IGUAUID-B. 



the median smaller ones. Head short, depressed, one and a half 

 times as wide as deep. Tail one and a half times the head and bodj\ 

 General colour light brown above, the belly white. Sides with 

 broad transverse bands of blackish.'' 

 California. 



7. Uta lateralis. 



Uta (rhyniatolepis) lateralis, Bvtdcng. Ann. ^ Mag. N. H. (5) xi. 

 1883, p. 342. 



Frontal transversely divided and in contact with the occij^ital ; 

 three or four large supraoculars ; three or four pointed scales form 

 a denticulation on the anterior border of the ear. A deep fold or 

 pouch on each side of the throat in front of the collar, not connected 

 by a distinct transverse fold. Body much depressed. A series of 

 very large strongly keeled scales on each side of the vertebral line, 

 where they are separated from each other by one or two series of 

 smaller keeled scales ; they are bordered externally by another series 

 of small keeled scales ; the size of one of these large scales much 

 exceeds that of the ventrals, and its length equals more than half 

 the diameter of the ear-opening. The rest of the back and sides 

 covered with minute granules ; a lateral series of irregular enlarged 

 keeled scales from the neck to above the hind limb. The adprcssed 

 hind limb reaches the ear or slightly beyond ; the enlarged scales on 

 the limbs smaller than the largest dorsals. Femoral pores, ten to 

 thirteen on each side. Tail about once and a half as long as head 

 and body ; upper caudal scales large, equal ; subcaudals keeled. 

 Upper surfaces grey, tinged with brown ; a yellowish-white streak 

 from the tip of the snout, along the upper lip and passing through 

 the tympanum, to the fore limb ; a Z-shaped black mark in front of 

 the arm, the posterior branch upon the latter, the anterior branch 

 on the neck, above the white streak ; a series of five or six oval or 

 subrhomboidal black spots along each side of the back ; flanks with 

 blackish and whitish spots ; limbs transversely barred with oblique 

 black lines ; the male's throat light bh;e in the middle, and the belly 

 of the same colour but with a median white zone. 



miilim. millim. 



'J'otal length 135 Fore limb 24 



Head 13 Hind Hmb 37 



^'idth of head 9-5 Tail 82 



Body 40 



"Western Mexico. 



a. S- Presidio. Hr. Ferrer [C.]. I .m >. 



h-e. (5 & hgr. Tres Marias Islands. Hr. Forrer [0.]. ( ^^^^^-^ 



8. Uta auriciilata. 



Uta auriculata, Cope, Froc. Bosf. Soc. JS'at. Hist. xiv. 1871, p. 303. 

 Frontal transverselv divided. A crest of short acute scales on the 



