250 



PLIOCERCUS 



Key to the subspecies Clave de subespecies 



1. All primary black rings complete around 1. Todos los anillos negros primaries 



body 2 completes alrededor del cuerpo 2 



Most primary black rings incomplete La mayor'a de los anillos negros primaries 

 ventrally lat icollar i s incompletes a ventral lat icellar is 



2. Black rings on body fewer than 14 3 2. Anillos negros del cuerpo menos de 14 3 



Black rings on body more than I3 salvini i Anillos negros del cuerpo mas de 13 



salv i n i i 



3. Dark margin present between yellow and red 3* '-'°" margen oscuro entre anillos amarillos y 



rings diastemas rojos diastemas 



No dark margin between yellow and red rings Sin margen oscuro entre anillos amarillos y 

 salvadorens i s rojos salvadorens is 



PI iocercus elapo i des d iastemus (BocourtJ 



1886 L ioph is elapoides var. diastema Bocourt, Miss. Sc i . Mex., Rept.: 636, pi. 41, fig. 8. 



Type-locality: Plateau of Guatemala. 

 1541 PI iocercus elapoides d iastemus — Sm i th, Proc. Biol. Soc. Washington, 54: 120. 



Distribution: Pacific slope of Chiapas, Mexico to El Salvador. 



PI iocercus elapoi des lat icollar is Smith 



1941 Pliocercus elapoides laticollaris Smith, Proc. Biol. Soc. Washington, 54: 122. Type- 

 locality: Tenosique, Tabasco, Mexico. 



1941 Pliocercus elapoides semicinctus Schmidt, Zool. Ser. Field Mus. Nat. Hist., ii: y^d. 

 Type-locality: Double Falls, west of Stann Creek, British Honduras. 



Distribution: Tabasco, Mexico to British Honduras, excluding Yucatan Peninsula. 



Comment! Stuart, Misc. Publ. Mus. Zool. Univ. Mich., 122, I563, 110, does not regard 

 this subspecies as valid. 



PI i ocercus elapo i des salvadorens i s Mertens 



1552 PI i ocercus elapo 1 des salvadorens i s Mertens, Zool. Anz., 148: 51' Type-locality: F i nca 

 San Jose, Santa Tecla, Departamento La Libertad, El Salvador, II5O m. 



Distribution: Departamento La Libertad, El Salvador. 



PI i ocercus elapo i des salv i n i i Muller 



I878 Pliocercus Salvini i Muller. Verb. Naturforsch. Ges. Basel, 6: 7O9, pi. 2A. Type-locality: 



Verapaz, Guatemala. 

 1548 PI i ocercus elapo i des salv i n i i — Stuart, Misc. Publ. Mus. Zool. Univ. Mich., 6^: 71* 



Distribution: Low and moderate elevations in central and northern Guatemala. 



PLIOCERCUS EURYZONUS Cope 



1862 PI iocercus euryzonus Cope, Proc. Acad. Nat. Sci. Phila., 1862: 72. Type-locality: Region of 

 the Truando, New Grenada; this is now Colombia. 



Distribution: Colombia, Ecuador, and equatorial Brazil to Guatemala. 



Content: Three subspecies, one of which ( b icolor Smith) is extral i m i tal. 



Key to the subspecies Clave de subespecies 



1. Red rings half scale row wide euryzonus 1. Anillos rojos del ancho de media escama 



Red rings more than two scale rows wide euryzonus 



aequal i s Anillos rojos de ancho mayor de dos 



escamas aequal i s 



