Hisashi Miyamoto

Taxonomic studies on the Talitridae (Crustacea, Amphipoda) from Taiwan. -II. The genus Platorchestia

Four species of the genus Platorchestia Bousfield are described from Taiwan, e.g., P. pacifica n. sp., P. joi Stock and Biembaum, 1994, P. japonica (Tattersall,l922) and P. humicola (Martens, 1868). The former two species, together with P. platensis (Kmyer, 1845) and P. munmui Jo, 1988, compose a closely related species cluster. P. pacifica n. sp. was found on almost all the coast of the mainland and neighboring islands in Taiwan, while the other three species were found in the mainland north of23.5°N.

Redefinition of Talorchestia (Amphipoda: Talitridae) with description of a new species from the tropical west Pacific

ABSTRACT The genus Talorchestia is redefined on the basis of new concepts advanced by Bousfield (1982). It comprises 4 Indo-Pacific species: Talorchestia gracilis, T. spinipalma, T. martensii, and a new species that is described from specimens from the Philippines and Queensland under the name of Talorchestia palawanensis, new species. This new amphipod is closely related to T. spinipalma, which is refigured.

Taxonomic Studies on the Talitridae (Amphipoda) from Taiwan, III. The Genus Floresorchestia Bousfield, 1984

In this third report of taxonomic studies on the Talitridae collected from the mainland and neighbouring islands of Taiwan, we herein treat the genus Floresorchestia Bousfield, 1984. Two new species (Floresorchestia anpingensis sp. nov. and F. yehyuensis sp. nov.) and one other species (F. anomala (Chevreux, 1901)) of the genus were collected from coastal habitats of the islands. F. anpingensis sp. nov. is separated from F. anomala by a 4½-dentate lacinia mobilis of the left mandible and the propodus of male gnathopod 1 with 3-5 bifid spines on the lateral surface. F. yehyuensis sp. nov. is separated from F. anomala by a 4-dentate lacinia mobilis of the left mandible and the propodus of female gnathopod 1 with 3 bifid spines on the posterior margin and surface of the lateral side. These Floresorchestia species all were found to occur south of 23.5°N in the Taiwanese islands. Dans ce troisieme rapport sur letude taxonomique des Talitrides recoltes dans lile principale et les iles voisines de Taiwan, nous traitons ici le genre Floresorchestia Bousfield, 1984. Deux nouvelles especes (Floresorchestia anpingensis sp. nov. et F. yehyuensis sp. nov.) et une autre espece (F. anomala (Chevreux, 1901)) du genre ont ete recoltees sur les cotes des iles. F. anpingensis sp. nov. est separe de F. anomala par une lacinia mobilis 4½-dentee de la mandibule gauche et chez les mâles par le propodite du gnathopode 1 avec 3-5 epines bifides sur la surface du cote lateral. F. yehyuensis sp. nov. est separe de F. anomala par une lacinia mobilis 4-dentee de la mandibule gauche et chez les femelles par le propodite du gnathopode 1 avec 3 epines bifides sur le bord posterieur et la surface du cote lateral. Ces especes de Floresorchestia ont ete trouvees au sud de 23,5°N dans les iles taiwanaises.