48 



NELSON 



names were preoccupied and, overlooking Fitzinger's names, renamed 

 the species S. tvagneri} 



A typical specimen of S. poliopus (No. 68183 U. S. Nat. Museum) 

 from Cerro San Felipe, was sent to the British Museum for compari- 

 son with the type of Gray's Macroxus leucops^ and Mr. Thomas in- 

 forms me that it is exactly like one of the two cotypes (B. M. 58. 10. 

 23.4.) ; the other cotype differs only in being rather less rufous and not 

 so gray. 



Wagner's specimens were obtained by Karwinski, a botanical col- 

 lector who did much work on the Cerro San Felipe (a few miles north 

 of the city of Oaxaca) and as the original descriptions apply perfectly 

 to the squirrels of this part of the Cordillera of Oaxaca it is unques- 

 tionably the type locality. 



Speci?nens exa7nhied. — Sixteen : from Cerro San Felipe, Reyes, 

 Mt. Zempoaltepec, mountains near Ozolotepec, and Pluma, Oaxaca. 



SCIURUS POLIOPUS HERNANDEZI Nelson. 



Oak Woods Squirrel. 



Sciurus aJbipes quercinus Nelson, Proc. Biol. Soc. Washington, xii, pp. 15a 



151, June, 3, 1898 (not 6". quercinus Erxl., 1777). 

 Sciurus wagneri quercinus Allen, Bull. Am. Mus. Nat. Hist., N. Y., x, p. 



453, Nov., 1898. 

 Sciurus a/bipes /lernandezi NEhSOii, Science, NS.,viii, p. 783, Dec. 2, 1898. 



Type locality. — Mountains 15 miles west of City of Oaxaca, 

 Oaxaca, Mexico. Type no. 68202, U. S. National Museum, Bio- 

 logical Survey Collection. 



Distribution. — Pine and oak forests of Transition and Boreal zones 

 on mountains west of the Valley of Oaxaca and thence to Lower 

 Sonoran zone in southern Puebla and southeastern Guerrero, Mexico. 



Characters. — Back grayer than in S. poliopus., and intermixed with 

 yellow instead of rufous ; underparts white or buffy ; median band on 

 lower surface of tail usually grizzled yellowish gray. Pelage thick and 

 soft; tail large and bushy. Teats: p. l a. f i. \. 



Color. — Top of nose and fore part of crown grizzled gray washed 

 with blackish ; nape usually faintly yellowish, grizzled with black ; 

 rump patch rarely present ; rest of upperparts, including outside of 

 legs, pale gray mixed with pale yellowish; feet white; ears gray or 

 mixed gray and yellowish brown with well marked white basal patch ; 

 sides of head dingy grayish, sometimes shaded with brown between 

 eye and ear; ring around eye whitish; tail all around at base like 



iBull. Am. Mus. Nat. Hist., N. Y., X., pp. 453-4, Nov. 10, 1898. 



