Sigmodon (Sigmodon) alleni Bailey 1902

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 955-1189 : 1174

Sigmodon (Sigmodon) alleni Bailey 1902

Sigmodon (Sigmodon) alleni Bailey 1902 , Proc. Biol. Soc. Wash., 15: 112.

Type Locality: México, Jalisco State, Mascota, Mineral San Sebastián.

Vernacular Names: Allen's Cotton Rat.

Synonyms: Sigmodon (Sigmodon) guerrerensis Nelson and Goldman 1933 ; Sigmodon (Sigmodon) macdougalli Goodwin 1955 ; Sigmodon (Sigmodon) macrodon Goodwin 1955 ; Sigmodon (Sigmodon) vulcani J. A. Allen 1906 .

Distribution: W México, from S Sinaloa to S Oaxaca.

Conservation: IUCN – Lower Risk (lc).

Discussion: Subgenus Sigmodon , S. hispidus species group. Sister species to S. hirsutus according to phylogenetic interpretation of cytochrome b data ( Peppers and Bradley, 2000). The forms guerrerensis and vulcani appear to be proper synonyms of S. alleni , but the status of the Oaxacan populations described as macdougalli and macrodon deserves renewed study and confirmation. Formerly included planifrons according to Baker’s (1969) revision, here regarded as a species. See Shump and Baker (1978, Mammalian Species, 95).