278 REPORT OF NATIONAL MUSEUM, 180S. 



versely, altliougli three or four of those in the inner lialf are Larger than 

 elsewhere. The phites in the loreal region between the can thus rostralis 

 and the labials in eight or nine rows; the labials, though imbricated, 

 are little oblique, and have the outer edge flattened and vertical instead 

 ofcarinated. Tlie pectinated processes of the lower eyelid are veiy 

 large and close. The lower labials are margined internally by several 

 series of llattened plates much larger than those on the middle line of 

 chin, and larger than those on the cheeks, which diminish above. Tlie 

 scales are excessively minute above, without appreciable difference in 

 size. They are generally much as in Holhroolda and Cidlisanrus^ except 

 that on the anteiior face of the humerus is one series of large, and three 

 or four of rather smaller, scales conspicuously larger than those adja- 

 cent to them. The scales anterior to the femoral pores are abruptly 

 smaller than those on the anterior edge of the thigh, 

 and scarcely larger than those behind the pores. 

 Tlierc are seventeen or eighteen femoral pores. 



The body of this species is depressed, the head 

 very broad and depressed, the profile plane ante- 

 riorly, though sloping rapidly. The muzzle is more 

 pointed than in the species of Callisaurns. The 

 ear is narrow and vertical and concealed, excei>t 

 for a short space below, by a fringe of three or four 

 large flattened triangular scales situated on the 

 extreme anterior edge of the aperture, with four or 

 Fig. 27. hve series of small tubercular scales between them 



uma notata baied. and the larger plates of the cheeks. Tlie scales on 

 Head from above. flie Central line of the breast are smaller than those 

 nearer the shoulders. 



X 3 



The legs are long, the hind foot about two-fifths 

 the head and body; the free portion of hind toe 

 about as long as the cephalic plates. The forefingers are unequal ; the 

 claws very long. The tail is evidently depressed to the leit; probably 

 as long as body. 



The color of this species is a light pea-green above, marked uni- 

 formly above by small spots of darker green, apparently arranged in 

 ten series. Interspersed with these are a few whitish spots, which may 

 perhaps be a lighter border behind of the green ones. The under jmrts 

 are white, a single rounded black spot being visible on the extreme 

 edge of the belly on either side, equidistant between fore and hind legs. 

 The chin is marked sharply with a few oblique spots of light blue; the 

 middle of the throat with more ' transverse ones of blue-black. The 

 tail is broken off, and it is impossible to say whether there are any 

 rings or black bands below. 



In general form this lizard differs much more from Callisaurus ven- 

 tralis than the latter does from Rolbroolia texana. The former has a 

 distinct ear opening, with the tympanic membrane very near the sur- 



Arizona. 



X 3. 



Type No. 4124, U.S.N.M. 



