(Wu et al., 1962)
The carapace pear-shaped; dorsal surface flattened but with an H-shaped rim and its margin defined by a raised rim. The rostrum is composed of three lobes, which are almost equal in size and among which the median one is somewhat lower in position. The antero-lateral margin not armed with teeth but with tubercles.
The epistome well defined, the antennules large and posterior to the eyes; the pterygostomian region undulate. The external maxillipeds slender and incompletely close the buccal cavern, and the lengths of their merus and ischium longer than width. The body and appendages are thickly covered with tomentum; chelipeds of male large and long but not longer than the adjacent ambulatory legs. Chelipeds of both sexes more or less asymmetry; all ambulatory legs very slender and filiform, the dactyli strongly curved and flattened. Abdomen of both sexes composed of 4 segments. No species of this genus was recorded in Taiwan and when Sakai first erected this genus, no type was designated though he transferred many species from their original genera to this new one as listed above. The specific name of this specimens now can not be decided until they have been compared carefully with one species of this genus. (Wu et al., 1962)
Range: Taiwan - Shihlin (Wu et al., 1962).