~Sigmodon hispidus cienegae~ A. B. Howell
J. A. Allen (Bull. Amer. Mus. Nat. Hist., 5:28, March 16, 1893) listed as _Sigmodon hispidus arizonae_ Mearns one specimen from Granados, Sonora, at a time when _S. h. cienegae_ had not been named. We have examined the specimen (5389 AMNH) which has the skull inside and which lacks external measurements. It was taken on November 16, 1890, and is darker than specimens of _S. h. arizonae_ collected in September at Fort Verde, Arizona. The color is essentially as in specimens of _S. h. cienegae_ from Fairbank, Arizona (March-taken specimens). Because of this agreement in color and because of the geographic origin of the specimen from Granados, we refer the animal to _Sigmodon hispidus cienegae_.
Goodwin (Bull. Amer. Mus. Nat. Hist., 79:169, May 29, 1942) listed four specimens from Honduras (El Jaral, 2; and Las Ventanas, 2) as _Sigmodon hispidus saturatus_ Bailey. Because these localities fall within the geographic range of _S. h. zanjonensis_ we were lead to examine the specimens. Three are young and one (126113 AMNH from Las Ventanas) is an adult female. The underparts of the young are washed with rufous as in _S. h. saturatus_. The adult lacks this rufous as do specimens of _S. h. zanjonensis_ and some specimens of _S. h. saturatus_. In the adult the color of the upper parts and size of the upper cheek-teeth are intermediate between the dark-backed, small-toothed _S. h. saturatus_ and the paler-backed, large-toothed _S. h. zanjonensis_. The rostrum is intermediate in width but definitely nearer the broad condition which obtains in _S. h. saturatus_. The tail is long, actually and in relation to the body (total length 275, tail 130), as in _S. h. zanjonensis_ to which we refer the specimens in question.
For alleged occurrence at Reforma in Oaxaca, México (Goldman, N. Amer. Fauna, 43:31, September 23, 1918), see under _Oryzomys couesi mexicanus_ Allen.
Goldman (N. Amer. Fauna, 43, September 23, 1918) listed, as in the Field Museum of Natural History [= Chicago Natural History Museum] one specimen from Reforma, Oaxaca, under _O. c. mexicanus_ (p. 35) and one specimen from the same place under _O. c. couesi_ (p. 31). In the Chicago Natural History Museum we can find only one specimen. It is a young male, skull with skin, in which the last molar has not yet erupted, and bears the catalogue number 13654. It is, in our opinion, referable to _O. c. mexicanus_. Because we suspect that Goldman (_op. cit._) by error listed this one specimen twice (once under _O. c. couesi_ and once under _O. c. mexicanus_) it seems best to exclude Reforma, Oaxaca, from the geographic range of _O. c. couesi_.