﻿AN ACCOUNT OF A NEW SPECIES OF DELPHINUS. 171 



cana^ (a;) Delphis, (b; ) Orca, (c;) and Leucas, 'fdj) 

 to which I now add a fifth, viz. 



DELPINUS GANGETICUS, 



The body of which is nearly of a lanceolate fliape, 

 and almoft round. The jaws, long and flender; with 

 fixty teeth in each. No dorfal fin. 



Soosoo is the name it is known by amongft the 

 Bengalefe about Calcutta. 



They are found in great numbers in the Ganges, 

 even fo far up as it is navigable, but feem to delight 

 moft in the flow moving labyrinth of rivers, and 

 creeks, which interfeft the delta of that river to the 

 South, S. E. and Eaft, of Calcutta, 



DESCRIPTION. 



The Body (including the head) is of an ovate-lan- 

 ceolate fliape ; by which term I mean rather 

 long and flender, thickefl about the fore part, 

 from thence tapering to the tail ; from the anus 

 forward, nearly round.* The flun is foft, 

 fmooth, and of a fliining pearl grey, or lead 

 colour, when dry ; with here and there lighter 

 coloured fpots, or clouds, particularly when 

 old; but when the animal is alive, and as 

 we then fee it wet when it rifes to breathe, it 

 appears much darker. The length of the in- 

 dividual, (a young, little more than half 

 grown male,) from which this defcription is 

 taken, fix and a half feet, and at the thickefl 

 part, which is nearly about, or rather behind, 

 the peroral fins, three in circumference: the 

 weight one hundred and twenty pounds. 



^i-2 Head 



(a J The Porpoife. fbj The Dolphin. fcj The Grampus. 



fdj The Beluga, or white tifh of the Ruiliatis. 

 * But behind that aperture, the vertical diameter exceeds the hori- 

 zontal confideiably. 



