in Upper Oligocene/Lower Miocene.
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lozouet P. & Plaziat J.C. 2008. Mangrove environments and molluscs Abatan river, Bohol and Panglao Islands, Central Philippines. ConchBooks, Hackenheim ISBN:978-3-939767-16-9
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lozouet P. 2009. A new Neritopsidae (Mollusca, Gastropoda, Neritopsina) from French Polynesia. Zoosystema 31(1): 189-198
Résumé [+] [-]Neritopsis richeri n. sp., the fourth Recent species of a group of "living fossil" molluscs, is described from the Austral Islands (French Polynesia). Most of the material was collected during the BENTHAUS cruise. This species differs from its congeners in teleoconch sculpture, which has I to 4 secondary cords in the interspaces between the primary cords. The spiral ribs are also weakly headed. In addition, and in contrast to the common species N. radula (Linnaeus, 1758), N. richeri it. sp. has a multispiral protoconch that implies a planktotrophic larval development. Its relationship to N. aqabaensis Bandel, 2007 described from an immature specimen is difficult to assess, the Sculpture of adults suspected to be N. aqabaensis being identical to that of N. radula, Neritopsis richeri n. sp. appears to be restricted to French Polynesia but possibly has been confused with N. radula in previous publications.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lozouet P. & Galindo L.A. 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. DOI:10.1127/arch.moll/1869-0963/144/031-050
Campagnes accessibles citées (4) [+] [-]
Codes des collections associés: IM (Mollusques) -
Lozouet P. & Krygelmans A. 2016. A new species of Indo-Pacific Modulidae (Mollusca: Caenogastropoda). Zootaxa 4103(2): 195-200. DOI:10.11646/zootaxa.4103.2.12
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IM (Mollusques) -
Moncada E., Lord A., Simone L.R.L., Adjei-boateng D., Bouchet P., Strong E.E., Bieler R. & Giribet G. 2022. Marine surf to freshwater: a molecular phylogeny of Donacidae (Bivalvia: Heterodonta). Invertebrate Systematics(36(11)): 984-1001
Résumé [+] [-]Donacidae is a commercially important family of heterodont bivalves and one of the few bivalve lineages that has successfully colonised brackish and fresh waters. However, to date, no phylogenetic hypothesis exists for this widely distributed group. Here we turn to molecular data from the nuclear and mitochondrial genomes and combine these with the extensive fossil record of donacids to propose an evolutionary hypothesis for the family. Our analyses strongly support the monophyly of Donacidae, including Galatea, Iphigenia and ‘Plebidonax’ deltoides, but render Donax paraphyletic. The subgenus Latona is therefore elevated to genus to accommodate a clade of Indo-Pacific species, while retaining Donax for a clade of mostly Atlantic and American Pacific species, and a few Indo-Pacific species. This latter clade is sister group to Galatea + Iphigenia. The diversification of Donacidae seems to be tightly connected to the opening of the North and South Atlantic Oceans in the Cretaceous, and to the closing of the Tethys Ocean during the Oligocene. Taxonomic actions: Latona columbella (Lamarck, 1818) comb. nov., L. deltoides (Lamarck, 1818) comb. nov., L. dysoni (Reeve, 1854) comb. nov., L. madagascariensis (W. Wood, 1828) comb. nov., L. semisulcata semigranosa (Dunker, 1877) comb. nov., L. spinosa (Gmelin, 1791) comb. nov., L. sordida (Hanley, 1845) comb. nov., L. siliqua (Römer, 1870) comb. nov., L.trifasciata (Linnaeus, 1758) comb. nov. and L. victoris (Fischer-Piette, 1942) comb. nov.Key
Campagnes accessibles citées (6) [+] [-]
Codes des collections associés: IM (Mollusques) -
Neusser T.P., Jörger K.M., Lodde-bensch E., Strong E.E. & Schrödl M. 2016. The unique deep sea—land connection: interactive 3D visualization and molecular phylogeny of Bathyhedyle boucheti n. sp. (Bathyhedylidae n. fam.)—the first panpulmonate slug from bathyal zones. PeerJ 4: e2738. DOI:10.7717/peerj.2738
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IM (Mollusques) -
