80 3. IGUANID^ 



supraocular regions. The tail is yellowish, grayish, or 

 brownish, marked with rings of brown. The lower sur- 

 faces are white, marked on the chin and gular region with 

 longitudinal or oblique lines of brown or bluish gray, and 

 with more or less numerous spots or vertical bars of the 

 same color on the sides of the body. 



Length to anus„_- ..._ 90 117 130 135 135 135 



Length to tail _181 220 265 250 258 258 



Snout to orbit 6 8 9 9 9 10 



Snout to ear- 16 20 22 24 23 24- 



Orbit to ear 4 5 6 6 6 7 



Fore limb 34 44 52 54 53 53 



Hind limb 71 87 92 94 92 93 



Base of fifth to end of 



fourth toe 30 36 37 38 36 37 



Variation. — Specimens of this lizard from the "Cape 

 Region" of Lower California show a tendency to have but 

 one row of scales between the rostral and nasal plates, while 

 those from northern Lower California, California and Ari- 

 zona usually have two rows. 



Distribution. — This subspecies seems to be confined to 

 the Cape Region of Lower California, Mexico, where it has 

 been secured at La Paz, San Jose del Cabo, Miraflores, San 

 Pedro, Triunfo, San Bartolo, Buena Vista, Santiago, Agua 

 Caliente, Cabo San Lucas, and Todos Santos, and on Cer- 

 albo Island, 



Habits. — Mr. Slevin states that this species was not noted 

 above 1 020 feet altitude and was particularly abundant close 

 to the coast. Among the sand dunes back of the beach at 

 San Jose del Cabo any number of specimens could be col- 

 lected. Their principal enemy seemed to be the red racer, 

 and two or three specimens of this snake when captured were 



