866 



MONOGRAPHS OF NOUTJI AMERICAN KODENTIA. 



Table C1X. — Measurements of three skulls of 8rEKMOPHii.ua spilosoma. 



Table CX. — Measurements of fire specimens of Spekmopiiilus spilosoma. 



Table CXI. — List of specimens examined of Spf.rmophilus spilosoma. 



Locality. 



Chihuahua 



.do 



Janos, Sonora 



Fort Stanton, N. Mex. 



El Paso, Tex 



.do 



When 

 collected. 



Apr. 



— , 1855 

 — , 1855 

 — , 1852 

 — , 1852 



From whom received. 



J.Potts 



...do 



Maj. W. H. Emory . 



...do 



...do 



...do 



Collected by— 



J.Potta 



...do 



Dr.C.B.R. Kennedy 



Dr. T. C. Henry 



J.H.Clark 



...do 



Skin. 



Skin and skull. 



do. 



Skin. 



Skin and skull. 



do. 



. SPERMOPHILUS OBSOLETUS Kennicott. 



Kemiicott's Spermophile. 



Spermophilus obsohlus Kennicott, Proc. Acad. Nat. Sci. Phila. 1863, 157. 

 Spermqphilus spilosoma var. obsoletus Allen, Proc. Boat. Soc. Nat. Hist, xvi, 1874, 291. 



Specific chaks.— Size and form of S. spilosoma. Length 5.80 to 6.50; 

 tail to end of vertebrae 2.25 to 2.50 ; to end of hairs 3.00 to 3.50. Above, 

 dull yellowish-brown, indistinctly spotted with lighter, especially posteriorly, 



