MEMOIRS. ASIATIC SOC. BENGAL. II. 



Plate X. 



Fie. 63. 



B 



/.. : J '■.>-'"-;-.<■■>. 



c 



Fie. 66. 



Fig. 67. 



Survey of India Offices, Calcutta. 190S 



Pig. 63. Enhydris hardwickii. Showing the ill developed irregular ventrals. 

 ,, 66. A, B, C, Astrotia stokesi. 

 ,. 67. Astrotia stokesi. 



