A new genus and species of pinnotherid crab (Crustacea, Decapoda, Brachyura) from Indonesia

Abstract

Seven specimens of Alain crosnieri n.g., n. sp., were taken off Maluku, Indonesia, in holothurians, genus Molpadia, during the KARUBAR Expedition 1991 in depths of 399-405 and 457-461 m. Alain crosnieri is unique among member of the Pinnotherinae in having only six abdominal somites in the male,with the second and third somites fused. It also is only the second member of the Pinnotherinae to be taken in depths greater than 400m and to be represented by an androgynous male.