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image of Journal of Crustacean Biology

ABSTRACT The ranges of the 17 subgenera of the genus Procambarus, comprising 152 species and subspecies occurring in North America and Middle America, are illustrated and briefly outlined. A graphical compilation of the distribution of these crayfishes is presented showing that the greatest number of species and subspecies occur in the southeastern United States, with a decline in numbers centrifugally to Mexico where two centers of concentration occur on the eastern versant: one north and the other south of the Cordillera Volcánica Transversal. Evidence is presented for a postulated Procambarus track extending from the eastern part of the United States southwestward through Mexico, and thence northeastward to Cuba.

Affiliations: 1: Department of Invertebrate Zoology, Smithsonian Institution, Washington, D.C. 20560


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