Sigmodontomys J. A. Allen 1897

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 : 1177

Sigmodontomys J. A. Allen 1897

Sigmodontomys J. A. Allen 1897 , Bull. Am. Mus . Nat. Hist., 9: 38.

Type Species: Sigmodontomys alfari J. A. Allen 1897

Species and subspecies: 2 species:

Species Sigmodontomys alfari J. A. Allen 1897

Species Sigmodontomys aphrastus Harris 1932

Discussion: Oryzomyini . Named as a genus but later viewed as a synonym of Nectomys ( Ellerman, 1941; Gyldenstolpe, 1932), usually ranked as subgenus ( Hershkovitz, 1944). Hershkovitz (1944:71) stressed the weakness of their association: "The apparent relationship of Sigmodontomys to Nectomys ... is probably attributable to an independant development … from the common oryzomyine stock rather than to a divergence from a … more recent Nectomys-like stock," an assessment later corroborated by other data ( Gardner and Patton, 1976; Hooper and Musser, 1964a). Gardner and Patton (1976) formally transferred Sigmodontomys to a subgenus of Oryzomys , and we continue to list it as genus, while urging the need to refine its specific contents and their relationships to Oryzomys proper. Cadena et al. (1998) reported a specimen as Sigmodontomys species indeterminate from the Chocó, SW Colombia.