with black and with a black line in center of rump; nape black in 

 summer: beneath white; pectoral collar and throat pale brownish 

 yellow; outer surface of fore legs ashy gray lined faintly with black; 

 hind feet white; whitish spot on head. Ear brownish yellow, usually 

 darker toward tip. Tail, above black, beneath brownish grav. 

 Ears, at base black, remainder yellowish, with tip whitish; whiskers 

 black. 



j\/easure»unts. Total length, 560; tail vertebra:, 57; hind foot, 

 142; ear, height posteriorly, 137. 



437. gaillardi. {Lrj>i/s), Mearns, Proc. Nat. Mus. Wash., 1S95, 



p. 560. 



Type locality. Plagas Valley, near its west fork. 



Geogr. Distr. Plain east of the San Luis Mountains, at the head 

 of the Rio Yaqui, and east of that river's watershed. Extent of range 

 unknown. 



Genl. Char. Similar to L. callotis, but more yellowish, ears 

 smaller; no black patch on nape. Skull: nasals long and very wide; 

 superorbital processes elevated, massive. 



Color. Head cream buff and black; whitish area about eye. 

 Nape ochraceous buff. Above paJe ochraceous cinnamon mixed 

 with black: rump and thighs white with a few black hairs; sides and 

 under parts white; limbs white washed with buff on outsides; gular 

 patch buff; gides of neck and front of shoulders ochraceous. Ears 

 yellowish brown mixed with black anteriorly; white posteriorly; tip 

 white; fringe on anterior edge ochraceous buff; of tips and posterior 

 edge white. Tail, above black with many white-tipped hairs; be- 

 neath white. But little difference between summer and winter 

 pelage. 



Measurements. Total length, 530; tail vertebra;, 77; ear from 

 crown, 146; hind foot, 131. 



438. merriami. {Lcpi/s), Mearns, Proc. Nat. Mus. Wash., 1895, 



p. 444. 



texensis, (texianus! Lepus), Aud. & Bach., N. Am. Quad., in, 

 1853, p. 156, pi. cxxxUl. (nee. Waterhouse.) 



Type locality. Fort Clark, Kinney County, Texas. 



Geogr. Distr. " Lower Gulf coast to mouth of Rio Grande and 

 up that stream to mouth of the Devil's River." 



Genl. Char. Similar to L. callotis; ears shorter and tipped with 

 black. 



Color. Above grayish fawn mixed with black; nape black; sides 

 of rump, thighs and legs grayish white lined with black; a black line 