Samadi S., Quéméré E., Lorion J., Tillier A., Cosel R.V., Lopez P., Cruaud C., Couloux A. & Boisselier-dubayle M.C. 2007. Molecular phylogeny in mytilids supports the wooden steps to deep-sea vents hypothesis. Comptes Rendus Biologies 330(5): 446-456. DOI:10.1016/j.crvi.2007.04.001
Résumé [+] [-]Molecular data were used to study the diversity of mytilids associated with sunken-woods sampled in the Solomon Islands and discuss the 'wooden steps to deep-sea vent' hypothesis proposed by Distel et al. First, COI data used in a barcoding approach confirm the presence of four distinct species. Analyses of the 18S rDNA and COI dataset then confirmed that these sunken-wood mytilids belonged to a monophyletic group including all species from deep-sea reducing environments. Finally, we analyzed the relationships within this monophyletic group that include the Bathymodiolinae using a COI dataset and a combined analysis of mitochondrial COI and ND4 genes and nuclear rDNA 18S and 28S. Our study supported the 'wooden steps to deep-sea vent' hypothesis: one of the sunken-wood species had a basal position within the Bathymodiolionae, and all described vent and seep mussels included in our analyses were derived taxa within Bathymodiolinae.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IM (Mollusques) -
Samadi S., Laure C., Lorion J., Hourdez S., Haga T., Dupont J., Boisselier M.C. & Richer de forges B. 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
Campagnes accessibles citées (15) [+] [-]AURORA 2007, BENTHAUS, BOA0, BOA1, BORDAU 1, BORDAU 2, EBISCO, NORFOLK 1, NORFOLK 2, PANGLAO 2005, SALOMON 2, SALOMONBOA 3, SANTO 2006, TARASOC, TERRASSES
Codes des collections associés: IA (Annélides, Polychètes et Sipunculides), IE (Échinodermes), IM (Mollusques), IU (Crustacés) -
Sammy de grave N., Pentcheff D., Ahyong S.T., Chan T., Crandall K.A., Dworschak P.C., Felder D.L., Feldmann R.M., Fransen C.H.J.M., Goulding L.Y.D., Lemaitre R., Low M.E.Y., Ng P.K., Schweitzer C.E., Tan S.H., Tshudy D. & Wetzer R.L. 2009. A classification of living and fossil genera of decapod crustaceans. Raffles Bulletin of Zoology suppl. 21: 1–109
Résumé [+] [-]We present an updated classification for the entire Crustacea Decapoda, listing all known families and genera organized by higher taxonomic groups and including estimates of the number of species in every genus. All taxonomic names are also linked to the verified literature in which they were described, the first compilation of its kind for the Decapoda. To arrive at this compilation, we began with the classification scheme provided by Martin & Davis (2001) for extant families,, updated the higher classification and included the fossil taxa. The resultant framework was then populated with the currently valid genera and an estimate of species numbers within each genus. Our resulting classification, spanning both extant (living) and fossil taxa, is the first comprehensive estimate of taxonomic diversity within the entire Decapoda. The classification consists of 233 families of decapods containing 2,725 genera and an estimated 17,635 species (including both extant and fossil species). Of the families in our classification, 53 are exclusively fossil, 109 contain both fossil and extant species, and 71 are extant only. The current estimate for extant species is 14,756, whereas 2,979 species are known exclusively as fossils.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IU (Crustacés) -
Schwabe E. & Lozouet P. 2006. Chitons (Mollusca, Polyplacophora) from Rapa, the southernmost island of Polynesia. Zoosystema 28(3): 617-633
