49. BCELOPORTJS. 237 



■white ; the male with a large pink blotch on each side of the belly 

 (disappearing in .spirits) edged internally with blue. 



niilliin. milliiu. 



Total length 158 Fore limb ^2 



Head 17 Hind limb 51 



Width of head 14 Tail 88 



Body 53 



Mexico and Guatemala. 



a, b, c, d, e-ff, h-m. 



(5 , 5 , &; iigr. Mexico. 



w. c? . Jalapa. 



0. c? . Hacienda del Hobo, 



S. Mexico. r. Geddes, Esq. [P.]. 



p-q. § & bgr. Mountains of Huamelula. 



?■. 2 • San Gerouimo. O. Salvin, Esq. [C.]. 



22. Sceloporus siniferus. 



Scelopnrus siniferus, Cope, Proc. Am. Philos. Sue. xi. 18G9, p. 157, 

 and xxii. 1885, p. 394 ; J3ocourt, Jonini. Zool. v. 1876, p. 342. 



humeralis, Bucourt, Miss. Sc. Mex., Sept. p. 206, pi. xviii. bis, 



fig. 3. • 



Head-shields keeled or striated ; two cauthal scales ; a series of 

 four or five large transverse supraoculars ; occipital a little broader 

 than long; parietals much smaller, two on each side; anterior 

 border of ear very slightly denticulated. Lateral cervical fold 

 forming a deep pouch. Dorsal scales much larger than ventrals, 

 strongly keeled, sharph' pointed, forming nine or ten parallel longi- 

 tudinal series ; thirty-two to thirty-eight scales between the occipital 

 shield and the base of the tail ; seven or eight scales correspond to 

 the length of the shielded part of the head ; lateral scales smaller, 

 as large as ventrals, keeled, directed obliquely upwards ; ventrals 

 smooth, pointed-, not emarginate ; forty-four to forty -six scales round 

 the middle of the body. The adprcssed hind limb reaches the ear 

 or the eye ; tibia longer than the shielded part of the head ; the 

 distance between the base of the fifth toe and the extremity of the 

 fourth equals the distance between the end of the snout and the 

 cervical pouch. Four or five (three to seven) femoral pores. Caudal 

 scales as large as, or a little smaller than dorsals. No enlarged 

 postanal scales. Olive-brown above, with coppery gloss, sides darker ; 

 a yellowish dorso-lateral line frequently separates the dorsal from 

 the lateral surfaces ; a series of oblique blackish cross-lines along 

 each side of the back ; lower surfaces uniform yellowish in both sexes. 



millim. milliin. 



Total length 153 Fore limb 24 



Head 14 Hind limb 41 



Width of head .... 10 Tail 98 



Body 41 



Isthmus of Tehuantci^ec. 



a-h. 2 • Tehuautepcc. 



e. d". Oaxaca. M. Salld [C.]. 



