514 



MK. G. A. BOULBKGER ON THE 



[May 18, 



24. SOELOPOKUS JEXETJS. 



Scehjjorus emeus, Wiegm. Isis, 1828, p, 370, and Herp. Mex. 

 p. 52 (1834) ; Bocourt, Miss. Sc. JNIex., Eept. p. 205, pi. xviii. bis, 

 fig. 4 (1874) ; Cope, Proc. Am. Philos. Soc. xxii. 1885, p. 394 ; 

 Bouleug. Cat. Liz. ii. p. 233 (1885) ; Griinth. Biol. C.-Am., Eept. 

 p. 74 (1890). 



Tropiclolepis ceneus, Gray, Grriff. A. K. ix. Syn. p. 44 (1831) ; 

 Dum. & Bibr. Erp. Gen. iv. p. 309 (1837). 



Head-shields keeled or striated ; frontal transversely divided, in 

 contact with the interparietal, or separated from it by a small 

 azygous shield; parietals very small, or broken up into scales; 

 a more or less regular series of feebly enlarged transverse supra- 

 oculars, bordered inwards by one series of scales, and sepai^ated 

 from the supraciliaries by two or three series ; one or two canthal 

 scales ; anterior border of ear very slightly denticulated. 



Dorsal scales larger than venti-als, strongly keeled, sharply 

 pointed or tricuspid, forming parallel longitudinal lines : 39-44 

 scales between the interparietal shield and the base of the tail, 

 6-10 con-espondiug to the length of the shielded part of the head. 

 Lateral scales as large as or little smaller than dorsals, more or 

 less distinctly keeled, forming straight or very slightly oblique 

 longitudinal series. Ventral scales smooth, mostly bicuspid. 

 36-48 scales round the middle of the body. 



The adpressed hind limb reaches hardly the axilla or the shoulder ; 

 tibia shorter 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 anterior 

 or the posterior border of the ear. 14-19 femoral pores on each 

 side, meeting or narrowly separated on the prseaual region. 



Caudal scales as large as or a little larger than dorsals, strongly 

 keeled, sharply pointed. Males with enlarged postanal scales. 



(S • Puebla. Boucard 

 d ■ „ „ 



5 

 2 



5 . Orizaba 

 (5' Jalisco, N. of R. cle Santiago. 

 Smith 



2 



La Cumbre de los Arrastrados, 

 Jalisco. Buller 



H. Sta. Gertrudis, Jalisco. 



Buller 



Mexico, Boucard 



9. 



17-17 

 19-19 

 17-18 

 16-16 

 15-15 



18-16 

 18-17 



16-15 

 14-14 



15-15 

 17-16 

 15-15 



Olive, bronzy brown, or reddish brown above, uniform, or with 



