189 



REPTILlA: SERPENTES: COLUBRIDAE i^ * MASTICOPHIS 



MASTICOPHIS Baird and Girard 



1853 Mast icoph is Baird and Girard, Cat. N. Amer. Rept.: 5^. Type-species: Mast icoph is ornatus Baird 

 and Girard. 



Distribution: Southern and western United States to northern Colombia and Venezuela. 



Content: Eight species, of which only one is found within limits of this work. 



MASTICOPHIS MENTOVARIUS Dumeril, Bibron and Ducneril 



ISJ* C[ orYPhodon J Mento-var ius Dumeril, Bibron and Dumeril, Erp. Gen., 7' I87. Type-locality: Mexico, 

 1523 Mast icoph i s men tovar ius — Ortenburger, Dec. Pap. Mus. Zool. Univ. Mich., 135- 2. 



Distribution: San Lui's Potosi and Guerrero, Mexico through Central America to Colombia and 

 Venezuela. 



Content: Three subspecies. 



Key to the subspecies Clave de subespecies 



1. Juveniles with longitudinal stripes, adults 1. Juveniles con cintas long i tudi nales, los 



may show stripes or be unicolor; nasal adultos pueden presentar bandas sen uni- 



divided 2 color; nasal dividida 2 



Juveniles with irregular transverse dorsal Juveniles con bandas dorsales, trans- 

 bands; adult color unl<nown; nasal entire-- versales, irregulares; color del adulto 

 central i s desconocido; nasal entera central is 



2. Juveniles with two lateral light stripes, 2. Juveniles con dos cintas laterales Claras, 



head in adults heavily mottled and cabeza del adulto intensamente moteada y 



spotted mentovar ius manchada mentovar ius 



Juveniles with four or more light stripes. Juveniles con cuatro mas cintas claras, 



head in adults immaculate suborb i tal is cabeza del adulto inmaculada-- suborbitalis 



Mast icoph i s mentovar ius mentovar i us Dumeril, Bibron and Dumeril 



1067 Bascan i on suboculare Cope, Proc. Acad. Nat. Sc i . Phila., 1866: 315' Type-locality: 



Between Coban and Clusec (corrected to Chisec by Stuart, I366), Guatemala. 

 1942 Mast icoph i s m[ en tovar i us j mentovar ius— Sm i th. Cope i a, 1942: 87. 



Distribution: Low and moderate elevations from San Luis Potosi, Mexico, to Honduras on 

 Caribbean slope and from Guerrero, Mexico, to Costa Rica along Pacific. 



Mast icoph i s mentovar i us central i s (Roze) 



1953 Coluber ( Mast icoph is ) mentovar i us central i s Roze, Herpetolog ica, '): II7. Type-locality: 

 Maicao, Guajira, Colombia. 



Distribution: Panama and northern Colombia to northwest Venezuela. 



Mast icoph i s mentovar ius suborb i tal i s (Peters) 



1868 Sp i lotes cora i s var. suborb i tal i s Peters, Monats. Akad. Wiss. Berlin: 641. Type- 

 locality: Caracas, Venezuela. 

 1942 Mast icoph i s mentovar i us suborbi tal i s — Smith, Copeia, 1942: 86. 



Distribution: Northern and southeastern Venezuela; Isla Margarita. 



