164 CALIFORNIA ACADEMY OF SCIENCES. 



specimen from Fyffe, El Dorado County. It has not 

 been taken in the southern portion of California, but 

 ranges north across Oregon and Washington to Puget 

 Sound. 



Habits. Unknown. 



Genus 27. DIADOPHIS. 



Diadophis, B. & G., Cat. N. A. Kept., I, Serp., 1853, p. 112 (type 

 punctatus) . 



The body is slender, with long, tapering tail, and 

 slight constriction at neck. The head is flat-topped, 

 with broad, rounded snout. Its plates are normal. 

 The nasal plates very rarely unite above the nostril. 

 There are two preoculars and two postoculars. Tempo- 

 rals are 1-1. A loreal is present. The scales are 

 smooth, in fifteen or seventeen rows, each with one ap- 

 ical pit. The anal plate is divided, and the urosteges 

 are in two series. The eye is moderately large, with 

 round pupil. 



50. Diadophis amabilis Baird & Girard. WESTERN 

 RING-NECK SNAKE. 



Diadophis amabilis, BAIRD & GIRARD, Cat. N. A. Kept., Pt. I, Ser- 

 pents, 1853, p. 113 (type locality San Jose, Cal.); BAIRD, U. S. 



Pac. R. R. Surv., X, 1859, Pt. Ill, pi. XXXIII, figs. 83. 

 Diadophis pulchellus, B. & G., Cat. N. A. Rept., Pt. I, Serp., 1853, 



p. 115 (type locality El Dorado Co., Cal.); BAIRD, U. S. Pac. 



R. R. Surv., X, 1859, Pt. Ill, pi. XXXHI, figs. 85; STEJNEGER, 



N. A. Fauna, No. 7, 1893, p. 203. 

 Diadophis punctatus pulchellus, COPE, Proc. Ac. Nat. Sci. Phila., 



1883, p. 27. 

 Diadophis punctatus amabilis, YARROW, Bull. U. S. Nat. Mus., 24, 



1882, p. 95 (part); TOWNSEND, Proc. U. S. Nat. Mus., 1887, p. 



239. 

 Diadophis amabilis pulchellus, COPE, Proc. U. S. Nat. Mus., XIV, 



1891 (1892), p. 616. 

 Diadophis amabilis amabilis, COPE, Proc. U. S. Nat. Mus., XIV, 



1891 (1892), p. 616. 

 Coronella amabilis, BOULENGER, Cat. Snakes Brit. Mus., II, 1894, p. 



207 (part). 



