Abstract / Introduction / Summary:
![](https://journal.kagoshima-nature.org/archives/NK_047/images/047-015-1-300x225.jpg)
An endangered cavernicolous crab, Karstarma bo- holano (Ng, 2002), is recorded for the first time on the basis of a single female specimen collected from an anchialine cave on Yoron Island, central Ryukyus, Ja- pan. The habitat of the species is briefly noted.