Bioacoustics of Chlorodiella cytherea

Remarks. Chlorodiella cytherea was described by Dana (1852) from Tuamotu Archipelago, Tahiti and the Hawaiian Islands, and has subsequently been reported from the Hawaiian Islands to Madagascar . In external morphology, C. cytherea is almost indistinguishable from C. davaoensis Ward, 1941 and C. crispipleopa Dai, Yang, Song & Chen, 1986 . Dai et al. (1986: 342) provided a table of the distinguishing features of C. crispileopa and C. cytherea : i.e., carapace, front, second anterolateral tooth, and G1. However, examination of the extensive collection of this species from Christmas Island indicates that these features are variable. Even the G1, which is useful for identification of other chlorodielline species, varies from the distally “curled” C. crispipleopa form (e.g. RL 1) ( Dai & Yang, 1991: 341 , fig. 169(1)) to the distally “hook-shaped” C. cytherea form (e.g., RL 6, RL 17) ( Dai & Yang, 1991: 341 , fig. 169(4)). A G1 figure of C. davaoensis was not provided by Ward (1941) or since the original description. It is unclear whether these three species are distinct. Examination of the type specimens and material from the type localities is necessary to resolve this problem, and a systematic revision of this species complex and the Chlorodiellinae is being undertaken (RML & PKLN, in prep.). For the moment, the earliest name, C. cytherea , is attributed to the specimens reported here as they fit the original description of Dana (1852) . New CI, CK record.