I 



92 STEJNEGER AND BARBOUR, 1917 



Sonora (GENUS) 



Baird and Girard, Cat. N. Amer. Rept. Pt. 1, 1853, p. 117 

 type: semiannvlata 



Sonora episcopa (Kennicott) 

 Lamprosoma episcopum Kennicott 



IT. S. Mex. Bound. Surv., Vol. 2, 1859, Rept. p. 22, pi. 8, fig. 2. 

 Sonora episcopa Van Denbxjrgh 



Proc. California Ac. Sci., Ser. 4, Vol. 3, 1913, p. 411. 

 Chionactis episcopus Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 937, fig. 238. 



TYPE locality: Eagle Pass, and between San Antonio and the 



Rio Grande, Texas. 

 RANGE : Texas to southeastern California and the adjacent regions 



of Mexico. 



Sonora occipitalis (Hollowell) 

 Rhinostoma occipitale Hallowell 



Proc. Ac. Nat. Sci. PWla., Vol. 7, 1854, p. 95. 

 Sonora occipitalis Van Denburgh 



Proc. California Ac. Sci., Ser. 4, Vol. 3, 1913, p. 411. 

 Chionactis occipitalis Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 941, fig. 240. 



TYPE locality: Mojave Desert. 



range: Southeastern California, Arizona, Colorado 



Sonora semianmilata Baird and Girard 



Sonora semianmilata Baird and Girard 



Cat. N. Amer. Rept., Pt. 1, 1853, p. 117. 

 Chionactis episcopus isozonus Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 939, fig. 239. 



TYPE locality: Sonora, Mexico. 



range : Utah to Nevada, Arizona, southern Kansas and Texas. 



y Sonora taylori (Boulenger) 

 Contia taylori Boulenger 



Cat. Snakes Brit. Mus., Vol. 2, 1894, p. 265, pi. 12, fig. 3. 

 Chionactis taylorii Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 936. 



TYPE locality: Duval County, Texas, and Nuevo Leon, 



Mexico. 

 RANGE : Southern Texas and northeastern Mexico. 



