BOBENTI A— SCIUBDA E— SCIURUS A BERTI. 



115 



Fam. SCIUR1DAE. 



SOIURUS ABERTI, Woodhouse. 

 Tuft-eared Squirrel. 



ticiurus dorsalis, Woodh., Pr. A. N. Sc. Phil., vi, June, 1852, 110 (name pre-occupied). 



Sciurus aberti, Woodhouse, Pr. A. N. So. Phil., vi, Dec., 1852, 220; Sitgreave's Zufii 

 Exped., 1853, 53, mammals, pi. vi.— Aud. & Bach., Q. N. A., iii, 1854, 202, 

 pi. 153, f. 1.— Baied, Mamm. N. A., 1857, 267.— Cotjes, Am. Nat., i, 1S07, 

 355.— Coues, Proc. Acad. Nat. Sci. Phila,, 1807, 13-1.— Allen, Proc. Bost, 

 Soc, xvi, 1S74, p. — . 



Sciurus castanotus, Baird, Proc. Acad. Nat. Sci. Phila., 1855, 332 (typographical error 

 for castanonotus). 



tseiurus castanonotus, Bd., Mamm. N. A., 1857, 200.— Bd., Mex. B. Surv., ii, 1S50, 

 ma mm tils, 35, pi. 5. 



A fine specimen of this species of squirrel was obtained on the expe- 

 dition of 1872 on the southern slope of Bill Williams' Mountain. Several 

 others were secured, always in hilly districts. It was found to be very com- 

 mon in New Mexico and Arizona, and numerous specimens were secured 

 during the expeditions of 1873 and 1874. One specimen was taken in North- 

 western Colorado, which is probably its most northern limit. 



Specimens. 



No. 



Name. 



Locality. 



Date. 



Collector. 



Remarks. 



A 4 

 A 



17 



ioS 

 697 

 659 

 395 

 394 



S. aberti 



do 



do 



do 



do 



do 



Tierra Amarilla, Colo . . 

 Camp Apache, Ariz.. .. 

 Mt. Taylor, N. Mex... 

 Bowie, N. Mex 



Oct. 25, 1S73 

 Sept., 1S73 

 July 5, 1S73 

 Oct., 1S73 

 Sept., 1S73 

 do 



Lt.W. L. Marshall.. 



Dr. Loew 



Dr. Newberry 



do 



II. W. Henshaw 



do 



In flesh. 



Skin and cranium. 



Skin. 



In flesh. 



Skin. 



Do. 



Do. 



Do. 



do 



do 



do 



Santa F6, N. Mex 



do 



Aug., 1S74 

 do 



Dr. H. C. Yarrow... 

 do 











These specimens are particularly interesting', as they demonstrate a 

 hitherto unrecognized range of variation of the species. A part of them 

 have no trace of the dorsal chestnut stripe, usually conspicuous. In this 

 state, they are curiously similar to Sciurus fossor, though, of course, distin- 

 guishable by the tufted ears, dark lateral stripe, and other characters. The 

 amount of tufting of the ears is very variable, however ; the tufts being 



