Taxonomic Studies on Hyale (Crustacea, Amphipoda, Hyalidae) from the Coast of Japan and Adjacent Waters

Abstract

Material from the genus Hyale, family Hyalidae, collected from the coast of Japan and adjacent waters was examined for the present work. This study revealed seven species, among which five were new to science, two were new to Japan. Herewith new species: H. kajiharai sp. nov., H. nuda sp. nov., H. triangulata sp. nov., H. misakiensis sp. nov., and H. latimana sp. nov. were described, and H. aftinis Chevreux and H. honoluluensis Schellenberg were re-diagnosed. Hyale bassargini Derzhavin was redescribed based on the type material. In total the number of Hyale species of Japanese waters is 15. A key to the species of Hyale from Japanese waters is presented.