REPTILES OF THE PACIFIC COAST. 59 



Indian Spring Valley, Pahrurap Valley, Pahranagat 

 Valley, Oasis Valley, Wadsworth, Dome Canon, Truckee 

 River) to Utah (St. George, etc.), Oregon (Dalles), and 

 Idaho (along Snake River). 



Habits. "The leopard lizard is chiefly a vegetarian, 

 feeding on the blossoms and leaves of plants; but is 

 also carnivorous, devouring the smaller lizards, horned 

 toads, and even its own kind, besides large numbers of 

 insects, as determined by the examination of many 

 stomachs."* It usually is sluggish, arid may be cap- 

 tured without much difficulty. 



12. Crotaphytus silus Stejneger. SHORT-NOSED 

 LEOPARD LIZARD. 



Crotaphytus silus, STEJN., N. A. Fauna, No. 3, 1890, p. 105 (type 

 locality Fresno, Calif.); Id., ibid., No. 7, 1893, p. 170. 



Description. This species is very similar to C. wisli- 

 zcnii, but has a much shorter and more truncate snout. 

 The greatest width of the head is equal to or greater 

 than the distance from the nostril to the ear-opening. 

 The distance between the nostril and the inner anterior 

 orbital angle is considerably less than the vertical 

 diameter of the ear-opening. 



"The coloration is also essentially different. In 

 C. silus the rounded dorsal spots are larger, especially 

 the two median rows, so that of the latter there is only 

 one longitudinal series between the light cross-bands. 

 The latter are very broad and distinct and do not seem 

 to disappear as the animal grows larger. In some speci- 

 mens the interspaces between the light bands are solidly 

 dark, the spots indicated only by somewhat ill-defined 

 patches of saturated ferrugiiieous." 



Distribution. "This species seems to be closely re- 



*N. A. Fauna. No. 7, ]893, p. 168. 