Résumé [+] [-]The RAPA 2002 workshop permitted the first comprehensive collection of polyplacophorans from the island of Rapa (Austral Islands, South Pacific) to be made. The collection includes three genera and three species, two of the species being new to science. The isolation of Rapa may explain the uniqueness of this small polyplacophoran fauna. The two new species are: Leptochiton hiriensis n. sp. and Chiton (Rhyssoplax) rapaitiensis n. sp. The latter species, which is the most common (83% of the specimens), is a brooder. Leptochiton hiriensis n. sp. differs from congeneric species of the same size in the sculpture of the valves, which show concentric growth marks in the central area and concentrically arranged nodules in the head valve, postmucronal region of the tail valve and the lateral areas. Chiton (Rhyssoplax) rapaitiensis n. sp. is compared to the related species C. (R.) linsleyi (Burghardt, 1973), C (R.) rhynchotus (de Rochebrune, 1884), and C. (R.) maldivensis (E. A. Smith in Gardiner, 1903). In addition to its smaller size, the new species differs in tegmental sculpture and in the ornamentation of the dorsal girdle scale. Onithochiton lyellii (Sowerby, 1832), a species also known from the Gambier Islands and Pitcairn Islands, is restricted herein to the Polynesian region. In addition to the descriptions of the new species, characters relevant in identification of O. lyellii are described and illustrated for the first time in scanning electron micrographs.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IM (Mollusques) -
Stoddart H.E. & Lowry J.K. 2004. The deep-sea lysianassoid genus Eurythenes (Crustacea, Amphipoda, Eurytheneidae n. fam.). Zoosystema 26(3): 425-468
Résumé [+] [-]Eurythenes gryllus is redescribed based on the holotype of Gammarus gryllus Lichtenstein in Mandt, 1822; the holotype of Lysianassa magellanica H. Milne Edwards, 1848; and one of the specimens used by Lilljeborg (1865a) when establishing the genus Eurythenes. Eurythenes obesus (Chevreux, 1905), is redescribed and a neotype is established. New material of E. gryllus and E. obesus is recorded from Australasian waters. Eurythenes thurstoni n. sp. is described and Eurytheneidae n. fam. is established for this genus within the Lysianassoidea.
Campagnes accessibles citées (4) [+] [-]
Codes des collections associés: IU (Crustacés) -
Vacher J.P., Kok P.J., Rodrigues M.T., Lima J.D., Lorenzini A., Martinez Q., Fallet M., Courtois E.A., Blanc M., Gaucher P., Dewynter M., Jairam R., Ouboter P., Thébaud C. & Fouquet A. 2017. Cryptic diversity in Amazonian frogs: Integrative taxonomy of the genus Anomaloglossus (Amphibia: Anura: Aromobatidae) reveals a unique case of diversification within the Guiana Shield. Molecular Phylogenetics and Evolution 112: 158-173. DOI:10.1016/j.ympev.2017.04.017
Résumé [+] [-]Lack of resolution on species boundaries and distribution can hamper inferences in many fields of biology, notably biogeography and conservation biology. This is particularly true in megadiverse and undersurveyed regions such as Amazonia, where species richness remains vastly underestimated. Integrative approaches using a combination of phenotypic and molecular evidence have proved extremely successful in reducing knowledge gaps in species boundaries, especially in animal groups displaying high levels of cryptic diversity like amphibians. Here we combine molecular data (mitochondrial 16S rRNA and nuclear TYR, POMC, and RAG1) from 522 specimens of Anomaloglossus, a frog genus endemic to the Guiana Shield, including 16 of the 26 nominal species, with morphometrics, bioacoustics, tadpole development mode, and habitat use to evaluate species delineation in two lowlands species groups. Molecular data reveal the existence of 18 major mtDNA lineages among which only six correspond to described species. Combined with other lines of evidence, we confirm the existence of at least 12 Anomaloglossus species in the Guiana Shield lowlands. Anomaloglossus appears to be the only amphibian genus to have largely diversified within the eastern part of the Guiana Shield. Our results also reveal strikingly different phenotypic evolution among lineages. Within the A. degranvillei group, one subclade displays acoustic and morphological conservatism, while the second subclade displays less molecular divergence but clear phenotypic divergence. In the A. stepheni species group, a complex evolutionary diversification in tadpole development is observed, notably with two closely related lineages each displaying exotrophic and endotrophic tadpoles.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: RA (Reptiles & Amphibiens) -
