A deepwater cardinalfish, Epigonus affinis Parin and Abramov, 1986, is redescribed on the basis of the type specimens and two additional specimens collected from the eastern Central Atlantic, and compared with related species of the genus. This species differs from other congeners in having the following combination of characters: presence of a pungent opercular spine and palatine teeth; second dorsal-fin rays I, 9; pectoral-fin rays 18 or 19; total gill rakers 30-33; vertebrae 10+15; absence of maxillary mustache-like processes; and absence of ribs on last abdominal vertebra.
The genus Physopleurella Reuter, 1884 is recorded from Indonesia for the first time, represented by four species, including one new species from eastern Java, Bali, and Flores. They are P. pessoni Carayon, 1956, P. nigrifemora Yamada and Hirowatari, 2007, P. striata Yamada and Hirowatari, 2007, and P. aurantia sp. nov. Physopleurella aurantia sp. nov. differs from other congeners in having the following combination of character states: antennal segment II about as long as the head width across the eyes, the apex of the cuneus narrowly darkened, and the paramere of the male genitalia slender, extending laterally from the pygophore and abruptly curving anteriad in its apical one-third. A revised key to Southeast Asian species of Physopleurella is provided.
A new species of the varunid crab genus Gopkittisak Naruse and Clark, 2009, G. angustum sp. nov., is described on the basis of seven specimens from intertidal sand flats at Iriomote Island, Ryukyu Islands, Japan. It is close to its sole congener G. gallardoi (Serene and Soh, 1976), but the different shapes of the carapace and male abdomen, as well as the setal pattern of the propodus of the fourth pereopod and the coloration in life, distinguish the new taxon from G. gallardoi.
Collections made during recent French expeditions to the Solomon Islands (SALOMON 1 and 2) and Vanuatu (BOA 0 and 1) yielded 10 species of the caridean genus Glyphocrangon A. Milne-Edwards, 1881, including two new to science: G. boa sp. nov. from Vanuatu and G. prostrata sp. nov. from the Solomon Islands. Affinities of these two new species are discussed. The following eight species are newly recorded from the Solomon Islands: G. confusa Komai, 2004, G. faxoni De Man, 1918, G. indonesiensis Komai, 2004, G. lineata Komai, 2004, G. megalophthalma De Man, 1918, G. proxima Komai, 2004, G. pugnax De Man, 1918 and G. similior Komai, 2004. Glyphocrangon demani Komai, 2006 and G. rudis Komai, 2006 are shown to represent the male and female, respectively, of the same species, and the latter name is given priority over the former.
A monotypic new genus, Mucrocalliope (Crustacea: Amphipoda: Paracalliopiidae), is erected for its type species M. shimantoensis sp. nov. from the Shimanto estuary, western Japan. Mucrocalliope is similar to Indocalliope Barnard and Karaman, 1982 in many characters but is different from Indocalliope and the other genera of the family in having an acute dorsal tooth on pleonites 1 and 2. In spite of recent collecting efforts in various localities of western Japan, Mucrocalliope shimantoensis sp. nov. has been found only in the Shimanto estuary, suggesting that it is probably narrowly restricted in range.
Carinoma hamanako sp. nov., the ninth member of the genus, is described based on three specimens collected in Lake Hamana, Shizuoka Prefecture, Pacific coast of Honshu, Japan. The new species can be distinguished from its congeners by the blind-ending rhynchocoelic villar vessels, the lateral rhynchocoel vessels rejoining the lateral vessels, the unbranched excretory canals, the situation of the posterior part of the mid-dorsal nerve within the longitudinal muscle layer of the body wall, and the absence of a vascular plexus in the foregut region. A phylogenetic analysis based on the nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I genes shows that C. hamanako sp. nov. forms a clade with two congeners, C. mutabile Griffin, 1898 and C. tremaphoros Thompson, 1900, thus supporting the generic placement of the new species.