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Theresa A. Spradling, James W. Demastes, David J. Hafner, Paige L. Milbach, Fernando A. Cervantes, Mark S. Pocket gophers of the genus Orthogeomys show unusually high morphological and ecological diversity compared to other genera in the family Geomyidae. Recent studies have called into question the monophyly of Orthogeomys , as well as the validity of 4 currently recognized Orthogeomys species. To date, the taxonomic validity of only 1 of these species has been verified Hafner et al.
In this analysis, the first to include all 11 recognized species of the genus, we examine 3 mitochondrial and 2 nuclear gene sequences 4, base pairs and analyze cranial morphology to explore relationships within the genus. Our data support a taxonomic revision that restricts the genus Orthogeomys to a single species O. In addition, 3 currently recognized species of Orthogeomys are synonymized as follows: O.
A synonymy and a key to the species of the genera Orthogeomys and Heterogeomys are provided. The pocket gopher genus Orthogeomys Rodentia: Geomyidae is notable for its morphological and ecological diversity.
Size variation is impressive, with up to a 6-fold difference in mass among species, ranging from to g even within a single subgenus Macrogeomys — Hafner In 1 Oaxacan subspecies of O.