SPERMOPHILUS. U7 



Color. Above russet hazel, spotted with white, bordered posteri- 

 orly with blackish; under parts whitish. Basal half of tail above 

 like back, remainder black bordered with yellowish brown; beneath 

 \ellowish, basal band of rufous, and subterminal black border. 



.\[easuremciils. Total length, 197; tail vertebra", 60; hind foot, 28. 



(1. obsidianus. (S/'i'/m<'/>/ii///s), Merr. , N. Am. Faun., No. 3, i8go, 



P- 55- 



Tj/c' locality. San Francisco Mountain, northwestern Arizona. 



Geogr. Distr. Cedar Belt, northeast of San Francisco Moun- 

 tain, Arizona. 



Genl. Char. Dark form of Spotted Spermophile. Similar to .V. 

 s. pratensis, longer hind feet and tail, and colors darker. 



Color. Above dull sepia brown; dorsal spots whitish. 



Measurements. Total length, igo; tail vertebr;e, 65; hind foot, 33. 



e.—annectans. (.S/>frmop/n7i(s), Merr., Proc. Biol. Soc. Wash., 1893, 

 p. 132. 



Type locality. Padre Island, Texas. 



Geogr. Distr. Mustang and Padre Islands, Texas; the former 

 island probably the northern limit of the subspecies. 



Genl. Char. Similar to .S". .f. major, but graj'er. 



Color. Above grayish brown spotted with buff}', margined pos- 

 teriorlv with dusky; under parts whitish. Tail like back, apical two- 

 thirds bordered with black, tips of hairs buffy ochraceous. 



.Measiirrmcnts. Total length, 220; tail vertebras 60; hind foot, 36. 



123. cryptospilotus. {Spcniiophilus). Merr., N. Am. Faun., No. 3, 



1890. p. 57. 



Type locality. Tenebito Wash, 25 miles east of the Little Colo- 

 rado, Arizona. 



Geogr. Distr. Painted Desert, Arizona. 



Genl. Char. Color pale, dorsal spots absent in worn pelago. 



Color. Above buffy clay color, sometimes tinged with vinaceous 

 cinnamon. Tail like back above, yellowish below with indistinct 

 subterminal black band. 



.\feasurements. Total length, 190; tail vertebra', 60; hind foot, 32. 



124. canescens. {.Spcrmophilt/s), Merr., N. Am. Faun., No. 4, 1890, 



p. 38. 



Type locality. Wilcox, Cochise county, Arizona. 



Geogr. Distr. Southeastern Arizona. 



Genl. Char. Similar to .S". spilosoma, ground color drab gray, no 

 fulvous; dorsal spots inclining to coalesce laterally. 



Color. Above drab gray and hoary; head and face hoary; back 

 covered with elongate whitish markings forming transverse bars. 



