-
Fassio G., Modica M.V., Mary L., Zaharias P., Fedosov A.E., Gorson J., Kantor Y.I., Holford M. & Puillandre N. 2019. Venom Diversity and Evolution in the Most Divergent Cone Snail Genus Profundiconus. Toxins 11(11): 623. DOI:10.3390/toxins11110623
Abstract [+]
[-]
Profundiconus is the most divergent cone snail genus and its unique phylogenetic position, sister to the rest of the family Conidae, makes it a key taxon for examining venom evolution and diversity. Venom gland and foot transcriptomes of Profundiconus cf. vaubani and Profundiconus neocaledonicus were de novo assembled, annotated, and analyzed for differential expression. One hundred and thirty-seven venom components were identified from P. cf. vaubani and 82 from P. neocaledonicus, with only four shared by both species. The majority of the transcript diversity was composed of putative peptides, including conotoxins, profunditoxins, turripeptides, insulin, and prohormone-4. However, there were also a significant percentage of other putative venom components such as chymotrypsin and L-rhamnose-binding lectin. The large majority of conotoxins appeared to be from new gene superfamilies, three of which are highly different from previously reported venom peptide toxins. Their low conotoxin diversity and the type of insulin found suggested that these species, for which no ecological information are available, have a worm or molluscan diet associated with a narrow dietary breadth. Our results indicate that Profundiconus venom is highly distinct from that of other cone snails, and therefore important for examining venom evolution in the Conidae family.
Accessible surveys cited (1) [+]
[-]
-
Fassio G., Russini V., Buge B., Schiaparelli S., Modica M.V., Bouchet P. & Oliverio M. 2020. High cryptic diversity in the kleptoparasitic genus Hyalorisia Dall, 1889 (Littorinimorpha: Capulidae) with the description of nine new species from the Indo-West Pacific. Journal of Molluscan Studies: 401-421. DOI:10.1093/mollus/eyaa028
Abstract [+]
[-]
Species in the family Capulidae (Littorinimorpha: Capuloidea) display a wide range of shell morphologies. Several species are known to live in association with other benthic invertebrates—mostly bivalves and sabellid worms, but also other gastropods—and are believed to be kleptoparasitic filter feeders that take advantage of the water current produced by the host. This peculiar trophic ecology, implying a sedentary lifestyle, has resulted in highly convergent shell forms. This is particularly true for the genus Hyalorisia Dall, 1889, which occurs in deep water in the Caribbean and Indo-West Pacific provinces, with two nominal species recognized so far. Combining morphological, ecological and molecular data, we assessed the diversity of the genus, its phylogenetic position inside the family and its association with its bivalve host, the genus Propeamussium de Gregorio, 1884 (Pectinoidea), resulting in the description of nine new cryptic species. When sympatric, species of Hyalorisia are associated with different host species, but the same species of Propeamussium may be the host of several allopatric species of Hyalorisia.
Accessible surveys cited (17) [+]
[-]
AURORA 2007,
CONCALIS,
CORSICABENTHOS 1,
EBISCO,
KANACONO,
KANADEEP,
KARUBENTHOS 2,
KAVIENG 2014,
KOUMAC 2.3,
MADEEP,
MAINBAZA,
MIRIKY,
NanHai 2014,
PANGLAO 2004,
PANGLAO 2005,
SALOMON 2,
ZhongSha 2015
-
Fassio g., Bouchet p., Lozouet p., Modica m.v., Russini v., Schiaparelli s. & Oliverio m. 2020. Becoming a limpet: An ‘intermittent limpetization’ process driven by host features in the kleptoparasitic gastropod family Capulidae. Molecular Phylogenetics and Evolution. DOI:https://doi.org/10.1016/j.ympev.2020.107014
Accessible surveys cited (16) [+]
[-]
AURORA 2007,
CONCALIS,
CORSICABENTHOS 1,
