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Systematic status of sylvilagus brasiliensis and sylvilagus insonus from north america






Journal of Mammalogy 62(3): 539-556

Systematic status of sylvilagus brasiliensis and sylvilagus insonus from north america

Geographic variation in S. brasiliensis (L.) and S. insonus Nelson from Mexico and Central America was reviewed by univariate and multivariate techniques. Rabbits currently referred to S. brasiliensis from the Cordillera de Talamanca of Costa Rica and Panama are referable to a distinct species, S. dicei Harris, 1932. S. brasiliensis occurs in the eastern and southern lowland tropics of Mexico south through Panama and is composed of 2 well-defined subspecies, S. b. truei (J.A. Allen) and S. b. gabbi (J.A. Allen) with a sharp zone of intergradation in southern Chiapas and Guatemala. S. b. consobrinus Anthony, S. b. messorius Goldman, S. b. tumacus (J.A. Allen) and S. b. incitatus Bangs are all regarded as synonyms of S. b. gabbi. Comparisons of S. brasiliensis, S. dicei and S. insonus indicate that S. brasiliensis and S. dicei are more closely related than either is to S. insonus.

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Accession: 006574229



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