REPTILES OF THE PACIFIC COAST. 133 



usually present. Eyelids are rarely wanting. Femoral 

 and preanal pores may be either present or absent. 

 The limbs are rudimentary in some members of the 

 group. Two genera have been found in California. 



SYNOPSIS OF GENERA. 



a. — Two frontoparietal plates Cnemidophorus. — p. 13.3. 



a'''.— One frontoparietal plate Verticaria. — p. 140. 



Genus i8. CNEMIDOPHORUS. 



"Cnemidophorus, Wagler, Syst. Amph., 1830, p. 154 (part)." 



There are four pentadactyle limbs. The head-plates 

 are large, except the occipitals, which are small and 

 irregular. There are two frontoparietal plates. The 

 back and sides are covered with small, smooth, granular 

 scales. The ventral plates are large and arranged in 

 both transverse and longitudinal series. The legs and 

 tail are very long; the latter, slender and provided with 

 large scales, which are keeled above but smooth below. 

 The eye has well developed lids and a round pupil. 

 Large ear-openings are present. One strong and sev- 

 eral weaker folds cross the throat. Femoral pores are 



present. 



SYNOPSIS OF SPECIES.* 



a. — Markings on sides of head not well defined, almost obsolete; throat 

 often suffused with slate or gray C. tigris. — p. 134. 



a'^ — Markings on sides of head very distinct and well defined; throat not 

 (sometimes slightly in C. stejnegeri) suffused with gray or slate. 



*Prof. Cope has described (Trans. Am. Phllos. Soc, (2), XVII, 1892, p. 40, pi. IX, fig. 8) 

 Cnemidophorus seplemvittalus from a specimen said to have been collected by Dr. Boyle iu 

 El Dorado County, Cal., and now deposited in the United States National Museum. The 

 registers of this museum state, in Prof. Baird's handwriting, that the number 2872, 

 attached to this Cnemidophorui, belongs to two specimens of Sceloporus. These Scelepori, 

 properly numbered, are still on the museum shelves, and it therefore seems probable 

 that the type and only known specimen of Cnemidophorus seplemviUalus is not of Califor- 

 nian origin, but has been so labeled through an erroneous duplication of museum num> 

 bers. 



It maybe readily distinguished from the three Cnemidophori known to be Californian by 

 the presence of enlarged plates on the posterior surface of its forearm. 



