The present study describes a new species of Arcoscalpellum Hoek, 1907, and a new species of Gymnoscalpellum Newman & Ross, 1971, collected by deep-sea expeditions led by the Muséum national d’Histoire naturelle (Paris) in the Coral Sea off New Caledonia, Papua New Guinea (PNG), the Solomon Islands and Vanuatu. Arcoscalpellum epeeum sp. Nov. Differs from all described species of Arcoscalpellum by the presence of a long, sharp, sword-shaped carina, which extends beyond the apices of the terga by 1/3 to 1/4 of their length. The species is dioecious, with large females and dwarf males that are sac-like, lack shell plates and are housed in paired receptacles at the inner edges of the scutal plates. Arcoscalpellum epeeum sp. Nov. Was collected in the waters of New Caledonia and Vanuatu. Gymnoscalpellum indopacificum sp. Nov. Differs from the six currently described species of Gymnoscalpellum by having a very small inframedian latus and a branched upper latus. The species is dioecious, with large females and dwarf males, the latter composed of 4 shell plates and housed in paired receptacles at the inner edges of the scutal plates. The penis of the dwarf males of G. indopacificum sp. Nov. Is about 0.8 of the total length of the male and has five side branches extending out along its length. Gymnoscalpellum indopacificum sp. Nov. Is distributed in the waters of Papua New Guinea, the Solomon Islands and Vanuatu, and represents the first record of this genus in the Indo-Pacific region.

BATHUS 2, BIOCAL, BIOPAPUA, BOA1, EBISCO, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, MUSORSTOM 8, NORFOLK 1, NORFOLK 2, SALOMON 1, SMIB 2, SMIB 4, SMIB 8

BATHUS 3, BIOPAPUA, EXBODI, MUSORSTOM 8, NORFOLK 2, SALOMON 1

ATIMO VATAE, BIOPAPUA, BORDAU 1, BORDAU 2, EBISCO, EXBODI, MUSORSTOM 10, MUSORSTOM 8, NORFOLK 1, NORFOLK 2, SALOMON 1, SALOMON 2, SANTO 2006, SMIB 3, SMIB 5, TARASOC

The present study identified a new Calantica species from the deep-sea of the Papua New Guinea. Calantica australpacifica sp. nov. has 13 capitular plates (S-T surrounded by R-RL-L-CL-C-SC) and these plates are arranged in two horizontal whorls and with small degree of plate overlapping in the large hermaphrodites. There are some hermaphroditic individuals have asymmetrical plate arrangement, with additional CL and L on one side. Sexual system of C. australpacifica sp. nov. is androdieocy, with large hermaphrodite being accompanied by dwarf males (with well-developed penis but absences of ovarian tissue) that are often located on the sub-rostral position of the peduncle. Dwarf males are differentiated into peduncle and capitulum. Lateral side of the basal portion of dwarf male peduncle attached to the large hermaphrodite, result in one lateral side of the dwarf male facing the hermaphrodite and vice versa. Capitulum of dwarf males with asymmetrical plate arrangement. The lateral side of dwarf males opposing away from the hermaphrodite has S-T surrounded by R-RL-L-CL-C-SC and the lateral side facing the hermaphrodite composed of S-T, without RL, L and CL. This is the first report on the location of dwarf males on sub-rostral position in Calantica, rather than in the supra-oral position within the capitulum. Morphology of C. australpacifica cannot be assigned to the present 4 morphological groups of Calantica and represent a new group and new species.

BIOPAPUA, PAPUA NIUGINI

PAPUA NIUGINI

PANGLAO 2004, SANTO 2006

More than 5000 specimens of squat lobsters belonging to the families Munididae and Munidopsidae were collected during four cruises along the coasts of Papua New Guinea. The study of these specimens revealed the presence of 13 new species (one Babamunida, one Crosnierita, eight Munida, one Paramunida and two Munidopsis). Overall, 109 species of Munididae and 37 of Munidopsidae are recognized. We include the records of all species, describing and illustrating the new species. Furthermore, we provide some new data on the colour patterns for some species. We have also included molecular data from two mitochondrial markers (16S rRNA and COI) to support the taxonomic status of different new species.

BIOPAPUA, EBISCO, EXBODI, KANADEEP, KAVIENG 2014, MADEEP, PAPUA NIUGINI, SALOMONBOA 3

ATIMO VATAE, BIOMAGLO, MAINBAZA, MIRIKY, Walters Shoal

The complete absolute stereochemistry of two new cytotoxic marine polypropionaies isolated from the saponified extract of the pulmonate mollusc Onchidium sp., onchitriol I and II (4, 5)was established using Mosher-Trost's methodology.

SMIB 1, SMIB 2, SMIB 3, SMIB 4, SMIB 5

BATHUS 1, BORDAU 1, HALIPRO 1, KAVIENG 2014, MUSORSTOM 10, MUSORSTOM 8, PAPUA NIUGINI, SANTO 2006

The genus Munidopsis is one of the most diverse genera within squat lobsters. Here, three new species of Munidopsis, M. cornuata n. sp., M. senticosa n. sp., and M. turgida n. sp., from <500 m off Guadeloupe Island (Caribbean Sea), are fully described and illustrated. Among the Atlantic species of the genus, M. cornuata n. sp. belongs to the group of species having the dorsal surface of the carapace with spines and is most similar to M. robusta (A. Milne-Edwards, 1880), from the Gulf of Mexico and Caribbean Sea. Munidopsis senticosa n. sp. resembles M. barbarae (Boone, 1927) from the Bahamas and the Gulf of Mexico and M. penescabra Pequegnat & Williams 1995, from off Georgia and Gulf of Mexico; the three species belong to the group having the carapace covered with sharp spines. Finally, M. turgida n. sp. is characterized by having the dorsal surface of the carapace, abdomen and pereiopods covered by granules; and resembles M. granulens Mayo, 1972, from NW Caribbean Sea. Apart from the morphological evidence, the analysis of mitochondrial genes (COI and 16S) supports establishing these new species, showing very high genetic divergences compared to their congeners (from 14.5 to 17% for COI, and 7.7 to 12.8% for 16S data).

KARUBENTHOS 2