6. CNEMIDOPHOR03. 367 



Yar. "bocourtii. Q'^'or'j 



Cnemidophonis sexHneatus, var. gularis, part., Bocou)-t, Miss. Sc. 

 Mv.v., Bepf. p, 278. 



Head sliort. Three parietals ; four supraoculars ; six supra- 

 ciliaries ; frenoorbital present or absent; a band of enlarged gular 

 scales across tbe throat ; mesopt3'chium with three rows of en- 

 larged scales, the posterior composed of nine to twelve, forming the 

 border of the collar. Dorsal granules larger than in C. se.vlineatas, 

 smooth. A'entrals in eight longitudinal and thirty-five transverse 

 series. Three large pra^auals, forming a triangle. Four rows of 

 brachials, anterior largest, continuous with the postbrachials ; two 

 or three rows of antebrachials, outer largest ; enlarged scales under 

 the forearm. 8ix or seven rows of femorals, one of w^hich is large : 

 tibials in three rows, outer largest. Femoral pores sixteen. Caudal 

 scales oblique, with straight keels, obtusely pointed posteriorly. 

 Olive above, with round yellow spots on the back, hind limbs, and 

 base of tail ; sometimes traces of six darker longitudinal lines on the 

 back, not interrupting the yellow spots ; throat yellowish ; belly 

 whitish, in both sexes spotted with blackish blue, which markings 

 may nearly entirely cover the ground-colour. 



millim. millim. 



Total length 310 207 



Head 24 21 



Width of head 17 13 



From end of snout to interparietal 



plate 16 15 



"Width at posterior corners of supra- 

 orbital regions 9'5 9 



From end of snout to fore limb .... 36 32 



From end of snout to vent lOO 87 



Fore limb 34 30 



Hind limb 64 61 



Tail 210 120 * 



California ; Mexico. 



u-b- S 2 ' California. 



c. c? . Mexico. 



Yar. tessellatus. 



Cnemidophorus sackii, Gi-aj/, Cat. p. 22. 

 Anieiva tessellata, S'ai/, in Loik/s Exped. l\ocl;y Mount, ii. p. 50. 

 Cncmidoplinnis sackii, Wicgin, Jlerp. Mc.r. p. 20 ; Pcfcrs, Mon. Berl, 



Ac. \Sm, p. 63. 

 tigris, Baird 8^- Cir. Proc. Ac. I'/iihid. 1852, p. GO, and in Stan.sb. 



Kipeci. Great Salt Lake, p. .'538, pi. ii., a»d U.S. Mc.r. Bound. 



Surv. ii., Btpf. p. 10, pi. xxxiii. 



* Tail rein'iKliirid. 



