SAURIANS OF THE LIAS. 
361 
and others, as the turtle, frequenting the ocean, so there may- 
have been formerly some saurians proper to salt, others to 
fresh water. The common crocodile of the Ganges is well 
known to frequent equally that river and the brackish and 
salt water near its mouth; and crocodiles are said in like 
manner to be abundant both in the rivers of the Isla de 
16 
