CHECKLIST OF THE SNAKES OF MEXICO 111 



PLIOCERCUS ELAPOIDES CELATUS Smith 



Pliocercus elapoides celatus Smith, Journ. Washington Acad. Sci., vol. 33, 1943, 

 pp. 344-345. 



Type.— Mus. Vert. Zool. (Univ. Calif) No. 24689. 

 Type locality. — Ciudad Victoria, Tainaiilipas. 



Range. — Southern Tamaulipas and probably northern Veracruz and 

 eastern San Luis Potosi (knoAvn only from the type locality). 



PLIOCERCUS ELAPOIDES DIASTEMUS (Bocourt) 



Liophis elapoides diastema Bocourt, Mission scientifique au Mexique et dans 

 I'Am^rique centrale, Rept., livr. 10, 18S6, pp. G3G-637, pi. 41, fig. 8. 



Pliocercus elapoides diasternus Smith, Proc. Biol. Soc. Washington, vol. 54, 1941, 

 pp. 120-121 ; vol. 55, 1942, p. 164. 



Type. — Mus. Hist. Nat. Paris. 



Type locality. — Plateau of Guatemala. 



Range. — Pacific slopes of southern Chiapas and Guatemala (re- 

 corded in Mexico from Chicharras, the vicinity of Escuintla, and 

 Monte Cristo, Chiapas, and Santa Efigenia, Oaxaca). 



PLIOCERCUS ELAPOIDES LATICOLLARIS Smith 



LiopJiis elapoides elapoides Bocoukt (nee Cope), Mission scientifique au Mexique 



et dans I'Amerique centrale, Rept., livr. 10, 1886, pp. 635-636 (part), pi. 41, 



fig. 6. 

 Pliocercus elapoides laticollaris Smith, Proc. Biol. Soc. Washington, vol. 54, 1941, 



pp. 122-123; vol. 55, 1942, p. 160 

 Pliocercus elapoides semicinctus Schmidt, Publ. Field Mus. Nat. Hist, zool. ser., 



vol. 22, 1941, pp. 502-503 (type locality. Double Falls, west of Stanu Creek, 



British Honduras; type, I. T. Sanderson No. 805). 



Type.—V. S. N. M. No. 110767. 



Type locality. — Tenosique, Tabasco. 



Range. — Atlantic slopes of the Isthmus of Tehuantepec east into 

 British Honduras, excluding most of the Yucatan Peninsula (known 

 in Mexico from Macuspana, Teapa, and Tenosique, Tabasco). 



PLIOCERCUS ELAPOIDES SCHMIDTI Smith 



Pliocercus elapoides schmidti Smith, Proc. Biol. Soc. Washington, vol. 55, 1942, 

 pp. 161-162. 



Type.— Mus. Comp. Zool. No. 26843. 

 Type locality. — Chichen Itza, Yucatan. 



Range. — Northern and central Yucatan (recorded only from the type 

 locality and Tres Brazos and Encarnacion, Oampeche). 



Genus PROCINURA Cope 



Procinura Cope, Proc. Amer. Philos. Soc, vol. 18, 1879, p. 262. — Stickel, Proc. Biol. 

 Soc. Washington, vol. 56, 1943, pp. Ill, 128 (brief comments on characters 

 and status). 



