A new Scyllaeidae of the genus Notobryon is described from Guadeloupe, in the Lesser Antilles. Notobryon caribbaeus sp. nov. is characterized by having the anterior pair of body lobes remarkably bigger than the posterior pair, a stomach with eight triangular plates, a black and very wide ampulla, a lemon-shaped bursa copulatrix and a complex and welldifferentiated sponge-like prostate. The first Caribbean records of Notobryon were provisionally assigned to the Australian species Notobryon cf. wardi and later transferred to Notobryon panamica. However, the structure of the male genital system is one of the main morphological characters to discriminate species in the genus and the presence of a prostate in N. caribbaeus sp. nov. distinguishes it from N. panamica, which remains confined to the eastern Pacific. Of the remaining four species in the world, only Notobryon bijecurum shares this character, but its external anatomy is different: it lacks a bursa copulatrix and the deferent duct is much shorter. Notobryon caribbaeus sp. nov. was captured in the context of an intensive expedition (‘Karubenthos’) organized by the Muse´um National d’Histoire Naturelle, Paris and its description raises the total inventory of sea slugs in Guadeloupe to 150.

KARUBENTHOS 2012

A new shallow water species of the genus Philine Ascanius, 1772 is described from the coastal lagoons of the Bay of Buche, Venezuela. This species is characterized by the color pattern of its body, yellowish with white dots, the cephalic shield, as long as the posterior shield, the internal shell with the rear posterior edge not surpassing the apex and the sculpture composed of 6 to 18 striking spiral lines, the innermost lateral teeth of the radula, bearing 10–19 denticles in the masticatory margin and by lacking gizzard plates. Philine buchensis new species is compared with all the species of the genus known to date in the Caribbean, particularly withthose from coastal areas (0–10m): Philine sagra (d´Orbigny, 1841) and Philine caballeri Ortea, Espinosa & Moro, 2001.

KARUBENTHOS 2012

The nudibranch gastropod genus Aeolidiella Bergh, 1867 has been found to be polyphyletic. It holds an unnamed clade that was named Bulbaeolidia Carmona, Pola, Gosliner & Cervera, 2013. This genus is composed by four species, two of them unnamed: Bulbaeolidia alba, from Japan,Malaysia and Philippines, Bulbaeolidia japonica, from Japan, Bulbaeolidia sp. B, from Hawaii, and Bulbaeolidia sp. A, from Brazil. Bulbaeolidia was described in the context of a molecular phylogeny, thus, no “taxonomic action” regarding to the unnamed species was taken, leaving the work incomplete, and the 50 % of the members of Bulbaeolidia undescribed. In this paper we describe the Western Atlantic member of the genus Bulbaeolidia and a Pacific species from Galapagos, both cryptic with Bulbaeolidia alba (Risbec, 1929).

KARUBENTHOS 2012

The Indo-Pacific genus Spiniphiline Gosliner, 1988 was erected for a rare species of Cephalaspidea characterized by an internal shell with spines. Spiniphiline kensleyi Gosliner, 1988 was until now the only known species. During the ‘Karubenthos’ expedition to the archipelago of Guadeloupe (Lesser Antilles, Caribbean Sea) coordinated by the Muse´um national d’Histoire naturelle, Paris, a small philinid was captured on a ma¨ erl bed. This specimen is here described as a new species of Spiniphiline—S. persei. Its occurrence in Guadeloupe is the first record of the genus in the Atlantic Ocean. The systematic position of Spiniphiline is discussed and evidence given for its inclusion in the family Philinidae s. s.

KARUBENTHOS 2012

Twenty five new species of the family Marginellidae, from the Guadeloupe island, Lesser Antillean, one of the genus Hyalina Schumacher, 1817 and 24 of the genus Volvarina Hinds, 1844, are described, showing data about external anatomy of fourteen species.

KARUBENTHOS 2012

Twenty new species of the family Marginellidae are described; one belonging to the genus Hyalina Schumacher, 1817, three Prunum Herrmannsen, 1852 and sixteen Volvalrina Hinds, 1844. This species were collected in the islands of Cuba, Martinique, Guadeloupe and Curaçao. Additionally, the holotype of Volvarina albolineata (d'Orbigny, 1842), a controversial species originally described from Cuba, is herein illustrated and seven species cryptic with it are proposed as new to science, within the sixteen new Volvarina.

KARUBENTHOS 2012

Description of 11 species of the family Marginellidae, three of the genus Dentimargo Cossmann, 1899, seven of the genus Eratoidea Weinkauff, 1879, and a new genus with its type species, found in the cruise Karubenthos-2012 in waters of Guadeloupe Island, Lesser Antillean.

