28. COLUBER 



merous lizards found in the cactus belt. One specimen had 

 a full grown Dipsosaurus in its stomach. Another had 

 eaten a Cnemidophorus, and another, a mouse. A fourth 

 had the tail of a Dipsosaurus in its stomach. A fifth was 

 taken in a brush pile just after it had caught a Verticaria. 

 The tail of the lizard was protruding from the snake's 

 mouth. A specimen taken at San Jose del Cabo was six 

 feet in length. A cactus spine over an inch long was pulled 

 out of a specimen taken at IVIiraflores. 



Mr. Slevin found one near BIythe, Riverside County, 

 California, about six feet up in a mesquite where it was 

 swallowing a young dove which it had just removed from 

 the nest. 



146. Coluber anthonyi (Stejneger) 

 Clarion Island Racer 



Bascanion anthonyi Stejneger, Proc. U. S. Nat. Mus., Vol. 2j, 1901, 

 p. 715 (type locality, Clarion Island, Revilla Gigedo Islands, 

 Mexico); Van Denburgh, Proc. Cal. Acad. ScL, Ser. 3, Zool., 

 Vol. 4, No. I, 1905, p. 27; Van Denburgh & Slevin, Proc. Cal. 

 Acad. Sci., Ser. 4, Vol. 4, 1914, pp. 133, 147. 



Coluber anthonyi Stejneger & Barbour, Check List N. Amer. Amph. 

 Rept., 1917, p. 78. 



Description. — Head rather long, with flattened top. Eye 

 very large, its horizontal diameter equaling its distance from 

 nostril, or two-thirds length of frontal. Snout rather 

 prominent, the tip extending considerably beyond lower 

 jaw. Rostral large, prominent, portion seen from above 

 nearly equals length of suture between internasal or one- 

 half length of suture between prefrontals. Frontiil li-ng 

 and narrow, its greatest width anteriorly equaling that of 

 supraoculars, its width at a line between centers of eyes 

 much less than width of supraoculars at same line, its length 

 equals its distance from tip of snout and exceeds length of 



