On the identity of Speocarcinus celebensis Tesch, 1918 (Decapoda, Brachyura, Pilumnidae) from Sulawesi

Abstract

Abstract The type of the poorly known pilumnid crab, Speocarcinus celebensis Tesch, 1918, is redescribed and figured. As Speocarcinus is now known to be a wholly American pseudorhombilid, the generic placement of this Tesch species has been in doubt. Ng (1987) provisionally assigned it to Viaderiana Ward, 1942, but Števčić (2011) decided to place it in a new monotypic genus, Bossacarcinus. The type is a poorly preserved subadult female, and not a male as originally reported. Bossacarcinus celebensis is likely to be a pilumnine, not a rhizopine, and is compared with allied genera like Viaderiana, Ser Rathbun, 1931, Heteropilumnus De Man, 1895, and Xestopilumnus Ng & Dai, 1996.