EBISCO,
KANADEEP,
KARUBENTHOS 2,
KAVIENG 2014,
KOUMAC 2.3,
MADEEP,
MAINBAZA,
MIRIKY,
NanHai 2014,
PANGLAO 2004,
PANGLAO 2005,
SALOMON 2,
ZhongSha 2015
-
Fedosov A.E., Caballer gutierrez M., Buge B., Sorokin P.V., Puillandre N. & Bouchet P. 2019. Mapping the missing branch on the neogastropod tree of life: molecular phylogeny of marginelliform gastropods. Journal of Molluscan Studies 85(4): 440–452. DOI:10.1093/mollus/eyz028
Abstract [+]
[-]
Marginelliform gastropods are a heterogeneous and diverse group of molluscs encompassing over 1,600 living species, among which are the smallest known neogastropods. The relationships of marginelliform gastropods within the order Neogastropoda are controversial, and the monophyly of the two marginelliform families the Marginellidae J. Fleming, 1828 and the Cystiscidae Stimpson, 1865, remains unconfirmed. DNA sequence data have never been used to assess the relationships of the marginelliform gastropods, making this group the only major branch missing in our current understanding of the neogastropod tree of life. Here we report results of the first multilocus phylogenetic analysis of marginelliform gastropods, which is based on a dataset comprising 63 species (20 genera) of Marginellidae and Cystiscidae, and a wide range of neogastropod lineages. The Marginellidae and Cystiscidae form a moderately supported clade that is sister to the family Volutidae. Marginellona gigas appears to be sister to all other marginelliforms. The subfamily Marginellinae was recovered as a well-supported clade, and good resolution of this part of the tree makes it possible to propose amendments to the family-level classification of the group. The relationship between Granulina and other marginelliforms could not be resolved and requires further study. Due to poor resolution of basal relationships within the Marginellidae–Cystiscidae clade, the monophyly of the Cystiscidae was neither confirmed nor convincingly rejected. The shell morphology of most marginellid and cystiscid genera is taxonomically not very informative but, nevertheless, of the traditionally recognized genera only Gibberula and Dentimargo were shown to be polyphyletic. Although a comprehensive systematic revision of the group requires more extensive taxonomic sampling (e.g. with better representation of the type species of nominal genus-group names), our results support the superfamily Volutoidea, comprising four families (Volutidae, Cystiscidae, Marginellidae and Marginellonidae), with the placement of the Granulinidae uncertain for the time being.
Accessible surveys cited (15) [+]
[-]
ATIMO VATAE,
Restricted,
DongSha 2014,
EXBODI,
GUYANE 2014,
ILES DU SALUT,
INHACA 2011,
KANACONO,
KARUBENTHOS 2,
KAVIENG 2014,
MADEEP,
MADIBENTHOS,
MAINBAZA,
PAPUA NIUGINI,
Restricted
-
Houart R., Zuccon D. & Puillandre N. 2019. Description of new genera and new species of Ergalataxinae (Gastropoda: Muricidae). Novapex 20(HS 12): 1-52
Abstract [+]
[-]
The recent genetic analysis of the muricid subfamily Ergalataxinae has led to a better understanding of this subfamily, but some species were left without appropriate generic assignments and the classification of others required revision. This knowledge gap is partially filled herein, with new combinations and the description of three new genera. The examination of new material, along with a careful re-examination of and comparison to existing material, resulted also in the identification of nine new species. These new genera and new species are described herein, lectotypes are designated and new combinations are given. The geographical range of all the new species is provided on maps. All new species are compared with related or similar species. The radula of Morula palmeri Powell, 1967 is illustrated for the first time.
