Abstract
New records and extensions of the distribution range of seven species of porcellanid crabs, representing four genera, are reported in the West Indian Islands: Megalobrachium mortenseni, M. poeyi, M. roseum, Pachycheles ackleianus, P. riisei, Petrolisthes rosariensis and Porcellana sayana. The analyzed species are deposited in the National Museum of Natural History, Smithsonian Institution, and the American Museum of Natural History. It is provided new records from Bahamas, Jamaica, Haiti, Dominican Republic, Puerto Rico, Antigua and Barbuda, St. Vincent and The Grenadines and Trinidad and Tobago. Diagnostic characters and ecological notes are given for each species.Keywords: Biodiversity, Caribbean islands, range extension, porcelain crabs, west Indies.
Highlights
Porcelain crabs occur worldwide in intertidal and sublittoral zones of tropical and subtropical regions
The analyzed species are deposited in the National Museum of Natural History, Smithsonian Institution, and the American Museum of Natural History
Diagnostic characters and ecological notes are given for each species
Summary
Porcelain crabs occur worldwide in intertidal and sublittoral zones of tropical and subtropical regions. Most of them are free-living but few species live as commensals of other crustaceans, gastropods, polychaetes and echinoderms (Haig, 1960; Gore, 1982; Harvey, 1999; Hernández, 1999; Rodríguez et al, 2005; Hiller et al, 2006; Ferreira & Melo, 2016). From 30 genera and 277 species known worldwide (Osawa & Mclaughlin, 2010), 11 genera and 40 species are recorded for the West Indies (including the Greater Antilles, the Lesser Antilles and the Lucayan Archipelago). Seven species are recorded from additional localities and constitute new records for Bahamas, Jamaica, Haiti, Dominican Republic, Puerto Rico, Antigua and Barbuda, St. Vincent and The Grenadines and Trinidad and Tobago
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