180 CALIFORNIA ACADEMY OF SCIENCES. 



elongate dark blotches on the nape, 



each lateral one being produced 



forward as a narrow band across the 



side of the face. These nuchal 



blotches often unite to form a dark 



transverse band or collar. The top 



of the head, the labials, and the 



geneials are spotted with brown. The gastrosteges are 



yellowish or white, immaculate. The urosteges are 



sometimes speckled with gray or brown. 



Length to anus 137 282 284 318 325 447 



Length of tail 21 60 56 47 60 76 



Distribution. — This little snake has been taken in 

 California at San Diego and in the Cuyamaca Mts., San 

 Diego County, at San Jacinto and Strawberry Valley 

 (5,000 feet). Riverside County, at Hesperia, San Bernar- 

 dino County, and in Shepherd Caiion, Argus Range, 

 Inyo County, 



Habits. — Unknown. Probably nocturnal. 



Genus 32. SALVADOR A. 



Salvadora B. & G. Cat. N. A. Kept., I, Serp., 1853, p. 104 (type 

 grahamise); Phimothyra, Cope, Proc. Ac. Nat. Sci. Phila., 

 1860, p. 566 (tj'pe grahamiae). 



The body is very long and slender, with long whip- 

 like tail. The head is distinct from the neck, large, 

 long, flat-topped, with truncate snout. Its plates are 

 normal, except the rostral which is very large and has 

 free lateral edges. The nasal plates are distinct. Two 

 preoculars, two postoculars, and a loreal are present. 

 Temporals are 1-2, 2-2, 2-3, or 3-3. The scales are 

 smooth, in seventeen rows, with two apical pits. The 

 anal plate is divided. Urosteges are in two series. The 

 eye is large, with round pupil. 



