Mr. Anpre’s Defeription of, &e. 275 
Angel-fifh. ‘The former have been but imperfectly deferibed, 
and never reprefented diftiné from the fith, without which it 
is impoffible to have any exact idea of their difpofition, num- 
ber, or form, while the true fhape and compofition of the 
latter, from their minutenefs, have been entirely overlooked. 
I fhall then attempt to prove, that a continual renovation of the 
teeth takes place in cartilaginous fithes. 
Tut Sea-wotr is a fierce and ravenous fith, as its name 
imports, found in the northern parts of the globe, where it | 
frequently grows to the length of four feet and upwards. 
The jaws of the Wolf-fith are made up of feveral bones, to 
each of which a greater or lefs number of teeth are affixed s 
but, before I enter upon the defcription of them, I fhall take 
notice of the palate (marked A, tab. XI.), that being a kind 
of bafis or fupport to the other bones, to which they are all 
more or lefs connected. The palate is a thick and firm bone 
united above to the bones of the cranium and nofe, and ending 
below in a flat oyal furface, on which are incrufted about 
twelve or thirteen ftrong, blunt, and rather flat teeth of the 
molar or grinder kind. ‘The external edges of the teeth are © 
the moft prominent; by which means a hollow is formed in the 
middle of the Palate. : 
The upper jaw is compofed of three bones, two of which 
(BB) are placed laterally, forming the fides of the upper jaw, 
and the third (C) anteriorly, making the fore-part of the jaw. 
The third bone may be divided through its middle into two 
portions ; but fince it has the appearance of one bone only, 
the connection being very firm, I fhall defcribe it agreeably to 
that appearance, to prevent needlefs divifions. 3 
The fide bgnes of the upper jaw have nearly the fhape of an 
italic f At their pofterior ends may be obferved a {mooth 
O02 | a:ti- 
