HERPETOLOGY OF LOWER CALIFORNIA. 



87 



has large plates below, and is covered elsewhere with 

 smooth flat scales which are somewhat larger than those 

 on the back. 



Variation. — There is great variation in the ground color 

 of the head and back. In some specimens it is pale gray 

 or creamy white, while in others the prevailing tint is a 

 dark seal brown. There are, however, some fairly con- 

 stant markings, brighter in young than in old individuals, 

 but apparently subject like the ground color, though to a 

 less extent, to modification in accordance with the amount 

 of light, or perhaps in obedience to the will of the animal. 

 These markings are of a deeper seal brown than the 

 ground color of the darkest individuals. A line originates 

 on the second labial plate, and, passing through the eye 

 and the upper end of the ear opening, runs for some dis- 

 tance along the neck. The upper surface of the head is 

 blotched and spotted, as are also the limbs. The tail has 

 about nine cross-bars on its upper surface. All the lower 

 surfaces are creamy white, slightly tinged with brown in 

 the darkest specimens. The scales are everywhere mi- 

 nutely punctulated with dark brown. 



Length to anus . . 



Tail 



Hind limb 



Fore limb 



Head to ear 



Snout to orbit . . . . 

 Diameter of orbit 



mm. 



mm. 



mm. 



45 



46 



35 



48* 



40* 



31* 



18 



18 



15 



15 



15 



11 



12 



12 



10 



5 



5^ 



4 



3^ 



. 3 



3 



mm. 

 42 



17 

 14 

 10^ 



4i 



3 



Phyllodactylus unctus has been previously recorded 

 from Cape San Lucas (the type locality), by Mr. Xantus; 

 from Triunfo, by Dr. Streets; and from La Paz, by 

 Messrs. Belding and Townsend. 



Reproduced. 



