Peromyscus merriami Mearns, 1896 . Preliminary diagnoses of new mammals from the Mexican border of the United States, p. 2; preprint of Proc. U. S. Nat. Mus., 19:138.

TYPE LOCALITY: Mexico, Sonora, Sonoyta, on Sonoyta River .

DISTRIBUTION: SC Arizona, USA, through Sonora to C Sinaloa, Mexico.

SYNONYMS: goldmani .

COMMENTS: Osgood (1909) synonymized merriami under P. eremicus but Hoffmeister and Lee (1963) documented their sympatric occurrence and morphological differentiation. Geographic variation evaluated by Hoffmeister and Diersing (1973), who retained goldmani as a subspecies. Bears close kinship to P. eremicus (Avise et al., 1974b; Lawlor, 1971«) and to P. pembertoni (Lawlor, 1971 a, 1983). P. eremicus species group.