Fiche participant :
Nom : Lozouet
Prénom : Pierre
Liste des participations aux campagnes accessibles [+] [-]
- ATIMO VATAE
- Fort-Dauphin (Tue Apr 27 00:00:00 CEST 2010 - Wed May 19 00:00:00 CEST 2010)
- Collecte - Tri (Malacologie, Muséum national d'Histoire naturelle)
- BIOGEOCAL
- Leg 1 (Tue Apr 07 00:00:00 CEST 1987 - Tue Apr 21 00:00:00 CEST 1987)
- Collecte - Tri (Malacologiste, Muséum national d'Histoire naturelle)
- Leg 2 (Sat Apr 25 00:00:00 CEST 1987 - Wed May 06 00:00:00 CEST 1987)
- Collecte - Tri (Malacologiste, Muséum national d'Histoire naturelle)
- CEAMARC-AA
- Post campagne
- CONCALIS
- Collectes chaluts & dragues (Sat Apr 26 00:00:00 CEST 2008 - Mon May 12 00:00:00 CEST 2008)
- Collecte - Tri (Malacologie, Muséum national d'Histoire naturelle)
- CORSICABENTHOS 1
- CAMPAGNE (Mon May 06 00:00:00 CEST 2019 - Fri May 24 00:00:00 CEST 2019)
- Collecte - Tri - Photo (Malacologie, Muséum national d'Histoire naturelle)
- EBISCO
- (Tue Oct 04 00:00:00 CEST 2005 - Tue Oct 25 00:00:00 CEST 2005)
- Collecte - Tri (Malacologiste, Muséum national d'Histoire naturelle)
- EXBODI
- Leg 2 (Mon Sep 12 00:00:00 CEST 2011 - Thu Sep 29 00:00:00 CEST 2011)
- Collecte - Tri (Malacologie, Muséum national d'Histoire naturelle)
- KARUBENTHOS 2
- Leg 1 (Sun Jun 07 00:00:00 CEST 2015 - Tue Jun 16 00:00:00 CEST 2015)
- Tri, conditionnement Mollusques ( Muséum national d'Histoire naturelle)
- NORFOLK 1
- Collecte - Tri (Malacologie, Muséum national d'Histoire naturelle)
- NORFOLK 2
- (Mon Oct 20 00:00:00 CEST 2003 - Mon Nov 17 00:00:00 CET 2003)
- Collecte - Tri (Malacologie, Muséum national d'Histoire naturelle)
- PAPUA NIUGINI
- Shore-based sampling (Mon Nov 05 00:00:00 CET 2012 - Fri Dec 14 00:00:00 CET 2012)
- ( Muséum national d'Histoire naturelle)
- TAIWAN 2013
- Ocean Researcher 3 (Mon May 20 00:00:00 CEST 2013 - Tue May 21 00:00:00 CEST 2013)
- (Malacologie, Muséum national d'Histoire naturelle)
- TARASOC
- Leg 1 (Sun Sep 20 00:00:00 CEST 2009 - Thu Oct 08 00:00:00 CEST 2009)
- Collecte - Tri (Malacologie, Muséum national d'Histoire naturelle)
- TERRASSES
- (Wed Oct 15 00:00:00 CEST 2008 - Fri Oct 31 00:00:00 CET 2008)
- Collecte - Tri (Malacologie, Muséum national d'Histoire naturelle)
Contributions taxonomiques [+] [-]
Bibliographie (20) [+] [-]
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) -
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) -
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
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: 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
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) -
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) [+] [-] -
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) -
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) -
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) -
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)