114 



REPTILIA: SERPENTES: BOIDAE "^ "At EUNECTES 



EUNECTES Wagler 



1830 Eunectes Wagler, Nat. Syst. Amphib.: I67. Type-species: Boa mur ina Linnaeus. 

 Distribution: Venezuela and Colombia to Argentina. 



Content: Four species. 



Key to the species Clave de especies 



1. Scale rows at midbody AO-5O 2 1. Filas dorsales al medio del cuerpo, entre 



Scale rows at midbody 55-80 3 4O-5O 2 



Filas dorsales al medio del cuerpo, entre 



rc_Qn o 



2. Dorsal pattern with single series of large uni- 



formly black vertebral spots and with smaller 2. DiseRo dorsal con una hilera de grandes manchas 



lateral black spots deschauensee i negras vertebrales y con manchas laterales 



Dorsal pattern with two series of black verte- negras, pequerias deschauensee i 



bral blotches with lighter centers; vertical Oiseno dorsal en dos hileras de manchas negras 



black bands laterally notaeus con el centre no melanico; lateralmente fajas 



vert icales negras notaeus 



3. Dorsal spots with lighter centers harbour i 3' Manchas dorsales con centres claros harbour i 



Dorsal spots uniformly black mur i nus Manchas dorsales un i f ormemente oscuras-- murinus 



EUNECTES BARBOUR! Dunn and Conant 



1936 Eunectes harbour i Dunn and Conant, Proc. Acad. Nat. Sc i . Phila., 88: 5"*, pl. 1*, fig. 1. Type- 

 locality: Mara jo Island, mouth of Amazon River, Brazil. 



Distribution: Marajo Island, Brazil. 



EUNECTES DESCHAUENSEE I Dunn and Conant 



1936 Eunectes deschauensee i Dunn and Conant, Proc. Acad. Nat. Sc i . Phila., 88: 505> pl> 1*> fig- 2. 

 Type-local ity: Marajo Island, mouth of Amazon River, Brazil. 



Distribution: Marajo Island, Brazil. 



EUNECTES MUR I NUS (Linnaeus) 



1758 Boa mur i na Linnaeus, Systema Naturae, Ed. 10: 215- Type-locality: "America". 



1831 Eunectes mur i na — Gray, Synopsis Species Class Reptilia, in Griffith, Cuvier's Animal Kingdom, 



9: 96. 



Distribution: Venezuela and Colombia to Bolivia. 

 Content: Two subspecies. 



Key to the subspecies Clave de subespecies 



1. Postocular area enclosed in two dark 1. Area posocular entre dos Ifneas oscuras 



stripes same color as ground color of ,del mismo color que el cuerpo mur i nus 



body mur i nus Area posocular entre dos Ifneas oscuras 



Postocular area enclosed in two dark marcadamente mas clara que el cuerpo 



stripes markedly lighter than ground color q i gas 



of body q i gas 



Eunectes mur i nus mur i nus (Linnaeus) 



1758 Eunectes scvtale Linnaeus, Systema Naturae, Ed. 10: 214. Type-locality: Americas. 



1824 Boa aquatica Wied. Isis von Oken, 6: 664. Type-locality: Brazil. 



1936 [ Eunectes murinusj murinus — Dunn and Conant, Proc. Acad. Nat. Sci. Phila., 88: 5O3. 



Distribution: Amazonian drainage. 



