208 



MICRURUS 



Micrurus eleqans veraepac i s Schmidt 



1533 Micrurus eleqans verae - pac i s Schmidt, Zool. Ser. Field Mus. Nat. Hist., 20: '}2. 

 Type-locality: Campur, Alta Verapaz, Guatemala. 



Distribution: Chiapas and southern Tabasco, Mexico, to Alta Verapaz, Guatemala. 



MICRURUS FILIFORMIS (Cunther) 



I855 Elaps f il i form is Gunther, Proc. Zool. Soc. London, 1859: 86, pi. 18, fig. b. Type-locality: 



Para, Brazil. 

 1925 Micrurus filiformis — Amaral, Proc. U.S. Nat. Mus., 67: I5. 



Distribution: Northern Amazon region, extreme southern Colombia to northern Peru. 



Content: Two subspecies. 



Key to the subspecies 



1. Two postoculars; ventral counts in males 



274-275 subtilis 



Usually one postocular; ventral counts in 

 males 283-3O9 filiformis 



Clave de subespecies 



1. Dos postoculares; ventrales en machos 



271-275 subtilis 



Usualmente una postocular; ventrales en 

 machos 283-305 filiformis 



Micrurus f i 1 if orm is fill form i s (Gunther) 



1567 Micrurus filiformis filiformis — Roze, Amer. Mus. Novitates, 2287: 22. 



Distribution: Northern Amazon region, extreme southern Colombia to northern Peru. 



Micrurus f il if orm is subt il is Roze 



1567 Micrurus f il iform i s subt il i s Roze, Amer. Mus. Novitates, 2287: 22, fig. 8. Type- 

 locality: Caruru, Rfo Vaupes, Colombia-Brazil boundary. 



Distribution: Provinces of Vaupes and Amazonas, Colombia. 



MICRURUS FRONTALIS (Oumlril, Bibron and Dumeril) 



18*54 Elaps Frontalis Dumeril, Bibron and Dumeril, Erp. Gen., ]: 1223. Type-locality: Corrientes and 



Misiones, Argentina. 

 1525 Micrurus frontalis — Amaral, Proc. U.S. Nat. Mus., (>]: I5. 



Distribution; .South America east of Andes, between 10°S and 35 S. 



Content: Four subspecies. 



Key to the subspecies 



1. More than nine triads 2 



Six to nine triads in both sexes 



pyrrhocryptus 



2. Subcaudals more than 18 in females; ven- 



trals usually fewer than 223 in males 3 



Subcaudals I6-I8 in females; ventrals 223" 

 242 in males bras i 1 i ens i s 



3- Ventrals usually more than 215 '" males; 

 parietals all black or with narrow light 

 band inferiorly, head with some black 



spots only 4 



Ventrals 152-216 in males; anterior part of 

 parietals with irregular light spot; 

 inferiorly, head blackened alt irostr i s 



Clave de subespecies 



1. Mas de nueve triadas 2 



Triadas seis a nueve en ambos sexos 



pyrrhocryptus 



2. Mas de 18 subcaudales en hembras; usual- 



mente menos de 223 ventrales en machos 3 



Subcaudales I6-I8 en hembras; ventrales 

 223-242 en machos brasi 1 iens is 



3. Usualmente mas de 215 ventrales en machos; 



parietales totalmente negras o con banda 

 clara angosta que las atraviesa; infe- 

 riormente cabeza con solo algunas manchas 



negras * 



Ventrales 152-216 en machos; parte anterior 

 de parietales con mancha irregular clara; 

 cabeza negruzca i nf er iormente- alt i rostr is 



