82 STEJNEGER AND BARBOUR, 1923 



Diadophis (GENUS) 



Baird and Girard, Cat. N. Amer. Rept., Pt. 1, 1853, p. 112 

 TYPE : punctatus 



RING-NECK SNAKES 



Diadophis amabilis amabilis (Baird and Girard) 



Diadophis amabilis Baird and Girard 



Cat. N. Amer. Kept., Pt. 1, 1853, p. 113. 

 Diadophis amabilis amabilis Blanch ard 



Occ. Papers, Mus. Zool. Univ. Michigan, No. 142, July 9, 1923, p. 3. 

 Diadophis amabilis Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 746, figs. 157, 160. 



TYPE locality: San Jose, California. 



RANGE : California, restricted to the region about San Francisco 

 and the San Joachin and Sacramento Valleys. 



Diadophis amabiUs occidentaUs Blanchard 



Diadophis amabilis occidentaUs Blanchard 



Occ. Papers Mus. Zool. Univ. Michigan, No. 142, July 9, 1923, p. 6. 



TYPE locality: Bridgeville, Humboldt Co., California. 

 RANGE : From Sonoma County, northward perhaps to the Co- 

 lumbia River. 



Diadophis amabilis pulchellus (Baird and Girard) 

 Diadophis pulchellus Baird and Girard 



Cat. N. Amer. Rept., Pt. 1, 1853, p. 115. 

 Diadophis amabilis pulchellus Blanchard 



Occ. Papers Mus. Zool. Univ. Michigan, No. 142, July 9, 1923, p. 8. 



TYPE locality: El Dorado County, California. 

 range: Western slopes of the Sierra Nevada, south perhaps to 

 Tejon Pass in California and north perhaps to southern Oregon. 



Diadophis amabilis simiUs Blanchard 



Diadophis amabilis similis Blanchard 



Occ. Papers Mus. Zool. Univ. Michigan, No. 142, July 9, 1923, p. 4. 



TYPE locality: San Diego, California (in litt.). 

 range : From southwestern San Bernadino County south into the 

 San Pedro Martir range in Lower California. 



Diadophis amabiHs vandenburghi Blanchard 



Diadophis amabilis vandenhtrghi Blanchard 



Occ. Papers Mus. Zool. Univ. Michigan, No. 142, July 9, 1923, p. 5. 



TYPE locality: Carmel, Monterey Co., California. 

 range: Ventura to Sta. Cruz County, California. 