Van der wal C., Ahyong S.T., Ho S.Y. & Lo N. 2017. The evolutionary history of Stomatopoda (Crustacea: Malacostraca) inferred from molecular data. PeerJ 5: e3844. DOI:10.7717/peerj.3844
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IU (Crustacés) -
Van der wal C., Ahyong S.T., Ho S.Y.W., Lins L.S.F. & Lo N. 2019. Combining morphological and molecular data resolves the phylogeny of Squilloidea (Crustacea : Malacostraca). Invertebrate Systematics. DOI:10.1071/IS18035
Résumé [+] [-]The mantis shrimp superfamily Squilloidea, with over 185 described species, is the largest superfamily in the crustacean order Stomatopoda. To date, phylogenetic relationships within this superfamily have been comprehensively analysed using morphological data, with six major generic groupings being recovered. Here, we infer the phylogeny of Squilloidea using a combined dataset comprising 75 somatic morphological characters and four molecular markers. Nodal support is low when the morphological and molecular datasets are analysed separately but improves substantially when combined in a total-evidence phylogenetic analysis. We obtain a well resolved and strongly supported phylogeny that is largely congruent with previous estimates except that the Anchisquilloides-group, rather than the Meiosquillagroup, is the earliest-branching lineage in Squilloidea. The splits among the Anchisquilloides- and Meiosquilla-groups are followed by those of the Clorida-, Harpiosquilla-, Squilla- and Oratosquilla-groups. Most of the generic groups are recovered as monophyletic, with the exception of the Squilla- and Oratosquilla-groups. However, many genera within the Oratosquilla-group are not recovered as monophyletic. Further exploration with more extensive molecular sampling will be needed to resolve relationships within the Oratosquilla-group and to investigate the adaptive radiation of squilloids. Overall, our results demonstrate the merit of combining morphological and molecular datasets for resolving phylogenetic relationships.
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IU (Crustacés) -
Zbinden M., Pailleret M., Ravaux J., Gaudron S.M., Hoyoux C., Lambourdière J., Warén A., Lorion J., Halary S. & Duperron S. 2010. Bacterial communities associated with the wood-feeding gastropod Pectinodonta sp. (Patellogastropoda, Mollusca): Bacteria associated with a wood-feeding gastropod. FEMS Microbiology Ecology 74(2): 450-463. DOI:10.1111/j.1574-6941.2010.00959.x
Résumé [+] [-]Even though their occurrence was reported a long time ago, sunken wood ecosystems at the deep-sea floor have only recently received specific attention. Accumulations of wood fragments in the deep sea create niches for a diverse fauna, but the significance of the wood itself as a food source remains to be evaluated. Pectinodonta sp. is a patellogastropod that exclusively occurs on woody substrates, where individuals excavate deep depressions, and is thus a potential candidate for a wood-eating lifestyle. Several approaches were used on Pectinodonta sampled close to Tongoa island (Vanuatu) to investigate its dietary habits. Host carbon is most likely derived from the wood material based on stable isotopes analyses, and high cellulase activity was measured in the digestive mass. Electron microscopy and FISH revealed the occurrence of two distinct and dense bacterial communities, in the digestive gland and on the gill. Gland-associated 16S rRNA gene bacterial phylotypes, confirmed by in situ hybridization, included members of three divisions (Alpha- and Gammaproteobacteria, Bacteroidetes), and were moderately related (90-96% sequence identity) to polymer-degrading and denitrifying bacteria. Gill-associated phylotypes included representatives of the Delta- and Epsilonproteobacteria. The possible involvement of these two bacterial communities in wood utilization by Pectinodonta sp. is discussed.
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IM (Mollusques)