508 



MK. G. A. BOULEKGEE ON THE 



[May 18, 



Caudal scales larger than dorsals, keeled. Males with enlarged 

 postanal scales. 



(J. Brit. Columbia. Lord 



(^ . Hemet Valley, S. Diego Co., Cal. 

 Gilbert. 



X • )J »» )» 



2. Puebla, Mexico. Boucard... 



4- • " )» ••• 



(j. Jalapa. Hoege (1) 



(1) Type of S.ja/apcs. The series of femoral pores separated by a single 

 scale on the prseanal region, as is likewise the case in one of the two females 

 from Puebla. 



Olive above, with two more or less distinct lighter or yellowish 

 stripes along each side, and longitudinal series o£ transverse 

 blackish spots which may be confluent into stripes. Male with 

 the sides of the belly blue and black-edged, the middle line white 

 and narrow or more or less broad ; throat blue, or whitish with a 

 few black spots ; front of arm and thigh sometimes black. Female 

 with the lower parts uniform white. 



Hah. S. gratiosus has a wide distribution. It is on recoi'd from 

 British Columbia, Oregon, California, Nevada, Utah, Arizona, 

 ]Northern Lower California, Vera Cruz, and Puebla. 



19, SCELOPOEUS GEAMMICrS. 



Scelopoms c/rammicKS, "Wiegm. Isis, 1828, p. 370, and Herp. 

 Mex. p. 51 (] 834) ; Bocourt, Miss. Sc. Mex., Eept. p. 192, pi. xviii. 

 bis, fig. 12 (1874) ; Cope, Proc. Am. Philos. Soc. xxii. 1885, p. 395 ; 

 Bodeng. Cat. Liz. ii. p. 231 (1885); Gunth. Biol. C.-Am., Eept. 

 p. 71 (1890). 



Sceloponis pleurostictus, Wiegm. Isis, 1828, p. 370. 



Trojiidolepis grammicus, Gray, Griff. A.K. ix. Syn. p. 43 (1831); 

 Dum. & Bibr. Erp. Gen. iv. p.'308 (1837). 



Sceloporns heterurus, Cope, Proc. Ac. Philad. 1866, p. 322. 



Head-shields smooth or slightly rugose; fi'ontal transversely 

 divided, in contact with the interparietal, which is a little broader 

 than long ; parietals small, usually one pair on each side ; a series 

 of four or five transversely enlarged supraoculars, bordered inwards 

 by one series of scales and separated from the supracUiaries by 

 two or three series ; two canthal scales ; anterior border of ear 

 feebly denticidated. 



Dorsal scales larger than ventrals, strongly keeled, not or but 

 slightly mucronate, forming oblique series ; 45-50 scales between 

 the interparietal shield and the base of the tail, 12-15 corre- 

 sponding to the length of the shielded part of the head. Lateral 

 scales keeled, directed obliquely upwards and backwards, gradually 



