49. scELoroRrs. 219 



C. Lateral scales granular ; more than 9 



femoral pores -5. utlfonnis, p. 238. 



1. Sceloporus torqiiatiis. 



Tropidolepis torquatus, Grm/, Cat. p. 208. 



Sceloporus torquatus, Wietpn. lais, 1828, p. 3(59, and Herp. Mex. 

 p. 49, pi. vii. fig. 1 ; Bvcourt, Miss. 8c. Mex., Rept. p. 171 , 

 pi. xviii. %. 9; Cope, Pmc. Am. Philos. Soc. xxii. 188-"), p. 401. 



Agama toiquata. Green 4' Peale, Journ, Ac. Fhilad, vi. IS-JJO, p. 231. 



Tropidolepis torquatus, Gray, Griff. A, K. ix. Si/n. p. 43, and Zool. 

 Bceclieij's Voij. p. 95, pi. xxx. fig. 2 ; Dum. Sj- Bibr. iv. p. 301. 



Head-.sliields smooth ; a series of four or five transversely dilated 

 supraoculars, bordered internallj^ by a series of moderate-sized 

 scales ; usually two can thai scales ; occipital as long as broad, much 

 larger than the parietals, which are sometimes divided in two pairs ; 

 anterior border of ear with a strong denticulation formed by three 

 or four pointed scales, which are as large as or a little larger than 

 those preceding. Dorsal scales much larger than ventrals, as broad 

 as long, moderately keeled, with more or less distinctly denticulated 

 posterior border, not or but shortly mucronate, forming parallel 

 longitudinal series ; twenty-seven to thirty-four scales between the 

 occipital shield and the base of the tail ; five to seven scales, taken 

 in the middle of the back, correspond to the length of the shielded 

 part of the head ; lateral scales keeled, directed obliquely upwards 

 and backwards, as large as or slightly smaller than the dorsals ; 

 ventrals smooth, entire, or bi- or tricuspid ; thirty-eight to forty- 

 two scales round the middle of the body. The adpressed hind limb 

 reaches the cervical fold or the ear ; tibia as long as the shielded 

 part of the head ; the distance between the base of the fifth toe and 

 the extremity of the fourth equals or slightly exceeds the distance 

 between the end of the snout and the ear. Fifteen to twenty 

 femoral pores on each side. Caudal scales about as large as dorsals, 

 strongly mucronate. Male with large postanal scales. Olive above, 

 uniform or black-spotted ; a bioad, black, yellow-edged band from 

 shoulder to shoulder ; lower surfaces whitish or greenish in the 

 females, throat and breast spotted with blackish ; males witli the 

 throat and the sides of the belly cobalt-blue; the breast and median 

 ventral zone black or whitish. 



milliin. niillim. 



Total length 212 Fore limb 39 



Head 22 Hind limb 60 



Width of head .... 20 Tail 120 



Body 70 



Mexico. 



a. $, Plateau of Mexico. P. Cieddes, E.-q. [P.]. 



h. S • Hacienda del Hobo, S. Mexico. P. Geddes, Esq. [P.J. 



c-d, c. J ? • Mfxico. 



