First record of the deep-water xanthid crab genus, Pulcratis Ng & Huang, 1997, from the Indian Ocean, with description of a new species (Crustacea: Brachyura: Xanthidae)

Abstract

The monotypic xanthid crab genus Pulcratis Ng and Huang, 1997, previously known only from the South China Sea, is recorded for the first time in the Indian Ocean. The new material was collected by commercial trawlers fishing off the coast of Tamil Nadu state, in southeastern India, and represents a new species, herein described. Pulcratis amabilis n. sp. is similar to the only other congener and type species, P. reticulatus Ng and Huang, 1997, in the general form and fresh coloration, but differs mainly in the outline of the carapace, and morphology of the chelipeds, and the male pleon and gonopods. The subfamilial classification of Pulcratis within Xanthidae is also discussed.

Rare deep-water crabs (Crustacea: Decapoda) from Indian waters, with description of one new species

“…Nauplius, 29: e2021034 introduction The deep-water brachyuran fauna of India is moderately diverse and was substantially documented during the colonial era (Wood-Mason, 1885;1888;Wood-Mason and Alcock, 1891;1895;1896;1898;1899a;1899b;1900a;1900b;1901;Alcock and Anderson, 1894;1899;McArdle, 1900;1901;MacGilchrist, 1905;Lloyd, 1907;Kemp and Sewell, 1912). In comparison, the recently published literature revealed few reports on the deep-water Brachyura based on the collections of the deep-sea by-catch species along the peninsular coasts of India (Kumar et al, 2013;Ng and Kumar, 2015;2016;Mendoza and Devi, 2017;Ng et al, 2017a;2018a;2018b;Ng and Mitra, 2019;Mendoza et al, 2020).…”