18. CNEMIDOPHORUS 525 



upper surfaces of the limbs are brown or grayish olive, 

 spotted or obsoletely recticulated with black or dark brown. 

 The sides of the head and neck are marked with large, ill- 

 defined black blotches. The tail is grayish olive brown 

 above, darkest along the keels of its scales. The scales of 

 the central series on the lower surface of the tail are not 

 heavily marked with black. The lower surface of the body 

 is bluish, greenish or yellowish, with irregular black spots 

 or small blotches. The gular region is grayish or yellow, 

 usually with large, obsolete dark markings, which sometimes 

 form cross-bars. 



Length to anus . . 81 82 



Length of tail ._ 217 222 



Snout to ear 19 



Snout to interparietal . 16 



Width of head 12 12 



Fore limb . 31 



Hind limb 62 58 



Base of fifth to end of fourth toe 28 28 



Distribution. — This species was originally described 

 from three specimens from San Bartolome Bay and one from 

 Abrejos Point, Ballenas Bay, on the west coast of Lower 

 California, Mexico. No others have yet been taken. 



Remarks. — This lizard is closely related to C. rubidus, 

 C. t. stejnegeri and C. multiscutatus. I regard it as but 

 doubtfully distinct from the first named, but hesitate to ex- 

 press a definite opinion for the reason that I have seen only 

 one specimen (a paratype) from San Bartolome Bay. A 

 more or less indefinite median dorsal light stripe occurs in 

 a few specimens of C. t. stejneger and C. t. tessellatus, and, 

 more commonly, in C. rubidus and C. multiscutatus. C. 

 multiscutatus has much more black on the lower surfaces, 

 especially of the throat and tail. C. t. tessellatus usually 



