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

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.

A new subfamily classification of the highly diversified Dorippidae H. Milne Edwards, 1837 (Crustacea, Decapoda, Brachyura, Dorippoidea), using morphological, molecular and palaeotonlogical data, with special emphasis on its unique female reproductive system

“…Neodorippe callida shows a wide distribution, ranging from Red Sea (Herklots 1861, as Dorippe astuta ) to Southeast Asia and China and having been also reported from Pakistan, India and Bangladesh (Alcock 1896, as Dorippe astuta ; Venkataraman et al 2004, as Dorippe astuta ; Dev Roy 2008; Roy & Nandi 2008; Trivedi et al 2018: table 1; Akash et al 2020), the Philippines, Vietnam (Dai & Song 1986, as Dorippe astuta ), Singapore (Ng & Tan 1986; Tan & Ng 1988, as Neodorippe ( Neodorippe ) astuta ); Vietnam (Do Van Nhuong et al 2021, as Neodorippe callida ); Malaysia (Zakirah et al 2022), western Indonesia, Thailand (Ng & Davie 2002) and South China (Chen 1986b; Chen & Sun 2002; Wong et al 2021). For more references, see Holthuis & Manning (1990: 95-103).…”