Accessible surveys cited (33) [+]
[-]
ATIMO VATAE,
AURORA 2007,
BATHUS 2,
BENTHEDI,
BERYX 11,
BIOCAL,
BIOMAGLO,
BORDAU 2,
CHALCAL 2,
EBISCO,
EXBODI,
KANACONO,
KANADEEP,
LIFOU 2000,
MAINBAZA,
MD32 (REUNION),
MIRIKY,
MUSORSTOM 7,
MUSORSTOM 8,
MUSORSTOM 9,
NORFOLK 1,
NORFOLK 2,
Restricted,
PANGLAO 2004,
PANGLAO 2005,
PAPUA NIUGINI,
SANTO 2006,
SMIB 3,
SMIB 4,
SMIB 5,
SMIB 8,
TERRASSES,
Walters Shoal
-
Houart R., Heros V. & Zuccon, dario D. 2019. Description of Two New Species of Dermomurex (Gastropoda: Muricidae) with a Review of Dermomurex (Takia) in the Indo-West Paci c. VENUS 78(1-2): 1-25. DOI:10.18941/venus.78.1-2_1
Abstract [+]
[-]
The subgenus Dermomurex (Takia) is reviewed and one new species, D. (T.) manonae n. sp., is described from New Caledonia. It is distinguished from the similar D. (T.) wareni Houart, 1990 based on genetic differences and a few shell characters. From other species it differs in its shell and intritacalx morphology. The four Indo-West Pacific species are reviewed and illustrated, namely D. (T.) bobyini Kosuge, 1984, D. (T.) infrons Vokes, 1974, D. (T.) wareni Houart, 1990 and D. (T.) manonae n. sp. Dermomurex (subgenus?) paulinae n. sp. is described from New Caledonia in an undetermined subgenus and is distinguished from D. (D.) africanus Vokes, 1978 from South Africa by its shell and intritacalx morphology. Trialatella is synonymized with Dermomurex s.s.
Accessible surveys cited (32) [+]
[-]
ATIMO VATAE,
BATHUS 2,
BATHUS 3,
BATHUS 4,
BENTHAUS,
BIOCAL,
CHALCAL 2,
CONCALIS,
EBISCO,
EXBODI,
KANACONO,
KANADEEP,
KARUBAR,
MIRIKY,
MUSORSTOM 4,
MUSORSTOM 5,
MUSORSTOM 6,
MUSORSTOM 8,
NORFOLK 1,
NORFOLK 2,
SMIB 1,
SMIB 2,
SMIB 3,
SMIB 4,
SMIB 5,
SMIB 6,
SMIB 8,
TAIWAN 2000,
TAIWAN 2002,
TAIWAN 2004,
TERRASSES,
VAUBAN 1978-1979
-
Houart R. & Héros V. 2019. The genus Gemixystus Iredale, 1929 (Gastropoda: Muricidae: Trophoninae) in New Caledonia with the description of two new species and some notes on the genus in the Indo-West Pacific. Novapex 20(1-2): 1-12
Abstract [+]
[-]
The genus Gemixystus Iredale, 1929 in New Caledonia is reviewed. Five species are recorded of which two are new, G. impolitus n. sp. and G. lenis n. sp. Gemixystus stimuleus (Hedley, 1912) is recorded for the first time in New Caledonia. Gemixystus transkeiensis (Houart, 1987) is re-transferred from Vaughtia to Gemixystus. The 12 extant species of Gemixystus are illustrated.
Accessible surveys cited (8) [+]
[-]
-
Huang S.I. & Lin M.H. 2021. Thirty Trichotropid CAPULIDAE in tropical and subtropical Indo-Pacific and Atlantic Ocean (GASTROPODA). Bulletin of Malacology, Taiwan 44: 23-81
Abstract [+]
[-]
30 new species in the Trichotropid CAPULIDAE in the genera Verticosta, Latticosta n. gen., Torellia and Trichosirius are described from tropical and subtropical deep water of Indo-Pacific and Atlantic Ocean: Verticosta ariane n. sp., Verticosta bellefontainae n. sp., Verticosta milleinsularum n. sp., Verticosta filipinos n. sp., Verticosta plexa n. sp., Verticosta lapita n. sp., Verticosta pyramis n. sp., Verticosta kanak n. sp., Verticosta vanuatuensis n. sp., Verticosta feejee n. sp., Verticosta lilii n. sp., Verticosta sinusvellae n. sp., Verticosta terrasesae n. sp., Verticosta uvea n. sp., Verticosta rurutuana n. sp., Verticosta bicarinata n. sp., Verticosta tricarinata n. sp., Verticosta quadricarinata n. sp., Verticosta cheni n. sp., Verticosta iris n. sp., Verticosta castelli n. sp., Verticosta biangulata n. sp., Verticosta reunionnaise n. sp., Verticosta lemurella n. sp., Verticosta madagascarensis n. sp., Latticosta guidopoppei n. sp., Latticosta tagaroae n. sp., Latticosta magnifica n. sp., Torellia loyaute n. sp. and Trichosirius omnimarium n. sp. Trichotropis townsendi is now Latticosta townsendi n. comb.. Shell material comes from expeditions by MNHN and collections of authors.
