186 MAMMALIA. 
D. gangeticus, Roxburg (The Dolphin of the Ganges), should 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. 
Puocana, Cuv. 
Marsouins or Porpoises* have no rostrum, but a short, and uniformly 
convex muzzle. 
D. phocena, L.; Lacep. XIII. f. 2. (The Common Marsouin 
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).{ 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 Whale. They attack 
it in troops and torment it until it opens its mouth, when they devour 
the tongue. 
D. aries, Risso; Ann. Mus. XIX. pl. 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,t 
D. globiceps, Cuv.§ Ann. Mus. XIX. pl. 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. 
{+ Grampus, a corruption of the French words grand poisson. Buts kopf, or rather 
Boots kopf, signifies that its head is made like a long-boat. Schwerd fisch, Sword-fish, 
from its dorsal fin. 
{ The Epaulard ventru of Bonnaterre, Lacep. XV. 3, copied from Hunter, Phil. 
Trans. presents a similar form; butHunter’s specimen was eighteen feet long, and 
ours never exceeds ten. 
The D. griseus, Ann. Mus., XIX. pl. i. f. I. is merely a bad drawing of this D. 
aries, Ib, f. 4. ° The true aries of the antients is the Grampus. 
§ Itis the head of the D. globiceps deprived of its teeth, which is engraved in 
Bonnaterre, Cetol. pl. vi. f. 2: andin Lacep. pl. ix. f. 2, under the name of Cachalot 
swinewal; and in Camper, Cet. pl. xxxii, xxxili, and xxiv, under that of the Toothless 
Narwhal, 
