Additional records of Calcinus species (Decapoda: Anomura: Diogenidae) from French Polynesia with description of three new species and a key to Indo-West Pacific species of the genus

Abstract

Three additional hermit crabs belonging to the genus Calcinus are described from French Polynesia: Calcinus anani n. sp., from Tuamotu and Marquesas sublittoral waters (18/55-140 m); C. hakahau n. sp., from the Marquesas (18-55 m); and C. revi, a dwarf species from the Tuamotu. Coloration, one of the most important diagnostic characters for species of this genus, is illustrated for each species. The diagnosis of Calcinus gouti Poupin, 1997, previously known from a single specimen, has been amplified by observations made from a second specimen found in the collections of the Museum national d'Histoire naturelle, Paris. A key to the thirty Indo-West Pacific Calcinus species is presented.