Scotinomys Thomas, 1913 . Ann. Mag. Nat. Hist., ser. 8, 11:408.

TYPE SPECIES: Hesperomys teguina Alston, 1877 .

COMMENTS: Peromyscine. Until diagnosed by Thomas, forms associated here had been affiliated with Akodon (e.g., Bangs, 1902). Revised by Hooper (1972); for other aspects of biology and systematics, see Hooper and Carleton (1976), Carleton et al. (1975), and Rogers and Heske (1984). Broadly affiliated with neotomine-peromyscines sensu Hooper and Musser (1964a); common ancestry with Baiomys proposed on the basis of morphological traits (Hooper, 1960; Hooper and Musser, 1964b; Carleton, 1980), a relationship weakened by karyological banding data (Rogers and Heske, 1984).