The atyid shrimps of Fiji with description of a new species

Fourteen species of shrimps belonging to four genera of the family Atyidae are reported from the Fiji Islands. Three genera are represented by only one species each: Antecaridina lauensis (Edmondson, 1935), Atyoida pilipes (Newport, 1847) and Atyopsis spinipes (Newport, 1847) while the fourth, Caridina is represented by eleven species (including one new, Caridina devaneyi spec. nov. which is described and illustrated). Keys are provided to separate the genera and species. Two species, Caridina japonica De Man, 1892 and C. longirostris H. Milne Edwards, 1837 are recorded from Fiji for the first time. C. devaneyi spec, nov., C. fijiana Choy, 1983 and C. nudirostris Choy, 1984 are so far known only from Fiji and may be endemic to the island of Viti Levu. All three have relatively large eggs and are thought to undergo either direct or abbreviated larval development, thus resulting in their restricted distribution. Most of the other species recorded have a wide Indo-Pacific distribution.