KARUBENTHOS 2012

KARUBENTHOS 2012

Description of 16 new species of gastropod mollusks from Alejandro de Humboldt National Park, Baracoa Sector, Guantánamo, Cuba, 14 prosobranch neogastropods (tree of family Columbellidae Swainson, 1840; 7 of family Cystiscidae Stimpson, 1865; tree of family Marginellidae Fleming, 1828; one of family Mitromorphidae Casey, 1904) and two heterobranch gastropods (one of family Acteonidae d’Orbigny, 1843 and one of family Pyramidellidae Gray, 1840). Two new species of the genus Dentimargo Coosmann, 1899 (family Marginellidae) of the Maisí-Caleta Ecological Reserve, Guantánamo province, are included.

KARUBENTHOS 2012

MADIBENTHOS

Two new species of the genera Bactrocythara Woodring, 1928 and Agathotoma Coosman, 1899, from Cuba and Guadelooupe, are described.

KARUBENTHOS 2012

Description of five new species of neogastopod prosobranchs, one of the family Columbellidae and four of the family Marginellidae, from the eastern region os Cuba are described. Moreover, others species of marine gastropods are recorded to the Cuban fauna or its eastern region.

KARUBENTHOS 2012

MADIBENTHOS

From samples of EratoideaWeinkauff, 1879 collected during the MADIBENTHOS 2016 expedition, the importance of the contribution of d’Orbigny for the knowledge of the molluscs of Martinique and the difficulties for the correct taxonomic identification of E. sulcata (d’Orbigny, 1842) is discussed. Orbigny, 1842). Two new species of the genus are also proposed.

KARUBENTHOS 2012, MADIBENTHOS

BENTHEDI

A systematic inventory of the sea slugs collected during the expedition Karubenthos-2012, in Guadeloupe island (Karukera), is herein presented. It includes a total of 117 species; 97 Opisthobranchia and 20 Sacoglossa; 85 of them are recorded for the first time. Previous records of other species not collected in the campaign are added to the catalog, which includes a total of 127 species, 42 of them illustrated. Additionally, a new species of Dendrodoris Ehrenberg, 1831, is described and specimens of Paradoris indecora (Marcus, 1970) and three different species of Doto Oken, 1815 collected for the first time in Guadeloupe, are studied in detail: Doto awapa Ortea, 2001, Doto curere Ortea, 2001 and Doto torrelavega Ortea & Caballer, 2005.

KARUBENTHOS 2012

The use of the internal shell of the Cephalaspidea belonging to the Family Aglajidae is proposed as critical systematic character to distinguish taxa. The shell of 11 Atlantic species is herein illustrated.

KARUBENTHOS 2012

A systematic list including 23 species of sea slugs, 18 opisthobranchia and 5 saco-glossa, recorded for the first time in Guadeloupe Island, is herein presented. These species were collected during the expedition Karubenthos-2012 (may and December 2012) hosted by the National Museum of Natural History in Paris. Additionally, 1 new genus and 8 new species (6 opisthobranchia and 2 sacoglossa) are described. With this contribution, the inventory of the sea slugs from Guadeloupe raises to 149 species, 9 of them newly described.

KARUBENTHOS 2012

All the species of the genres Pleurobranchus Cuvier, 1804 and Berthellina Gardiner, 1936 described or cited in the Macaronesia are revised. The records of Pleurobranchus areolatus Mörch, 1863 in the Canaries are transferred to Pleurobranchus crossei Vayssiere, 1896. Pleurobranchus lowei Watson, 1897, from Madeira, is synonymized with Berthellina edwardsi (Vayssiere, 1896). The name Pleurobranchus garciagomezi Cervera, Cattaneo & Edmunds, 1996 is applied to the specimens, endemic to Cape Verde, that match in the chromatic pattern of the holotype of this species. Pleurobranchus wirtzi, new species, is described to include the rest of the specimens from other islands in the Macaronesia, identified in the literature as P. garciagomezi. Two new species of Berthella Blainville, 1828 and Berthellina are described from Cape Verde and compared with two Caribbean taxa, Pleurobranchus evelinae Thompson, 1978 and Berthellina quadridens (Mörch, 1863). New anatomical data are given on the latter. In addition, the Pleurobranchidae from Galapagos obtained in the expeditions organized by the “Museo de Ciencias Naturales de Tenerife” in Tenerife is studied, given that two Atlantic species, Pleurobranchus areolatus and Berthellina engeli Gardiner, 1936, have been recorded there.

KARUBENTHOS 2012

Thirty new species of the genre Volvarina Hinds, 1844, (Marginellidae) found in the Guadeloupe Island (Lesser Antilles) and its islets are described, illustrating live animals seven of them and twenty two radular architectures, which are used to propose its fragmentation into subgenres and separation upcoming taxa.

