436 CLASS MAMMALIA. 



The Porpusses (Phoc^ena, Cuv.) 



Have no beak, but a muzzle short and uniformly 

 convex. 



The Common Porpus, (Delph Phoccena, L.) Lacep. 

 XIII. f. ii. 



Compressed trenchant teeth, of a rounded 

 figure, from two to five- and- twenty in each 

 jaw, on each side. Blackish above, white un- 

 derneath. It is the smallest of the Cetacea, 

 seldom passing four or five feet in length: very 

 common in all our seas, where it is found in 

 large troops. 



The Grampus {Delph. Orca et Delph Gladiator.) Lacep. XV. 

 i., and not so good, v. in. 



Thick conical teeth, a little crooked, eleven in 

 all, the posterior ones flattened transversely. 

 The body black above, white below ; a white 

 spot on the eye in the form of a crescent ; the 

 dorsal fin elevated and pointed. 



This is the largest of the Dolphins, being 

 frequently from twenty to twenty-five feet in 

 length, and a most cruel enemy to the Whale. 

 The Grampusses attack the latter in troops, 

 harass it until it opens its mouth, and then 

 they devour the tongue. 



The Delphi napter a (Lacep.) 



Differ only from the Porpusses in havingno dorsal fin. 



