Atyid shrimps (Crustacea: Decapoda: Caridea) of the Ryukyu Islands, southern Japan, with descriptions of two new species

Abstract

The freshwater atyid shrimps of Ryukyu Islands, southern Japan, are documented and discussed. A total of 21 species of freshwater shrimps, belonging to seven genera is reported. Two new species are here described and illustrated in detail. Caridina sakishimensis Fujino and Shokita, 1975, is synonymized with Caridina prashadi Tiwari and Pillai, 1971. S.ome previous records are revised, viz. Caridina weberi De Man, 1892a is referred to C. laoagensis Blanco, 1939; Neocaridina brevirostris reported from Ishigaki Island by Kubo (1941) is most probably an undescribed species. Caridina hainanensis Liang and Yan, 1983, from China and Caridina blancoi Chace, 1997, from Philippines are also synonymized with Caridina propinqua in the present study. © 2006 Taylor & Francis.