llf 



I 



IT 



!>! 





V. 



.t.l!M 



lir 



fir 



lii' '■< 



:t 



i I 



iil:t 



\i ii 



■lit''' 'ill 



r:l1l, f 



1 



r 

 111 



I p|i| lilHj 



864 MONOGRAPnS OF NORTH AMERICAN RODBNTIA. 



Taiii-k CVII. — JUeaturimfnlt of tiro ikulln of Spkrmopiiiliis thrkticadous. 



Loeallty. 



9419 

 IMS 



FortYunu,Cal., 

 do 



Table CVIII. — U»i of »p<cime»t txamined of SPKRMOPiiiLra TicnETicAi'iius. 



SPERMOPHILUS SPILOSOMA Bennett. 



. ;\-,,; 



Sonoran Spermophlle. 



SpermophJiit tpilotoma Bknnf,tt, Proc. Zocil. 8oc, i, 1833, 40 (" California").— BicnABDSON, Zo5I. Deecliey's 

 Voy. 18311, Mam. la*.— Waoner, Snppl. Scbrebor'n SUuget. iii, 1843, 251 (foot-note).— Audu- 

 bon &. Bachhan, Quad. N. Am. i>l. cix, folio ed.— Baihd, Proo. Acad. Nat. Sci. Pbila. ISif), 

 - • . 333; Main. N. An. 1857, 331 ; U. S. and Mex. Uonnd. 8arv. ii, pt. il, 1869, 39, pi. vii, fig. 3 



(head and feet). 



Spermophihia mcn'catiua AununoN & Bachhan, Qaad. N, Am. iii, 1853, 39 (in part). 



Upermophilui npiloioma var. tpiloioma Allen, Proo. Host. 8oc. Nat. Hist, xvl, 1874, SUl. 



Specific chars. — Length of liend and liody 6.50 to 7.00; of tail to end 

 of vertebriB 2 50 to 3.00; to end of hairs 3.25 to 3 75. Above, reddisii- 

 brown, with indistinct pubquadrate spots of wiiite, bordered posteriorly with 

 black. Tiie spots are most distinct on the hinder part of the back, and are 

 more distinct in the young than in the adult Beneath, white, varying to 

 strongly yellowish-white. Tail above colored like the back, with a single 

 broad subterniinal black bar, extending for only a short distance along the 

 sides; beneath, centrally, brownisli-yellow, with a black border edged with 

 ycllow'sh. The tail (vertebra' alone) is less than half the length of the body, 

 round, generally bushy only at the tip, and not distinctly distichous. The 



