90 SPERMOPHILUS. 



ears light reddish brown; under parts wliitish tinged with sandy 

 brown. Tail, above like back, mixed with black, bordered and 

 tipped with whitish; beneath light reddish brown, indistinct subter- 

 minal black border and tipped with whitish. 



Measurements. Total length, 205; tail vertebra;, 50. 



122. spilosoma. (^Spennophilus), Bennett, Proc. Zool. Soc. , 1833, p. 40. 



mexicaniis, And. & Bach. Quad. N. Am., 1853, iii, p. 42, pi. cix. 



Type locality. California, near Mexican boundary. 



Geogr. Distr. Southern California to New Mexico (Fort Stan- 

 ton) and El Paso, Texas, south into Mexico. 



Gent. Char. Size small; ears verv short, tail about half the 

 length of body. 



Color. Above reddish brown spotted with white, bordered with 

 black posteriori}' in the young; under parts yellowish white. Tail, 

 above like back, with subterminal black bar, tip yellowish brown; 

 beneath brownish yellow, bordered with black and fringed with yel- 

 lowish. 



McasKreiiu-nts. Total length, 255; tail vertebrae, 75; hind foot, 32. 



a.~-inicrr)<tpilofii<i. [Sperinopliiliis), Merr., N. Am. Faun., No. 4, 

 1890, p. 38. 



Type locality. Oracle, Pinal county, Arizona. 



Geogr. Distr. Southern Arizona. 



Color. Above russet brown: dorsal spots white bordered pos- 

 teriorly with dusky; under parts whitish. Tail, above basal half like 

 back, remainder mixed buff and black, bordered with buff; beneath 

 pale ochraceous buff, with indistinct submarginal black band. 



Measurements. Total length, 220; tail vertebrae, 74; hind foot, 30. 



b. — major. {Spermophilus), Merr., N. Am. Faun., No. 4, i8go. p. 39. 



Type locality. Albuquerque, New IMexico. 



Geogr. Distr. Eastern New Mexico. 



Genl. Char. Size large, colors intermediate. 



Color. Above broccoli brown; dorsal spots indistinct, bordered 

 posteriori)' with dusky; under parts white. Tail, above pale reddish 

 brown on basal half, buff brown bordered with black and edged with 

 pale buff on remainder; beneath buff, bordered b\' indistinct black 

 band. 



Measurements. Total length, 234; tail vertebrae, 80; hind foot, 35. 



c. — pratensis. [Spermophilus], Merr., N. Am. Faun., No. 3, 1890, 



P- 55- 

 Type locality. San Francisco Mountain, Arizona. 

 Geogr. Distr. San Francisco Mountain, northwestern Arizona. 

 Genl. Char. Similar to S. spilosotna, but larger, darker. 



