( 10 ) 



Length 7 Indies, and perhaps more in old individuals. 

 Inhabits Kachar (P. A. S., B., March 1870, p. 68) and Cochin 

 China. 



NoTOCHELYS, Gray. 



N. platynota, Gray. Singapore. 



This species has not hitherto been recorded from British India 

 — vide Proc. As. Soc, Bengal, March 1874, p. 82. 



Family Emydidj^. 



Freshwater chelonians of small or medium size with sternum 

 and thorax united into a solid case, without either lateral or 

 transverse cartilaginous or unanchylosed divisions or joints. 



Aquatic. Sternum flat in both sexes or feebly concave in the 

 males. Feet webbed; claws five before, four behind. Habits 

 active, carnivorous. Zygomatic arch complete. 



Bellia, Oray. 



Shell solid, depressed, three-keeled in the young. Feet webbed ; 

 claws strong; five anteriorly, four posteriorly. Inner nostrils 

 subanterior ; zygomatic arch strong. 



E. crassilabris. Gray. Cat., S. K, 20 ; P. Z. S., 1861, p. 140. 

 E. nigra, Blyth. J. A. S., B., 1855, p. 713. 

 Bellia crassilabris, Gray. P. Z. S., 1869, p. 197. 



Nuchal plate very minute, triangular, with base in front plates 

 variable in shape with age, Vertebrals much contracted behind, 

 first 5-sided (Giinther says triangular), second, third, and fourth 

 4-sided, mushroom-shaped in the adult ; front side semi-circular 

 as long as a side and base. In young shells the vertebrals are 

 lozenge-shaped, quite unlike the adult form. Shell in adults 

 depressed, keelless; in the young, three-keeled. Colour, deep 

 clouded olive brown, tending to blackish above ; and below 

 without markings, but paler in spots. Grows to 7' 50 inches. 



Inhabits Tenassorim, Siam, and Sumatra. A seavanger in its 

 habits. 



