231 



OXYRHOPUS 



11. Dorsals in I7 rows; usually eight upper ll.Oorsales en I7 filas; usualmente ocho supra- 

 labials, fourth and fifth in orbit; subcaudals labiales, cuarta y quinta en la orbita; sub- 

 more than 75 leucomelas caudales mas de 75 leucomelas 



Dorsals in I5 rows; seven upper labials, third Dorsales en I5 filas; siete supralab iales, ter- 

 and fourth in orbit; subcaudals fewer than cera y cuarta en la orbita; subcaudales menos 

 55 marcapa tae de 55 marcapatae 



OXYi^HOPUS CLATHRATUS Dumeril, Bibron and Dumeril 

 dol ia tus group 



I854 Oxyrhopus clathra tus Dumeril, Bibron and Dumeril, Erp. Gen., ]: 1026. Type-locality: Brazil. 

 1503 Oxyrhopus dol ia tus var. v i per ina Werner, Zool. Anz., 26: 250- Type-locality: Brazil. 

 1923 Clel ia cla thra ta pulcherr ima Muller, Zool. Anz., 57= 153' Type-locality: Humboldt, Santa 

 Catar ina, Braz il. 



Distribution: Southeastern Brazil from southern Minas Gerais to Rio Grande do Sul and Misiones, 

 Argent i na. 



OXYRHOPUS DOLIATUS Dumlril, Bibron and Dumeril 

 dol ia tus group 



I85* Oxyrhopus dol iatus Dumeril, Bibron and Dumeril, Erp. Gen., 7* 1020. Type-locality: Brazil? 

 1913 Drepanodon erdisi i Barbour, Proc. Acad. Nat. Sci. Phila., I913: 5O6, pi. I7, figs. 3-4. Type- 

 locality: Machu Picchu, Peru. 



Distribution: Definitely known only from Cuzco Province, Peru. 



OXYRHOPUS FITZINGERI (Tschudi) 

 f i tz i nger i group 



I845 S i phloph i s F i tz inqer i Tschudi, Arch, fur Naturg., 11 (l): I65. Type-locality: Peru; further 



stated as coastal region of Peru by Tschudi, Fauna Peruana, Rept., 1846, 57> Pl- ^• 

 I863 O.|_ xyrhopusj F i tz i nger i — Jan, Elenco Sist. Ofidi: 93' 



Distribution: Coastal areas of Ecuador and Peru. 



Content: Two subspecies. 



Key to the subspecies Clave de subespecies 



1. More than 220 ventrals f i tz inqer i 1. Ventrales mas de 220 f i tz inqer i 



Fewer than 210' ventrals f r i zzell i Ventrales menos de 210 f r i zzell i 



Oxyrhopus f i tz i nger i f i tz inqer i (Tschudi) 



1943 Oxyrhopus f i tz i nqer i f i tz inqer i — Schmidt and Walker, Zool. Ser. Field Mus. Nat. Hist., 

 24: 312. 



Distribution: Coast of southern Peru. 



Oxyrhopus f i tz i nger i f r izzell i Schmidt and Walker 



1943 Oxyrhopus f i tz inqer i f r izzell i Schmidt and Walker, Zool. Ser. Field Mus. Nat. Hist., 

 24: 313' Type-locality: Negritos, Piura, Peru. 



Distribution: Dry Pacific lowlands of Ecuador and Peru. 



