108 



EPICRATES 



5. Median dorsal spots bordered by black area 



which does not contact border of neighbor- 

 ing blotch 6 



Median dorsal spots fused laterally by 

 broad dark band 8 



6. Median dorsal spots not saddle-shaped 7 



Median dorsal spots saddle-shaped — harbour i 



7. Median dorsal stripe on head broken by a 



circumnuchal stripe; more than 24$ 



ventrals ass is i 



Median dorsal stripe on head fused with 

 circumnuchal stripe; -fewer than 240 

 ventrals polvlep i s 



8. More 'han 47 scale rows at midbody; 47-55 



Cauda is alvarez I 



Fewer than 47 scale rows at midbody; 3^~*5 

 Cauda Is— crassus 



5. Manchas medio dorsales aisladas por hordes 



negros que no contactan entre s T- 6 



Manchas medio dorsales fusionadas lateral- 

 mente por ancha banda oscura-- 8 



6. Sin manchas medio dorsales en forma de 



silla de montar- 7 



Manchas medio dorsales en forma de silla de 

 montar harbour i 



7. Estrfa medio cef^lica separada de la estr'a 



circunnucal; m^s de 245 ventrales ass i s i 



Estr'a medio cefalica fusionada con la cii — 

 cunnucal, menos de 240 ventrales- polylepis 



8. Mas de 47 hileras medio dorsales; 47-55 



Cauda les alvareri 



Menos de 47 hileras medio dorsales; 3''~^5 

 Cauda les crassus 



Epicrates cenchria cenchria Linnaeus 



1525 Epicrates cenchria cenchria— Amaral, Mem. Inst. Butantan, 4; 77' 

 Distribution: Amazonian Basin; southern Venezuela and coastal Guianas. 



Ep icrates cenchria alvarez i Abalos, Baez and Nader 



1964 Epicrates cenchria alvarezi Abalos. Baez and Nader, Acta. Zool. Lilloana, 20: 218, fig. 3« 

 Type-locality: Forres, Depto. Robles, Santiago del Estero, Argentina. 



Distribution; Provincia de Santiago del Estero, Argentina. 



Ep icrates cenchria ass is i Machado 



1945 Epicrates cenchria assisi Machado, Bol. Inst. Vital Brazil, 27: 6I, fig. Type-locality; 



Campina Grande, Poraiba do Norte, NE Brazil. 

 1954 Epicrates cenchria xerophilus Amaral, Mem. Inst. Butantan, 26: 237. Type-locality: Rio 



Branco, Pernambuco, Brazil. 



Distribution: Piaui to northern Bahia in Caatinga region of Brazil. 



Ep icrates cenchria barbouri Stull 



1998 Epicrates cenchria barbouri Stull, Dec. Pap. Boston Soc. Nat. Hist., 8: 3OO. Type- 

 locality; Marajo Island, Para, Brazil. 



Distribution; Known only from type locality. 



Ed icrates cenchria crassus (Cope) 



1862 Epicrates crassus Cope. Proc. Acad. Nat. Sci. Phila., 1862( 345. Type-locality: Cadosa, 



Parana River, Paraguay. 

 1929 Epicrates cenchria crassus- — Amaral, Mem. Inst. Butantan, 4: 140. 



Distribution: Southern Braz il, Paraguay and northern Argentina. 



Epicrates cenchria ga i ge i Stull 



1998 Epicrates cenchria gaigei Stull. Occ. Pap. Boston Soc. Nat. Hist., 8: 258. Type-locality: 

 Buenavista, Santa Cruz, Bolivia. 



Distribution: Eastern lowlands of Bolivia and Peru. 



