(Opisthoglypha) Sitb-Family Dipsadinac. 



20 



40 Dipsas Barnesii 



41 ,, Ceylonensis 



42 ,, Forstenii 



21 



43 Dryophis Mycterizans 



44 ,, Pulverulentus 



22 



45 Chrysopelea Ornata 

 (Opisthoglypha) Sub-Family Homalopsinae, 



23 



46 Cerberus Rhynchops 



24 



47 Hypsirhina Enhydris 



(Proteroglypha) Sub-Family Elapinae 



25 _ 



48 Callophis Trimaculatus 



26 



49 Bungarus Ceylonicus 



50 ,, Caeruleus 



27 



51 Naia Tripudians 



VI. Viperidae. 



Sub-Family Viperinae. 



28 



52 Vipera Russellii 



29 



53 Echis Carinata 

 Sub-Family Crotalinae. 



30 



54 Ancistrodon Hypnale 



31 



55 Trimeresurus Trigonocephalus 



There are three snakes I have omitted to 

 enumerate, as their existence in Ceylon is doubtful ; 

 Gerardia Prevostiana, Ancistrodon Millardi, Tri- 

 meresurus Gramineus. 



Gerardia Prevostiana was accidentally recorded 

 from Ceylon, and its presence there denied by 

 Prof. Boulenger. 



