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Revista de Biología Tropical
On-line version ISSN 0034-7744Print version ISSN 0034-7744
Abstract
GARCIA-MADRIGAL, María del Socorro and BASTIDA-ZAVALA, José Rolando. Variaciones morfométricas de Pseudothelphusa belliana (Decapoda: Pseudothelphusidae) en Michoacán, México. Rev. biol. trop [online]. 1998, vol.46, n.4, pp.921-927. ISSN 0034-7744.
A total of 37 specimens of the freshwater crab Pseudothelphusa belliana were collected from four new localities in the state of Michoacan. Morphometric variation, specially carapace width ( = 48.7, S.D. = 3.3 for Chucutitán versus = 33.5, S.D. = 9.1 for the rest of specimens), shape of chela, coloration in vivo, and differences on gonopods of two geographically separate populations, suggest two subspecies or a cryptospecies complex. Diagnosis, habitat and distributional data are also included.
Keywords : Cryptospecies complex; Michoacan; morphometric variation; Pseudothelphusa belliana.