266 U. S. NATIONAL MUSEUM BULLETIN 205 



Sonoma County, north to Oregon line in Del Norte County; east to South Fork 

 Mountain, Trinity County, and Sherwood, Mendocino County (Grinnell, loc. 

 cit.) ; north into Curry County (Port Orford) , Oreg., and through Cascade Moun- 

 tain region of Oregon and Washington into British Columbia, including also 

 coast region at mouth of Fraser River, and north to Rivers Inlet (about lat. 

 51°30 / N.), about 60 miles northeast of Vancouver Island, where it meets the 

 range of vancouverensis without intergradation (Anderson, loc. cit.) . 



Tamiasciurus douglasii albolimbatus (J. A. Allen)* 



1890. Sciurus hudsonius calif ornicus J. A. Allen, Bull. Amer. Mus. Nat. Hist., 

 vol. 3, p. 165, Nov. 14, 1890. (Not Sciurus (Macroxus) californicus Les- 

 son, 1847.) 



1898. Sciurus douglasii albolimbatus J. A. Allen, Bull. Amer. Mus. Nat. Hist., 

 vol. 10, p. 453, Nov. 10, 1898. (Renaming of californicus Allen.) 



1940. Tamiasciurus douglasii albolimbatus Hayman and Holt, in Ellerman, 

 The families and genera of living rodents, vol. 1, p. 347, June 8, 1940. 



Type Locality. — Blue Canyon, Placer County, Calif. Range. — Entire Sierra 

 Nevada north from Taylor Meadow (near Kern County line), Tulare County, 

 and north through Lassen and Shasta regions to Oregon line; east at north to 

 Warner Mountains, Modoc County, and west through Siskiyou and Trinity Moun- 

 tains; thence south through higher, inner Coast Ranges to Sanhedrin Mountains, 

 Mendocino County, and Snow Mountain, Colusa County, Calif. (Grinnell, Univ. 

 California Publ. Zool., vol. 40, No. 2, p. 134, Sept. 26, 1933) ; also northward 

 in Oregon to Paulina and Maury in Crook County and eastward south of John 

 Day River to Strawberry Mountains in Grant County (V. Bailey, North Amer. 

 Fauna No. 55 (June) , p. 123, Aug. 29, 1936) . 



Tamiasciurus douglasii mearnsi (Townsend)f* 



1897. Sciurus hudsonius mearnsi Townsend, Proc. Biol. Soc. Washington, vol. 

 11, p. 146, June 9, 1897. 



1899. Sciurus douglasi mearnsi Nelson, Proc. Washington Acad. Sci., vol. 1, 

 p. 87, May 9, 1899. 



Type Locality. — Sierra San Pedro Martir, Baja California, Mexico. Altitude, 

 about 7,000 feet. Range. — Pine forest of Sierra San Pedro Martir, Baja Cali- 

 fornia, Mexico; reported as probably occurring also in Hanson Laguna Moun- 

 tains, Baja California, and in Laguna and Cuyamaca Mountains, San Diego 

 County, Calif. (Mearns, U. S. Nat. Mus. Bull. 56, p. 264, Apr. 13, 1907) . 



Genus MICROSCIURUS J. A. Allen 

 1895. Microsciurus J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 7, p. 332, Nov. 

 8, 1895. (Type, Sciurus alfari J. A. Allen.) 



Microsciurus alfari alfari (J. A. Allen) 



1895. Sciurus (Microsciurus) alfari J. A. Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 7, p. 333, Nov. 8, 1895. 

 1912. [Microsciurus] alfari Goldman, Smithsonian Misc. Coll., vol. 56, No. 36, 



p. 4, Feb. 19, 1912. 

 Type Locality. — Jimenez, Limon, Costa Rica. Altitude, about 600 feet. 

 Range. — Humid Tropical Zone forest regions of northeastern Costa Rica (Good- 

 win, Bull. Amer. Mus. Nat. Hist., vol. 87, p. 367, Dec. 31, 1946) . 



