868 MONOGRAPHS OF NORTH AMERICAN RODBNTIA. 



1 uu i UX I II. — Measurements of three specimens of Spkrmophiltjs obsoi.f.tits. 



3234 

 3222 

 3144 



Locality. 



50 miles west of Fort Kearney. 

 230 miles west of Fort Kearney 

 Fort Laramie 



From tip of 

 doso to — 



1.35 



1.70 

 l.CO 



5.85 

 5.80 

 5.20 



Tail to enil 

 of- 



2.10 

 2.25 



2.35 



a 



3.45 



2.80 

 3.30 



Fresh. 



...do. 



...do. 



Table CXIV.— List of specimens examined of Spermophilus obsoletus. 





3252 

 3222 

 3S24 

 3225 

 3223 

 3140 

 3144 

 3382 

 3776 



47^5 

 4611 



isi:i 



? 

 9 



: ■ 



Locality. 



Black Hills, Dak 



50 miles west of Ft. Kearney 

 230miles westof Ft. Kearney 



do 



do 



Fort Laramie 



do 



do 



O'Fallon's Bluff, Utab . . . 



When 

 collected. 



Aug. 9,1857 

 Aug. 17, 1857 

 Aug. 17,1857 

 Aug. 17, 1857 

 Sept. 22, 1857 

 Sept. 30, 1857 

 Sept. 8,1857 

 July 17, 1858 



From whom re- 

 ceived. 



Gen. G.K.Warren. 

 W. M. F. Magraw . 



....do 



....do 



....do 



....do 



...do 



...do 



Capt. J. H. Simpson 



Collected by — 



Dr. F. V. Hayden.. 

 Dr. J. G. Cooper . . . 



...do 



...do 



...do 



...do 



...do 



C. Drexler 



C.S. McCarthy.... 



a 



Skin and skull. 



Skin. 



Skin and skull. 



Skin. 



...do. 



...do. 



Skin and skull 



Skull. 



...do. 



SPERMOPHILUS MEXICANUS (Liebt.) Wagner. 



Mexican Spermophile. 



T Sciurus mexicanus Erxleben, Syst. Anim. 1777, 428 (in part only, if at all. From Fernandez and 

 Seba, etc. Also Sciurus mexicanus of Schreber, Gmelin, Shaw, Fischer, and other early 

 compilers, based on the same). 



CiHllus mexicanus Lichtenstein, Darst. Sauget. 1827-34 (not paged), pi. xxxi, fig. 2. 



Spermophilus mexicanus Wagner, Suppl. Schreber's Sanget. iii, 1843, 250.— Brandt, Bull. PhyBico-matli. 

 Classe Acad. St. Pe"tersb. ii, 1844,380.— Schinz, Syn. Mamm. ii, 1845, 66.— Audubon & Bach- 

 man, Quad. N. Amer. iii, 1853, 39, pi. cix (exclusive of supposed young).— Giebel, Sauget. 

 1855, 638.— Baird, Mam. N. Amer. 1857, 319 ; U. S. and Mex. Bound. Surv. ii, pt. ii, 1859, 39.— 

 Ai.i.kn, Proc. Bost. Soc. Nat. Hist, xvi, 1874, 291. 



Sciurus tamaulipensis ISerlandier, MSS. 



f Tlamototli, Fernandez, Anim. 1051, 9. 



t Sciurus, rarimmue, ex -V..<,< ERspanid, hrniis albis, Seba, Thesa. i, 1734, 76, pi. xlvii, fig. 2. 



Specific chars. — Length of head and body 8.00 to 8.50 ; of tail to end 

 of vertebrae 4 00 to 4.50; to end of hairs about 5.75. Above, rather dark 

 yellowish-brown, varying to reddish-brown, with generally a decided tinge of 

 olivaceous and numerous rather distinct lines (generally either nine or eleven) 

 of subqnadrate spots of white; below, whitish, varying to yellowish-white on 



