Four new records of crabs (Brachyura, Dorippidae, Galenidae, Portunidae, Xanthidae) from the Bay of Bengal, Bangladesh

Abstract

Abstract Charybdis lucifera (Fabricius, 1798), Demania reynaudii (H. Milne Edwards, 1834), Galene bispinosa (Herbst, 1783), and Neodorippe callida (Fabricius, 1798) are documented for the first time from the territorial waters of Bangladesh. Before this account, the families Dorippidae MacLeay, 1838 and Galenidae Alcock, 1898 were also unknown to the country. All specimens but Neodorippe callida were sampled from St. Martin’s Island, a sedimentary island on the continental shelf. We encountered N. callida from Dublar Char Island, a mangrove block extending into the Bay of Bengal. We collected D. reynaudii from a beach food stall, being displayed apparently unaware of the species’ toxicity, which seems not to be known in the region; the other species were sourced from artisanal seining activities. Here, taxonomic traits of these species are discussed respective to close congeners, and with necessary remarks on their locality.