Sciurus colliaei Richardson, 1839 . Zool. Capt. Beechey's Voy., p. 8.

TYPE LOCALITY: "San Blas, Tepic, [Nayarit,] Mexico."

DISTRIBUTION: Mexico: WC coast including Sonora, Chihuahua, Sinaloa, Durango, Nayarit, Jalisco, and Colima.

SYNONYMS: nuchalis Nelson, 1899; sinaloensis Nelson, 1899; truei Nelson, 1899.

COMMENTS: Subgenus Sciurus (Hall, 1981:421) . Includes sinaloensis and truei (Anderson, 1962).