THE SNAKES 



207 



Number 



of 

 species 



Genus Nothopsis 1 species 



Subfamily Colubrina (The typ- 

 ical harmless serpents). 

 Genus Polyodontophis 10 species 



Genus Dromicordyas 2 species 



Genus Xenochrophis 1 species 



Genus Prymnomiodon 1 species 



Genus Eutcenia 14 species 



Genus Tropidonotus 64 species 



Genus Seminatrix 1 species 



Genus Macropisthodon 3 species 



Genus Lioheterodon 2 species 



Genus Pseudoxenodon 3 species 



Genus Helicops 11 species 



Genus Hydraeihxops 1 species 



Genus Tretanorhinus 3 species 



Genus Opisthotropis 4 species 



Genus Tropidoclonium 1 species 



Genus Clonophis 1 species 



Genus Storeria 4 species 



Genus Amphiardis 1 species 



Genus Haldea 1 species 



Genus Streptophorus 3 species 



Genus Chersodromus 1 species 



Genus Hydrablabes 2 species 



Genus Trachischium 5 species 



Genus Rhabdops 2 species 



Genus Plagiopholis 1 species 



Genus Oxyrhabdium 2 species 



Genus Xylophis 2 species 



Genus Brachyorhhus 1 species 



Genus Elapoides 1 species 



Genus Achalinut 3 species 



Genus Haplocercus 1 species 



Genus Aapidura 4 species 



Genus Blythia 1 species 



Genus Pseudoxyrhopus 5 species 



Genus Lycognathophia 1 species 



Distribution 



Central America. 



Madagascar and Comoro 

 Islands; S. E. Asia; Cen- 

 tral America. 



Madagascar. 



S. E. Asia. 



Siam. 



United States and Mexico. 



New and Old World. 



Southeast United States — 

 Florida only. 



East Indies. 



Madagascar. 



East Indies; So. China. 



Trop. Amer.; S. E. Asia; 

 Africa. 



Tropical Africa. 



Central America; Cuba. 



Malay Arch.; So. China; 

 West Africa. 



Central U. S. 



Central U. S. 



U. S. to Central America. 



Texas. 



Eastern U. S. 



Central America; Northern 

 South America. 



Mexico; Guatemala. 



Borneo. 



Northern India. 



India; Southern China. 



Burma. 



Philippines. 



Southern India. 



Malay Pn.; New Guinea. 



Malay Pn. 



China and Japan. 



Ceylon. 



Ceylon. 



Northern India. 



Madagascar. 



Seychelles. 