Accessible surveys cited (51) [+]
[-]
ATIMO VATAE,
AURORA 2007,
BATHUS 1,
BATHUS 2,
BATHUS 3,
BATHUS 4,
BENTHAUS,
BENTHEDI,
BIOCAL,
BIOGEOCAL,
BIOMAGLO,
BIOPAPUA,
BOA1,
BORDAU 1,
BORDAU 2,
CONCALIS,
EBISCO,
EXBODI,
GUYANE 2014,
HALIPRO 1,
INHACA 2011,
KANACONO,
KARUBAR,
KAVIENG 2014,
LAGON,
LIFOU 2000,
MADEEP,
MADIBENTHOS,
MD32 (REUNION),
MIRIKY,
MONTROUZIER,
MUSORSTOM 10,
MUSORSTOM 2,
MUSORSTOM 3,
MUSORSTOM 4,
MUSORSTOM 6,
MUSORSTOM 7,
MUSORSTOM 8,
NORFOLK 1,
NORFOLK 2,
PANGLAO 2005,
PAPUA NIUGINI,
SALOMON 1,
SALOMON 2,
SALOMONBOA 3,
SANTO 2006,
SMIB 8,
Restricted,
TAIWAN 2000,
TARASOC,
TERRASSES
-
Kantor Y.I., Puillandre N. & Bouchet P. 2020. The challenge of integrative taxonomy of rare, deep-water gastropods: the genus Exilia (Neogastropoda: Turbinelloidea: Ptychatractidae). Journal of Molluscan Studies 86: 120-138. DOI:10.1093/mollus/eyz037
Abstract [+]
[-]
According to a recent taxonomic revision by Kantor et al. (2001), the neogastropod genus Exilia Conrad, 1860, comprises ten mostly rare species that live at depths between 200 and 2000 m. Adult Exilia measure between 30 and 90 mm in shell length, and the genus is mostly represented in museum collections by empty shells. The abundance of this genus is low in the wild, but recent expeditions organized by the Muséum national d’Histoire naturelle have yielded several dozen specimens. These new collections include samples preserved for molecular studies. Here, we present the results of the first molecular systematic study of Exilia. Our aim was to investigate the species limits proposed by Kantor et al. (2001) on the basis of shell and anatomical characters. Analysis of DNA sequence data for the cytochrome c oxidase I gene suggests that Exilia hilgendorfi, previously considered to be a single, polymorphic and broadly distributed species, is a complex of at least six species (four of which we sequenced). Two of these species, Exilia cognata n. sp. and E. fedosovi n. sp., are described as new to science. Exilia gracilior, E. claydoni and E. prellei are resurrected from the synonymy of Exilia hilgendorfi; of these three, only the last was sequenced. Exilia vagrans is a welldefined taxon, but our molecular systematic data shows that it consists of two distinct species, which occur sympatrically off Taiwan and are strikingly similar in shell and radular morphology; due to the absence of DNA sequence data from the type locality of E. vagrans (Vanuatu), it is unclear to which of these two species the name would apply. Exilia karukera n. sp., which is conchologically very similar to E. vagrans, was discovered off Guadeloupe, represents the first record of the genus from the Atlantic. For E. elegans, which was previously known only from a single shell, we provide new data including new distributional records (South Africa and the Mozambique Channel), details of the radula and DNA sequence data.
