Peromyscus guardia Townsend, 1912 . Bull. Am. Mus. Nat. Hist., 31:126.

TYPE LOCALITY: Mexico, Baja California Norte, Angel de la Guarda Island, 29°33'N, 113°35'W .

DISTRIBUTION: Angel de la Guarda Island, Granito and Mejia Islands, N Gulf of California, Mexico.

SYNONYMS: harbisoni, mejiae.

COMMENTS: Status and relationships with respect to P. eremicus and P. interparietalis illuminated by Brand and Ryckman (1969), Lawlor (19716), and Avise et al. (19746). Formerly included P. interparietalis (see Banks, 1967). P. eremicus species group.