70 the round headed cachalot. 
this opening, which nature, as we have already feen, has 
deftined for a different purpofe. 
This fpecies is far inferior in fize, to that above de- 
fcribed ; the largeft of that great number juft mentioned 
did not exceed twenty-four feet in length. Its head is 
round, and the fliape of the teeth the reverfe of thofe of 
the blunt headed kind. They are fmaller at the back, 
than at the top, where they are quite flat, marked with 
concentric lines. Their bottom is pierced with a fmall 
orifice, bearing no refemblance to the large cavity, de- 
fcribed in the former fpecies. The back fin is wanting; 
inftead of it is a rough knotty kind of fpace *. 
* Britith Zoology. 