Accessible surveys cited (13) [+]
[-]
ATIMO VATAE,
AURORA 2007,
DongSha 2014,
KANACONO,
KANADEEP,
KARUBENTHOS 2,
MAINBAZA,
MIRIKY,
NanHai 2014,
SALOMON 2,
SALOMONBOA 3,
TAIWAN 2013,
TARASOC
-
Kantor Y.I., Fedosov A.E., Snyder M.A. & Bouchet P. 2018. Pseudolatirus Bellardi, 1884 revisited, with the description of two new genera and five new species (Neogastropoda: Fasciolariidae). European Journal of Taxonomy 433: 1-57. DOI:10.5852/ejt.2018.433
Abstract [+]
[-]
The genus Pseudolatirus Bellardi, 1884, with the Miocene type species Fusus bilineatus Hörnes, 1853, has been used for 13 Miocene to Early Pleistocene fossil species and eight Recent species and has traditionally been placed in the fasciolariid subfamily Peristerniinae Tryon, 1880. Although the fossil species are apparently peristerniines, the Recent species were in their majority suspected to be most closely related to Granulifusus Kuroda & Habe, 1954 in the subfamily Fusininae Wrigley, 1927. Their close affinity was confirmed by the molecular phylogenetic analysis of Couto et al. (2016). In the molecular phylogenetic section we present a more detailed analysis of the relationships of 10 Recent Pseudolatirus-like species, erect two new fusinine genera, Okutanius gen. nov. (type species Fusolatirus kuroseanus Okutani, 1975) and Vermeijius gen. nov. (type species Pseudolatirus pallidus Kuroda & Habe, 1961). Five species are described as new for science, three of them are based on sequenced specimens (Granulifusus annae sp. nov., G. norfolkensis sp. nov., Okutanius ellenae gen. et sp. nov.) and two (G. tatianae sp. nov., G. guidoi sp. nov.) are attributed to Granulifusus on the basis of conchological similarities to sequenced species. New data on radular morphology is presented for examined species.
Accessible surveys cited (20) [+]
[-]
ATIMO VATAE,
AURORA 2007,
CONCALIS,
DongSha 2014,
EBISCO,
GUYANE 2014,
KANACONO,
KARUBENTHOS 2012,
KAVIENG 2014,
MADEEP,
MIRIKY,
NanHai 2014,
Restricted,
PANGLAO 2004,
PANGLAO 2005,
PAPUA NIUGINI,
SALOMON 2,
SANTO 2006,
TARASOC,
TERRASSES
-
Kantor Y.I., Castelin M., Fedosov A. & Bouchet P. 2020. The Indo-Pacific Amalda (Neogastropoda, Olivoidea, Ancillariidae) revisited with molecular data, with special emphasis on New Caledonia. European Journal of Taxonomy(706): 1-52. DOI:10.5852/ejt.2020.706
Abstract [+]
[-]
In the ancillariid genus Amalda, the shell is character rich and 96 described species are currently treated as valid. Based on shell morphology, several subspecies have been recognized within Amalda hilgendorfi, with a combined range extending at depths of 150–750 m from Japan to the South-West Pacific. A molecular analysis of 78 specimens from throughout this range shows both a weak geographical structuring and evidence of gene flow at the regional scale. We conclude that recognition of subspecies (richeri Kilburn & Bouchet, 1988, herlaari van Pel, 1989, and vezzaroi Cossignani, 2015) within A. hilgendorfi is not justified. By contrast, hilgendorfi-like specimens from the Mozambique Channel and New Caledonia are molecularly segregated, and so are here described as new, as Amalda miriky sp. nov. and A. cacao sp. nov., respectively. The New Caledonia Amalda montrouzieri complex is shown to include at least three molecularly separable species, including A. allaryi and A. alabaster sp. nov. Molecular data also confirm the validity of the New Caledonia endemics Amalda aureomarginata, A. fuscolingua, A. bellonarum, and A. coriolis. The existence of narrow range endemics suggests that the species limits of Amalda with broad distributions, extending, e.g., from Japan to Taiwan (A. hinomotoensis) or even Indonesia, the Strait of Malacca, Vietnam and the China Sea (A. mamillata) should be taken with caution.
