EODENTIA— SUIUEID.^— SPEBMOPHILUS GRAMMDEUS. 121 



SPEEMOPHILUS GEAMMUEUS, (Say) Bach. 

 liioie-tniled Squirrel. 



S&urus grammurus, Say, Long's Exped. Eocky Mts., ii, 1S23, 72.— Hakl., Fd. Am., 



1S25, 181!.— Griff., Ad. Kingd., v, 1827, 255.— Fisch., Sju., 1829, 350. 

 Spermophilm grammurus, Bach., Churlesworth's Mag., iii, 18,'!!), 390. — Wagn., Suppl. 



Scbreb., iii, 1843, 253.— BAIKD, Proc. Acad. Nat. Sci. Phila,, 1855, 334; M. 



N. A., 1857, 310.— Coues, Am. Nat,, i, 18G7, 3G0.— Allen, Proc. Post. Soc. 



Nat. Hist,, xvi, 1874. 

 Spermopliilus couchii, Baikd, Proc. Acad. Nat. Sci. Pbila., 1855, 332. — Baird, M. N. 



A., 1857, 311 (melanotic). 

 SpermopMlus buckleyi, Slack, Proc. Acad. Nat. Sci. Pbila,, 1SG1, 314. 



Note.— The above synonymy is exclusive of the Pacific forms beecheyi and clou- 

 glassi. 



Specimens. 



No. 



Name. 



Locality. 



Date. 



Collector. 



Remarks. 



526 

 626 

 706 



X 

 X I 



1 105 



S. grammurus. . . 



do 



do 



do 



do 







1S73 

 1373 

 iS73 

 1S73 



II. W. Henshaw.. 



do 



do 



do 



..do . 



Skin. 

 Do. 



Skin and cranium. 

 Alcoholic. 



Do. 

 Skin. 



Do. 

 Alcoholic. 



Do. 





Oct., 

 Sept., 



do . 



Apache, Ariz 



do 



do 



do 



do 



Aug., 

 . do . 



lS73 



Dr.J.T. Rothrock. 

 do 



do 



do 



Gallinas Creek, N. Mex.. 



Oct., 



1874 

 1S74 



II. W. Henshaw.. 

 Dr. H. C. Yarrow. 



Found from Rocky Mountains to Mexico ; tolerably common. Prof. 

 S. F. Baird, in the work above quoted, states, with regard to this species, as 

 follows : " posterior half of upper portion of back having the white replaced 

 by pale yellowish-brown." This coloration is not at all normal, and is not 

 seen in young specimens, but is produced by the wearing away of the upper 

 ends of the hairs from the animal backing into his hole. This fact was 

 carefully observed by Mr. Henshaw, who procured several fine specimens. 

 Mr. Allen, in his paper already cited, gives S. couchii, Baird, and 8. buckleyi, 

 Slack, as synonyms of melanistic examples of this animal from Texas. 



" The rocky hill-sides, covered with volcanic debris, in the neighborhood 

 of Camp Bowie, Arizona, afford a home for numbers of this species, and in 

 our collecting - trips in this neighborhood we frequently saw them hurrying 

 away to their subterranean burrows, their utmost efforts to progress rapidly 



