We provide an updated list of the Recent land mammals of Mexico and include information on the taxonomy of certain species, and where appropriate, the endemic and threatened status of all species listed. Several taxonomic and nomenclatural changes have been made since publication of the last list of the Mexican terrestrial mammalian fauna. Within the period from 2005 to present, there have been at least 209 changes concerning the nomenclature of this fauna; these we evaluated in this paper. The land mammals of Mexico comprise 168 genera, 496 species, and 881 subspecies.

Desde hace 10 años en que se publicó el trabajo de Ramírez-Pulldo et al. (1983), no se ha presentado una lista completa de las especies y subespccies de los mamíferos terrestres de México y en la cual se incorporen los cambios taxonómicos efectuados. Si bien es cierto queen trabajos posteritíres (Ramírez-Pulidoetal., 1986y Ramírez-PulidoyCastro-Campillo, 1990) se mencionaron los cambios taxonéimicos y las nuevas categorías específicas y subespecíficas que fueron publicados durante los lapsos respectivos, la forma como se ha presentadoesa información noperrnite identificar con prontitudladiversidad mastozoológica mexicana.

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a b s t r a c tSeveral authors have discussed whether Peromyscus furvus is a monotypic species rather than a polytypic entity, that it includes more than one species. Here, we analyze these questions by means of traditional morphometrics and by genetic analyses using ND3-ND4 mtDNA genes as markers. In spite of a generalized overlap of the measurable characters among populations, our analyses show that the northernmost populations, which was assignable to P. latirostris, consistently show larger dimensions overall. The amount of genetic differentiation revealed by our molecular data, support conclusive evidence to suggest this taxon is a valid species. Our results also disclose that morphometric and molecular segregation between P. furvus and P. angustirostris is still incomplete. Finally, the two populations from the state of Oaxaca showed more morphometric affinity with those attributable to P. furvus and revealed a discrete degree of genetic differentiation. Nevertheless, their systematic position is not clear yet.