INDEX. XXI 



III. OPHIDIA— (continued). 



Deiidrophis, 54 

 Ahoetulla, 54 

 Drynius, 54 

 Dryolines, 54 

 Passerita, 54 

 Oligodon, 55 

 Tyria, 55 

 Malpolon, 55 

 Psammophis, 55 

 Coronella, 55 

 Xenodon, 55 

 Pseudoelaps, 55 



True Venomous Serpents, Acrochordus. 

 Gen. — Crotalus, 57 



Trigonocephalus, 58 

 Bothrops, 58 

 Cophias, 58 

 Tisiphone, 58 

 Crotalophorus, 58 

 Craspedocephalus, 58 

 Lachesis, 59 

 Gen. — Vipera, 59 



Echidna, 59 

 Vipera, 59 

 Colera, 59 

 Corra, 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. — Bungarus, 63 



Pseudoboa, 63 



Hydrus, 63 



Hydrus, 63 



Pelamis, 63 



Chersydrus, 63 [continued) 



VOL. II. c 