KARUBENTHOS 2012

The synonymy of Peltodoris nayarita Ortea & Llera, 1981, from the Pacific coast of America, is discussed with its Atlantic congener P. greeleyi MacFarland, 1966. In this paper we propose to maintain both of them as separated species within the genus Diaulula Bergh, 1874.

KARUBENTHOS 2012

In the most recent molecular phylogeny of the Aglajidae, the Caribbean species Aglaja felis Marcus & Marcus, 1970 was transferred to the Japanese genus Nakamigawaia Kuroda & Habe in Habe, 1961 without justification or support. The assumed N. felis was used as the only representative of the genus in the phylogeny, which did not include the type species: Nakamigawaia spiralis Kuroda & Habe in Habe, 1961. The material determined as A. felis came from Bahamas, Papua New Guinea and Philippines and the conclusion was that they were a complex of species; the Indo-Pacific ones possibly new and all of them belonging to the genus Nakamigawaia. Nonetheless, a simple comparison of shells of the type species of Aglaja Renier, 1881 and Nakamigawaia with A. felis, shows remarkable and supra-specific differences. Thus, in absence of N. spiralis, Nakamigawaia would not be represented in the phylogeny of the Aglajidae, but a distinct taxa, distributed in the Caribbean and the Indo-Pacific. Migaya Ortea, Caballer & Espinosa new genus, is proposed to relocate A. felis. This genus is characterized by bearing sensorial bristles on the head, by its internal shell and supported by the molecular phylogeny. In the same phylogeny, the genus Chelidonura A. Adams, 1850 was fragmented in several independent clades, one of them, characterized by the shell bearing a crest in the protoconch. Two new species of this clade are described in this paper. The shell can be very helpful to assign the right names in the Aglajidae and using it is recommended even in papers where the molecular techniques are applied. A visual analysis of the usefulness of the shell within the group is performed using the established phylogeny as a frame for comparison.

KARUBENTHOS 2012

Twenty one new species of the genus Gibberula Swainson, 1840, found in the Caribbean Sea (Guadalupe, LesserAntilles), are described, illustrating living animals from all of them and 18 radular architectures. The new taxa has been named in honor of 21 female winners of the Prince of Asturias Award.

KARUBENTHOS 2012

Specimens from the Canary Islands of Aegires sublaevis Odhner, 1932 are studied to establish the distinctiveness of the species and its variability, in order to separate four closely related taxa in the Caribbean Sea, which are described as new species, using techniques of traditional taxonomy.

KARUBENTHOS 2012

MADIBENTHOS

Three new species of three genera of the Plesiocystiscidae subfamily are described from specimens collected in the island of Guadeloupe, Lesser Antilles. Of the three new taxa illustrations of live animals and radular architecture two of them are provided.

KARUBENTHOS 2012

From specimens collected on the island of Martinique, Lesser Antillas, a new species of the genus Hyalina Schumacher, 1817 (Marginellidae), characterized by the shell and coloration of the living animal, and compared with its two congeners in the Lesser Antilles, is described.

KARUBENTHOS 2012, MADIBENTHOS

From a specimen of 50 mm collected in a mangrove of Martinique, Lesser Antilles, during the Madibenthos expedition, the second Atlantic species of the genus Hoplodoris Bergh, 1880 (Nudibranchia) is described, characterized by the colour of the living animal, tubers mantle, rhinophores, gills, labial cuticle and radule.

KARUBENTHOS 2012, MADIBENTHOS

A new Caribbean species of the genus Doris Linné 1758, is described, characterized by the great development of the mantle tubercles and the branchial sheath, which feeds on the sponges of the genus Halichondria Fleming, 1828 .

MADIBENTHOS

KARUBENTHOS 2012

From specimens collected on the island of Martinique, Lesser Antillas, two new species of the genus Hyalina Schumacher, 1817 (Marginellidaer), characterized by the columelar fold of the shell and coloration of the living animal, distintive from the rest of the caribbean congeners, are described. In addition, the radula of 3species of the genus are described.

MADIBENTHOS

Three different species of the genus Lapinura Marcus & Marcus, 1970 are separated from exemplars collected in the islands of Cape Verde and insular Caribbean. One of it is associated with Lapinura divae Marcus, 1963, type specimen of the genus, and the other two are described as new: L. josemeloi, from the islands of Cape Verde, and L. aestus, from the continental Caribbean of Costa Rica. On three species, Data about their internal anatomy, outer shell, gill and coloring of living animals are provided.

KARUBENTHOS 2012, MADIBENTHOS

Description of three new species of Gibberula Swainson, 1840 from the island of Martinique, Lesser Antilles, whose epithets have been proposed by the group of schoolchildren who observed the scientific work developed within the framwork of the mission Madibenthos organiez by the MNHN, Paris.

MADIBENTHOS

MADIBENTHOS