THE 
UNDER-JAWED MYSTICETE. 
GENERIC CHARACTER. 
Horny 'Lamina; in the upper jaw in place of 
teeth. 
Spiracle with a double external orifice on the 
top of the head. 
SPECIFIC CHARACTER, ^c. 
Whale with double spiracle on the front, and 
lower jaw wider than the upper. 
Round-lipped Whale ? 
Penn, Brit. Zool. 3 . p. 32. 
La Baleinoptere Rorqual. 
CepedeHist. Get. p. 126 . pi. 5 . f. 1 , 
” " ' --—^ 
The present species of whale, which is one of the 
largest of the genus, is an inhabitant of the Atlantic 
and northern seas, where it is said to feed principally 
on herrings. Its colour is blackish above, and whitish 
beneath. 
