4% CETACEOUS-£Isi eiieH 
to breathe, which they are fo frequently conftrained 
to do. 
Many of thefe circumftances induced tee to 
place this tribe among his Mammalia, or what other 
writers ftyle quadrupeds. 
To have preferved the chain of beings entire, he 
fhould in this cafe have made the genus of Phocz, or 
Seals, and that of the Trichecus or Manati, imme- 
diately precede the whale, thofe being the links that 
connect the Mammalia or quadrupeds with the fith ; 
for the Seal is, in refpect to its legs, the moft imper- 
fect of the former clafs; and in the Manati the hind 
feet coalefce, affuming the form of a broad horizon- 
tal tail. 
Notwithftanding the many parts and properties 
which cetaceous fifh have in common with land ani- 
mals, yet there ftill remain others, that in a natural 
arrangement of the animal kingdom, muft determine 
us after the example of the illuftrious Ray*, to place- 
them in the rank of fifh; and for the fame reafons, 
that firft of fyftematic writers affigns, 
That the form of their bodies agrees with that of 
fifh. | 
They are entirely naked, or covered only with a 
fmooth fkin. 
They live entirely in the water, and have all the 
actions of fith. 
* Who makes two divifions of fifh. 
1 Pulmone re/pirantes. 
2 Branchits re/pirantess 
Genus 
