A new species of the genus Elaphoidella Chappuis (Copepoda, Harpacticoida) from a cave in the south of Thailand

in Crustaceana

Specimens of a new species, Elaphoidella sanoamuangae n. sp., were collected during an investigation of cave-dwelling copepods in a tourist cave in the Phuket mountain range, South Thailand, and the new species is described and depicted herein. Elaphoidella sanoamuangae n. sp. fits into Elaphoidella group VII sensu Lang (1948). The new species is most similar to E. schubarti Chappuis, 1936. The differential characters for females of the two species are: (a) the free margin of the anal operculum, (b) the number of ventral spinules on the anal somite, (c) the shape of the caudal rami, (d) the shape of the inner terminal caudal seta, (e) the segmentation of Endp P1, (f) the armature formula of Endp-2 P2-P4, and (g) the size of the setae on P5.

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