m. OPmD]A—Cconfi>med). 



Dendiophis, 54 

 AhoetiiUa, 54 

 Drynius, 54 

 Dryolines, 54 

 Passerita, 54 

 Oligodon. 55 

 Tyria, 55 

 Malpolon, 55 

 Psammopliis, 55 

 Coronella, 55 

 Xenodon, 55 

 Psendoelaps, 55 



True Venomous Serpents, Acrochordus. 

 Ge7i. — Crotalus, 57 



Trigonocephahis, 58 

 Bothrops, 58 

 Cophias, 58 

 Tisiphone, 58 

 Crotalopliorus, 58 

 Craspedocephalus, 58 

 Lachesis, 59 

 Oen. — Vipcra, 59 



Echidna, 59 

 Vipera, 59 

 Colera, 59 

 C'orra, 59 

 Aspis, 59 

 Vipers, 59 

 Adders, 59 

 Pelias, 59 

 Sepedon, 59 

 Naias, 60 

 Elaps, 61 

 Micrurus, 61 

 Platurus, 61 

 Trimeresurus, 62 

 Oplocephalus, 62 

 Acanthophis, 62 

 Ophrias, 62 

 Echis, 62 

 Scytale, 62 

 Langaha, 62 



Venomous Serpents with crooked, accompanied with other, teeth. 



Gen. — Bungarua, 63 ■> 

 Pseudoboa, 63 

 HydruB, 63 

 Hvdrus, 63 

 Pelamis, 63 

 Chersydrns, 63 (conlimi^d) 



