Sigmodon hispidus Say and Ord, 1825 . J. Acad. Nat. Sei. Phila., 42:354.

TYPE LOCALITY: U.S.A., Florida, St. Johns River .

DISTRIBUTION: Peru and N. Venezuela to S.E. California, S. Nebraska, S. Virginia, and Florida (U.S.A.).

COMMENT: Formerly included arizonae and mascotensis; see Zimmerman, 1970, Publ. Mus. Mich. St. Univ. Biol. Ser., 4(9):389, and Severinghaus and Hoffmeister, 1978, J. Mammal., 59(4):868-870. Formerly included alstoni; see Husson, 1978:429. The status of the forms, assigned to hispidus, from C. and S. America is unclear; see Zimmerman, 1970:445, Dalby and Lillevik, 1969, Publ. Mus. Mich. St. Univ. Biol. Ser., 4:65-104, and Baker and Shump, 1978, Mamm. Species, 94:1-4. Reviewed by Cameron and Spencer, 1981, Mamm. Species, 158:1-9.

ISIS NUMBER: 5301410008054006001.