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Free Content Crabs of the Genus Macrophthalmus of Phuket, Thailand (Crustacea: Decapoda: Ocypodidae)

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Abstract:

Collections of the crabs of the genus Macrophthalmus Latreille, 1829, made in Phuket, Thailand, during ecological studies of ocypodid crabs in 1987 and 1990 contain 12 species: M. boscii Audouin, 1826, M. brevis (Herbst, 1804), M. convexus Stimpson, 1858, M. definitus White, 1848, M. laevimanus H. Milne Edwards, 1852, M. milloti Crosnier, 1965, M. pacificus Dana, 1851, M. parvimanus Guérin-Méneville, 1834, M. quadratus A. Milne Edwards, 1873, M. serenei Takeda and Komai, 1991, M. teschi Kemp, 1919, and M. tomentosus Souleyet, 1841. For each species, a description and figures of the females and the males, notes on the coloration of living animals and their habitats, are provided. One new subgenus, Paramareotis, is proposed to accommodate M. quadratus (type-species), M. boteltobagoe Sakai, 1939, and M. erato De Man, 1888, species which had been assigned to the subgenus Mareotis Barnes, 1967. Accordingly, the diagnosis of Mareotis is emended. It is suggested that the morphologies of the chela and the shape of the female genital organs, and the shape of the telson are reliable characters for the identification of the females in this genus. A provisional key to the species, based on female characters, is proposed on the basis of the available materials.

Document Type: Research Article

Publication date: January 1, 1995

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