CHECK LIST N. AMER. AMPH. KEPT. 101 



Thamnophis eques (Reuss) 

 Coluber eques Reuss 



Mus. Senckenberg. Abh., Vol. 1, 1834, p. 152, pi. 8, fig. 2. 

 Thamnophis eques Ruthven 



Bull. U. S. Nat. Mus., No. 61, 1908, p. 158. 

 Eutaenia eques Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 1049, figs. 291-293. 

 TYPE LOCALITY : Mexico. 

 RANGE : Arizona and New Mexico southward to Guatemala. 



Thamnophis hammondii (Kennicott) 

 Eutaenia hammondii Kennicott 



Proc. Ac. Nat. Sci. Phila., 1860, p. 322. 

 Thamnophis hammondii Stejneger 



N. Amer. Fauna, No. 7, 1893, p. 212. 

 Eutaenia elegans couchii (part) Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 1042, fig. 288. 



TYPE locality: San Diego and Fort Tejon, California. 

 RANGE : Southern California and northern Lower California. 



Thamnophis marcianus (Baird and Girard) 

 Eutainia mardana Baird and Girabd 



Cat. N. Amer. Rept., Pt. 1, 1853, p. 36. 

 Thamnophis marcianus Ruthven 



Bull. U. S. Nat. Mus., No. 61, 1908, p. 58. 

 Eutaenia elegans mardana Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 1044, fig. 289. 

 TYPE locality: " Red River, Arkansas " (Oklahoma). 

 RANGE : Oklahoma and Texas west to southeastern California, 

 northeastern Mexico. 



Thamnophis megalops (Kennicott) 

 Eutaenia megalops Kennicott 



Proc. Ac. Nat. Sci. Phila., 1860, p. 330. 

 Thamnophis megalops Ruthven 



Bull. TJ. S. Nat. Mus., No. 61, 1908, p. 44. 

 Eutaenia megalops Cope 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 1025, fig. 278. 



TYPE locality: Tucson and Sta. Magdalena, Arizona. 

 RANGE : The whole Mexican plateau region north to Arizona and 

 southwestern New Mexico. 



Thamnophis ordinoides ordinoides (Baird and Girard) 

 Tropidonotus ordinoides Baibd and Girabd 

 Proc. Ac. Nat. Sci. Phila., Vol. 6, 1852, p. 176. 



