CHECKLIST OF THE SNAKES OF MEXICO 55 



Type.—V.S.^M. No. 1862 and Acad. Nat. Sci. Phila. No. 3921, 

 cotypes. 



Type locality. — Eagle Pass, Tex. 



Range. — Central -southern Texas south to extreme northern Vera- 

 cruz and central Hidalgo (known in Mexico from several localities in 

 the states of Coahuila, Hidalgo, San Luis Potosi, Tamaulipas, and 

 Veracruz). 



DRTMARCHON CORAIS MELANURUS (Dameril. Bibron, and Dameril)» 



Bpilotes melanurus Dvut^iL, Bibron, and DuMrfeEiL, Erp4tologie g^n^rale, vol. 7, 

 pt. 1, 1854, pp. 224-225. 



Dnjmnrchon corais melanurus Ruth\'en, Misc. Publ. Mus. Zool. Univ. Michigan, 

 No. 8, 1922, p. 65.— Schmidt and Walker, Publ. Field Mus. Nat. Hist., zool. 

 ser., vol. 24, 1943, pp. 307-308. 



Drymarclion corais melanocerc^is Smith, Journ. Washington Acad. Sci., vol. 31, 

 1941, pp. 473-474, map fig. 2 (substitute name for Spilotes mclamirus Dum^ril, 

 Bibron, and Dum^ril, a secondary homonym of Coluber melanurus Schlegel, 

 1837 [=Elaphe mclanurxis (Schlegel)] by virtue of the inclusion of both 

 names in Spilotes by Gray [Catalogue of the snakes in the British Museum, 

 1858, p. 97] ) . 



Type. — Mus. Hist. Nat. Paris. 



Type locality. — Mexico. 



Range. — Atlantic coast in Mexico southward from northern Vera- 

 cruz, including Yucatan, through Central America to northern Colom- 

 bia (recorded from several localities in the Mexican states of Chiapas, 

 Oaxaca, Tabasco, Veracruz, and Yucatan). 



DRYMARCHON CORAIS ORIZABENSIS (Dnges) 



Morenoa orizabensis DuGis, Proc. Zool. Soc. London, 1905, pp. 517-518, fig. 77. 

 DrymarcJion corais orizabensis Smith, Journ. Washington Acad. Sci., vol. 31, 

 1941, pp. 477-478, map fig. 2. 



7"ype. — Museo Alfredo Duges, Univ. Guanajuato, Guanajuato, 

 Mexico. 



Type locality. — Orizaba, Veracruz. 



Range. — Atlantic foothills (not the coast) from near the Isthmus 

 of Tehuantepec northward about to Mirador, Veracruz (known from 

 but few localities in the state of Veracruz). 



genus Georgia, proposed on an earlier page (p. 92) of the same work, with O. couperi as 

 genotype (by monotypy). That Baird and Girard placed their initials after citation of the 

 name Georgia obsoleta finds a parallel on p. 148, where they place Tropidonotus t7-ansversu3 

 Hallowell in Nerodia, citing the name aa Nerodia transversa, B. & G. Apparently they 

 took credit for any new combination. These new combinations cannot be taken as new 

 names even if the specimens described are of a different (even new) species (as in the case 

 of Georgia oisolcta Baird and Girard) from that to which the original combination applied. 

 Article 31 of the International Code of Zoological Nomenclature clearly rules out names 

 resting upon errors of identification. 



^ Drymarchon corais melanocercus Smith to those who suppress secondary homonyms. 



