CHECKLIST OF THE SNAKES OF MEXICO 163 



ThamnopMs hammondU Van Denbtjkgh, Occ. Pap. California Acad. Sci., vol. 5, 

 1S97, pp. 212-214.— Fitch, Univ. California Publ. Zool., vol. 44, 1940, pp. 

 7S-S0, pi. 7, fig. 8 (head only). 



ry^e.— U.S.N.M. No. 894. 



Type locality. — Restricted to San Diego, Calif, (included "Fort 

 Tejon" also). 



Range. — Coastal slope west of summit of coast range divide, from 

 Monterey Bay, Calif., through Sierra San Pedro Martir, northern 

 Baja California. 



THAMNOPHIS MACROSTEMMA MACROSTEMMA (Kennicott) 



Eutaenia macrostemma Kennicx)tt, Proc. Acad. Nat, Sci. Philadelphia, vol. 12, 



1860, p. 331.— Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 18, 1866 (1867), pp. 



306-307. 

 Thamnophis macrostemma macrostemma Smith, Publ. Field Mus. Nat. Hist., 



zool. ser., vol. 24, 1939, pp. 29-30 ; Zoologica, vol. 27, 1942, p. 115. 

 Thamnophis macrostemma Beumwell, Trans. Kansas Acad. Sci., vol. 42, 1939 



(1940), pp. 423-429, pi. 1 (part). 

 Eutaenia flavihihris Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 18, 1866 (1867), 



p. 306 ( type locality, Tableland or Southern Mountains of Mexico ; cotypes, 



U.S.N.M. Nos. 2499-2). 

 Eutaenia m<icrostemma megalops Cope, U. S. Nat. Mus. Bull. 1, 1875, p. 41. 

 Eutaenia insigniarum Cope, Proc. Amer. Philos. Soc, vol. 22, 1884 (1885), p. 172 



(type locality, Chapultepec, Distrito Federal; type, U.S.N.M. No. 32163). 



ry;?e.— U.S.N.M. No. 7247. 



Type locality. — Mexico (city). 



Range. — The southern part of the central Mexican Plateau from 

 Nayarit to Veracruz; northern Oaxaca (known from the states of 

 Jalisco, Mexico, Michoacan, Nayarit, Oaxaca, Puebla, Veracruz, and 

 from Distrito Federal) . 



THAMNOPHIS MACROSTEMMA MEGALOPS (Kennicott) 



Eutaenia megalops Kennicott, Proc. Acad. Nat. Sci. Philadelphia, vol. 12, 1860, 



pp. 330-331. 

 Thamnophis megalops Van Denbuegh, Occ. Pap. California Acad. Sci., vol. 10, 



1922, pp. 852-855, pi. 94. 

 Thamnophis macrrostemma megalops Smith, Publ. Field Mus. Nat. Hist., zool. 



ser., vol. 24, 1939, pp. 30-31 ; Zoologica, vol. 27, 1942, p. 11.5. 

 Thamnophis stejnegeri McLain, Contributions to Neotropical herpetology, 1899, 



pp. 4-5, pi. (type locality, Salamanca, Guanajuato; type, Stanford Univ. Mus. 



No. 4032). 



Type.—U.S.'N.M. No. 965. 



Type locality. — Tucson, Arizona, and Santa Magdalena, Sonora. 



Range. — Mountains and elevated areas from western Texas west 

 to northeastern Baja California, southward along the western edge 

 of the Mexican Plateau to southern Durango ; eastward in the central 

 part of the plateau through Guanajuato and southern San Luis 



