Peromyscus perfulvus Osgood, 1945 . J. Mammal., 26:299.

TYPE LOCALITY: Mexico, Michoacan, 10 km W Apatzingan, 1040 ft .

DISTRIBUTION: Coastal lowlands of Jalisco and Colima, along Rio Balsas to interior Michocan and northernmost Guerrero, Mexico.

SYNONYMS: chrysopus .

COMMENTS: Placed with P. melanophrys group by Hooper (1968b), an association supported by electrophoretic data (Schmidly et al., 1985).