356 



COLUBEID^. 



About 100 scales round the middle of the body, dorsals largest. 

 Dark olive or blackish, with pale cross bands or anuuli, which may 

 become indistinct in the adult. 



Total length 3 feet 4 inches ; tail 4 inches. 



Fig. 104. 



- Chcrsydnis granulatus 



Hah. Moutlis of rivers and coasts of Southern India, Burma, 

 Malay Peninsula and Archipelago, and New Guinea. This snake 

 never leaves the water and occurs miles out at sea ; it is viviparous 

 and feeds on hsh. 



Series B. OPIS T H OGL YPH A. 



Posterior maxillary teeth grooved. 



Subfamily III. DIPSADIN.E. 



Nostrils lateral. Terrestrial or arboreal. 

 Kepresented in every part of the w orld. 



Sijnoj^sis of Indian^ Ccyloncse, and Burmese Genera. 



A. Posterior border of ventral shields ■with- 

 out lateral notch. 

 a. Only posterior grooved fang's of maxilla 

 enlarged ; scales of vtn-tehial row en- 

 larged; pu])il vertically elHptical. 

 a'. Head very distinct from neck Dipsas, p. 357. 



