18G MAMMALIA. 



D. gan(jel:icus, Roxburg (The Dolpliin of die Ganges), shoulil be 

 distinguished from this first group. Its spiracle is longitudinal, and 

 the jaws slender and inflated at the end. It ascends the Ganges to a 

 great distance, and is probably the Platanista of Pliny. 



Phoc;ena, Cvv, 



Marsouins or Porpoises* have no rostrum, but a short, and uniformly 

 convex muzzle. 



D. phoccena, L. ; Lacep. XIII. f. 2. (The Common Marsouiu 

 or Porpoise, of the English). The teeth compressed, trenchant and 

 rounded, from twenty-two to twenty-five on each side in each jaw; 

 blackish above, white beneath. It is the smallest of the Cetacea, 

 seldom exceeding four or five in length ; very common in all our 

 seas, where it is found in large troops. 



D. capensis, Dussumrem. (The Cape Porpoise). Similar to the 

 preceding, but has twenty-eight teeth throughout, cylindrical, slightly 

 pointed, and not compressed like those of the common species. From 

 the Cape seas. 



D. orca and D. gladiator ; Buts-kopf and Schwerd-fisch of the 

 Dutch and Germans; Lacep. XV. 1, and not so well, V. 3. (The 

 Grampus). f Teeth, thick, conical, and slightly hooked, eleven every 

 where; the posterior ones flattened transversely; the body black 

 above, white underneath ; a white spot on the eye in the form of a 

 crescent; the dorsal fin elevated and pointed. It is the largest of 

 Dolphins, being frequently found from twenty to twenty-five feet in 

 length, and is the most relentless enemy of the AVhale. They attack 

 it in troops and torment it until it opens its mouth, when they devour 

 the tongue. 



Z). aries, Risso ; Ann. Mus. XIX. pi. i. fig. 4. A smaller spe- 

 cies sometimes seen upon the coast of France, which at an early 

 period loses the upper teeth and preserves only a few of the lower 

 ones. Its dorsal fin is lower and further back than that of the 

 Grampus,!; 



D. glohiceps, Cuv.§ Ann. Mus. XIX. pi. i. fig. 2 and 3; D. de- 

 ductor, Scoresby. (The Round-headed Grampus). Has the top of 

 the head so arched as to be globular ; long, pointed, pectoral fins ; 

 it is more than twenty feet in length ; black, with a white stripe from 

 the throat to the anus. It lives in troops of several hundreds, led 



* Porpoise, from porcus piscis, hog-fish. 



f Grampus, a corruption of the French words grand poisson. Bu/s kopf, or rather 

 Boots kopf, signifies that its head is made like a long-boat Schwerdfisch, Sword-fish, 

 from its dorsal fin. 



X The Epaulard venlru of Bonnaterre, Lacep. XV. 3, copied from Hunter, Phil. 

 Trans, presents a similar form; but Hunter's specimen was eighteen feet long, and 

 ours never exceeds ten. 



The D. griseus, Ann. Mus., XIX. pi. i. f. I. is merely a bad drawing of this D. 

 aries, lb. f. 4. The true anes of the antients is the Grampus. 



§ It is the head of the D. globiceps deprived of its teeth, which is engraved in 

 Bortnaterre, Cetol. pi. vi. f. 2: and in Lacep. pi. ix. f. 2, under the name of Cachalot 

 swinewal; and in Camper, Cet. pi. xxxii, xxxiii, and xxiv, under that of the Toothless 

 Narwhal, 



