228 BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



*Sciurus nayaritensis Allen. 



1889. Sciurus alstoni Allen, Bull. Amer. Mus. Nat. Hist., vol. 2, 

 p. 167. October 21, 1889. (Not of Anderson, 1878.) 



1890. [Sciurus] nayaritensis Allen, Bull. Amer. Mus. Nat. Hist., 

 vol. 2, p. va, footnote. February, 1890. (Substitute for 

 alstoni Allen.) 



Type Locality. — Sierra Valparaiso, Zacatecas, Mexico. 



Range. — Pine and oak forests of the transition zone in the 

 Sierra Madre and outlying spurs of western Zacatecas, south- 

 ern Durango, eastern Tepic and southern Jalisco, Mexico, 

 Altitude, G,500 to 9,000 feet. 



* Sciurus apache Allen. 



1893. Sciurus apache Allen, Bull. Amer. Mus. Nat. Hist., vol. 5, 

 p. 29. March 16, 1893. 



Type Locality. — Mountains of northwestern Chihuahua (near 



Bavispe River?), Mexico. 

 Range. — Mixed oak and pine forests of transition zone in the 



Sierra Madre of western Durango and Chihuahua, eastern 



Sonora and northeastern Sinaloa, Mexico, and the Chiricahua 



Mountains of southern Arizona. 



t*Sciurus arizonensis arizonensis Coues. 



1867. Sciurus arizonensis Coues, Amer. Nat., vol. 1, p. 357. 

 1885. Sciurus arizonensis True, Proc. U. S. Nat. Mus., vol. 7 



(1884), p. 595. 1885. 

 Type Locality. — Fort Whipple, Yavapai County, Arizona. 



*Sciurus arizonensis huachuca Allen. 



1894. Sciurus arizonensis huachuca Allen, Bull. Amer. Mus. 

 Nat. Hist., vol. 6, p. 349. December 7, 1894. 



Ty'pe Locality. — Huachuca Mountains, southern Arizona. 

 Range. — ^Pine and oak forests of transition zone, in northeastern 

 Sonora, Mexico, and Huachuca Mountains, southern Arizona. 



* Sciurus hoffmanni hoffmanni (Peters). 



1863. Sciurus xstuans var. hoffmanni Peters, Monatsber. k. 



preuss. Akad. Wissensch. Berlin, p. 654. 

 1885. Sciurus xstuans rufoniger, True Proc. U. S. Nat. Mus., 



vol. 7 (1884), p. 595. 1885. 

 1899. Sciurus sestuans hoffmanni Nelson, Proc. Washington 



Acad. Sci., vol. 1, p. 98. May 9, 1899. 

 1920. S[ciurus] hoffmanni Goldman, Smiths. Misc. Coll., vol. 



69, No. 5, p. 138. April 24, 1920. 

 Type Locality. — Costa Rica. 

 Range. — Humid tropical forests of Costa Rica, south vaUey 



of upper Cauca River, Colombia. 