Accessible surveys cited (42) [+]
[-]
ATIMO VATAE,
BATHUS 1,
BATHUS 2,
BATHUS 3,
BIOCAL,
BIOPAPUA,
CHALCAL 1,
CONCALIS,
EBISCO,
EXBODI,
HALIPRO 1,
INHACA 2011,
KANACONO,
KANADEEP,
KARUBENTHOS 2012,
KAVIENG 2014,
LAGON,
MADEEP,
MAINBAZA,
MIRIKY,
MUSORSTOM 4,
MUSORSTOM 5,
NORFOLK 1,
NORFOLK 2,
NanHai 2014,
PANGLAO 2005,
PAPUA NIUGINI,
Restricted,
SALOMON 2,
SALOMONBOA 3,
SANTO 2006,
SMIB 1,
SMIB 2,
SMIB 3,
SMIB 4,
SMIB 5,
SMIB 8,
TARASOC,
TERRASSES,
VAUBAN 1978-1979,
Restricted,
ZhongSha 2015
-
Zaharias P., Pante E., Gey D., Fedosov A.E. & Puillandre N. 2020. Data, time and money: evaluating the best compromise for inferring molecular phylogenies of non-model animal taxa. Molecular Phylogenetics and Evolution 142: 106660. DOI:10.1016/j.ympev.2019.106660
Abstract [+]
[-]
For over a decade now, High Throughput sequencing (HTS) approaches have revolutionized phylogenetics, both in terms of data production and methodology. While transcriptomes and (reduced) genomes are increasingly used, generating and analyzing HTS datasets remain expensive, time consuming and complex for most nonmodel taxa. Indeed, a literature survey revealed that 74% of the molecular phylogenetics trees published in 2018 are based on data obtained through Sanger sequencing. In this context, our goal was to identify the strategy that would represent the best compromise among costs, time and robustness of the resulting tree. We sequenced and assembled 32 transcriptomes of the marine mollusk family Turridae, considered as a typical non-model animal taxon. From these data, we extracted the loci most commonly used in gastropod phylogenies (cox1, 12S, 16S, 28S, h3 and 18S), full mitogenomes, and a reduced nuclear transcriptome representation. With each dataset, we reconstructed phylogenies and compared their robustness and accuracy. We discuss the impact of missing data and the use of statistical tests, tree metrics, and supertree and supermatrix methods to further improve phylogenetic data acquisition pipelines. We evaluated the overall costs (time and money) in order to identify the best compromise for phylogenetic data sampling in non-model animal taxa. Although sequencing full mitogenomes seems to constitute the best compromise both in terms of costs and node support, they are known to induce biases in phylogenetic reconstructions. Rather, we recommend to systematically include loci commonly used for phylogenetics and taxonomy (i.e. DNA barcodes, rRNA genes, full mitogenomes, etc.) among the other loci when designing baits for capture.
Accessible surveys cited (2) [+]
[-]
-
Zaharias P., Kantor Y.I., Fedosov A.E., Criscione F., Hallan A., Kano Y., Bardin J. & Puillandre N. 2020. Just the once will not hurt: DNA suggests species lumping over two oceans in deep-sea snails (Cryptogemma). Zoological Journal of the Linnean Society 190(2): 532-557. DOI:10.1093/zoolinnean/zlaa010
Abstract [+]
[-]
Abstract
The practice of species delimitation using molecular data commonly leads to the revealing of species complexes and an increase in the number of delimited species. In a few instances, however, DNA-based taxonomy has led to lumping together of previously described species. Here, we delimit species in the genus Cryptogemma (Gastropoda: Conoidea: Turridae), a group of deep-sea snails with a wide geographical distribution, primarily by using the mitochondrial COI gene. Three approaches of species delimitation (ABGD, mPTP and GMYC) were applied to define species partitions. All approaches resulted in eight species. According to previous taxonomic studies and shell morphology, 23 available names potentially apply to the eight Cryptogemma species that were recognized herein. Shell morphometrics, radular characters and geographical and bathymetric distributions were used to link type specimens to these delimited species. In all, 23 of these available names are here attributed to seven species, resulting in 16 synonymizations, and one species is described as new: Cryptogemma powelli sp. nov. We discuss the possible reasons underlying the apparent overdescription of species within Cryptogemma, which is shown here to constitute a rare case of DNA-based species lumping in the hyper-diversified superfamily Conoidea.
Accessible surveys cited (25) [+]
[-]
ATIMO VATAE,
AURORA 2007,
BIOMAGLO,
BIOPAPUA,
CONCALIS,
DongSha 2014,
EBISCO,
EXBODI,
GUYANE 2014,
KANACONO,
KANADEEP,
KAVIENG 2014,
MADEEP,
MAINBAZA,
MIRIKY,
NORFOLK 2,
NanHai 2014,
PANGLAO 2004,
PAPUA NIUGINI,
SALOMON 2,
SALOMONBOA 3,
TAIWAN 2013,
TARASOC,
TERRASSES,
ZhongSha 2015