CHECKLIST OF THE SNAKES OF MEXICO 165 



Range. — Central Durango southward to the edge of the plateau in 

 central Michoacan, westward to southern San Luis Potosi and per- 

 haps western Mexico (recorded from the states of Colima, Durango, 

 Guanajuato, Jalisco, Michoacan, Nayarit, and San Luis Potosi) . 



THAMNOPHIS ORDINOIDES ERRANS Smith 



Thmnnophis ordinoides errans Smith, Zoologica, vol. 27, 1942, pp. 112-114. 



Type.—U.S.'^M. No. 46336. 

 Type locality. — Colonia Garcia, Chihuahua. 



Range. — Mountains of southern Chihuahua and Durango (known 

 only from the type locality and Coyotes, Durango). 



THAMNOPHIS ORDINOIDES HUEYI Van Denbnrgh and Slevin 



Thamnophis ordinoides huei/i Van Denbukgh and Slevin, Proc. California Acad. 

 Sci., ser. 4, vol. 13, 1923, p. 2.— Fitch, Univ. California Publ. Zool., vol. 44, 

 1940, pp. 43-46, pi. 4, fig. 5, pi. 7, fig. 4. 



Type.— C'Alif. Acad. Sci. No. 56855. 



Type locality. — Arroyo Encantado between La Grulla and La 

 Encantada, Sierra San Pedro Martir, northern Baja California. 



Range. — Sierra San Pedro Martir, Baja California, confined pre- 

 sumably to high altitudes. 



THAMNOPHIS PHENAX PHENAX (Cope) 



Eutaenia phenax Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 20, 1868, p. 134. 

 Thamnophis phenax phenax Smith, Zoologica, vol. 27, 1942, pp. 99-100. 



Type.—U.S.l^.M. No. 30499. 



Type locality. — Cordoba, Veracruz. 



Range. — Foothills of central Veracruz (recorded only from the type 

 locality, Potrero Viejo, Tequeyutepec, and "Alpine region, Orizaba," 

 YeTacruz; the vertical range of the species remains in doubt) . 



THAMNOPHIS PHENAX HALOPHILUS Taylor 



Thamnophis halophilus Tayloe, Herpetologica, vol. 1, 1940, pp. 183-187, pi. 19, 



text fig. 1. 

 Thamnophis phenax halophilus Smith, Zoologica, vol. 27, 1942, p. 100; Proc. 



U. S. Nat. Mus., vol. 93, 1943, pp. 482-484. 



Type.—E. H. Taylor-H. M. Smith Coll. No. 5560. 

 Type locality. — Seven miles north of Zacualtipan, Hidalgo. 

 Range. — Central Veracruz north to Hidalgo (known only from the 

 type locality, Tequeyutepec, and "Alpine region, Orizaba," Veracruz) . 



THAMNOPHIS RUFIPUNCTATUS (Cope) 



Chilopoma rufipunctatum Cope, in Yarrow, Wheeler's Rep. Geogr. Geol. ExpL 



Surv. W. 100th Mer., vol. 5, Zool., 1875, p. 544. 

 Thamnophis rufipunctatus Smith, Zoologica, vol. 27, 1942, pp. 120-121.— Smith 



and Mittleman, Trans. Kansas Acad. Sci., vol. 46, 1943, pp. 247-248. 



