Neotoma albigula Hartley, 1894 . Proc. California Acad. Sci., Ser. 2, 4:157.

TYPE LOCALITY: USA, Arizona, Pima Co., vicinity of Fort Lowell, near Tucson .

DISTRIBUTION: Extreme SE California to S Colorado to W Texas, USA, south to NE Michoacan and W Hidalgo, Mexico.

SYNONYMS: angusticeps, brevicauda, cumulator, durangae, grandis, laplataensis, latifrons, leucodon, mearnsi, melanura, mêlas, montezumae, robusta, seri, sheldoni, subsolana, venusta, warreni, zacatecae .

COMMENTS: Subgenus Neotoma . Subspecific taxonomy updated by Hall and Genoways (1970). Hybridization suspected with N. micropus in Colorado (Finley, 1958) and apparent intergradation of the two in Coahuila (Anderson, 19696). Closely related to N. floridana and N. micropus (Birney, 1976), the three considered semispecies by Zimmerman and Nejtek (1977). See Macêdo and Mares (1988, Mammalian Species, 310).