Teeth t Beak scarcely produced; nose of skull rather depressed, scarcely longer than the brain cavity. Teeth 24-732 24-30.
I. Delphinus Ilearisidii, the Ilastated Dolphin, inhabits tho South Sea—Cape of Good Hope.
2. D. obscurus, Dusky Dolphin, inhabits the Southern Ocean— Cape.
3. 1). compressicauda, the Compreased-Tailed Dolphin, inhabits 4° S. lat., 24' W. long.
ft Beak short ; nom of skull rather thick, conical, convex above, half as long as the head.
* Beak of skull rather thick and rather swollen on the sides.
4. D. Artie, Bottlenose Dolphin, inhabits the North Sea.
5. D. Abosalam. inhabits the Red Sea.
6. D. Eutropia inhabits the Pacific Ocean—Chili.
7. D. Eurynonte inhabits the North Sea.
** Beak of skull rather thick, conical, evenly tapering.
8. D. the Metia. Locality unknown.
9. D. Cyntodoce, the Cymodoee. Locality not known. *** Beak of skull slender, cylindrical.
10. D. Doris. The Doris. Inhabits — ? 11. D. frematus, the Bridled Dolphin, inhabits Cape de Verds. B. Head longly beaked. Nose of skull slender, light, rather de pressed, especially in front, much longer than the head. Teeth 40-60 * Skull flattened behind ; triangle to the teeth line. Palate flat, not grooved on the side.
12. D. Clymene. Locality unknown.
13. D. Styx, the Styx, inhabits West Africa.
14. D. Euphrosyne, the Euphrosyne, inhabits the North Sea.
15. D. Alope, the Alope. Locality unknown.
** Skull roundish ; triangle just to the teeth line. Palate with a deep groove on each side, and a high central ridge behind.
Beak moderate, 14 the length of the brain cavity. Teeth 45 or 50 — —.
45 50 16. D. Delphis, the Dolphin, inhabits the North Sea, Atlantic Ocean. Has iseen taken on the English coast.
17. D. Janiru, the Janke, inhabits Newfoundland.
18. D. Norco Zealandia., the New Zealand Dolphin, inhabits New Zealand and Cape Gable.
19. D. Forsteri,, Forster's Dolphin, inhabits the Pacific Ocean between New Caledonia and Norfolk Island.
20. 1). Sao inhabits Madagascar.
Beak of skull twice as long as the brain cavity. Teeth 55-60 55-60 21. D. lonffirostrit, the Cape Dolphin, inhabits the Southern Ocean. —Cape of Good Hope.
•** Skull round ; triangle not reaching to the teeth line. Palate convex, with a very concave line on the hinder part of each side.
Beak twice as long as the head. Teeth 50 22. D. micropa, the Small-Headed Dolphin, inhabits the coasts of Brazil.
Steno Malayanus. It is the Delphin h Ventre Roux of the Paris Museum, Delphinus plumbeus of Cuvier. It is a native of the Indian Ocean.
S. front atus. It inhabits the Indian Ocean and the Pacific.
S. compresses. Described by Gray in the Zoology of the Erebus and Terror.
S. attenuatus. Found at Cape Horn.
S. fuscus. Described by Gray in the Zoology of the Erebus and Terror. A fcctus was brought from Cuba by Mr. M‘Leay.
S. rostratus. It inhabits the North Sea, and has been taken at Holland and at Brest.
Pantoporia Blainrillii. It has been found off Monte Video. A skull is in the museum at Paris. It is described by Freminville as Delphinus Blainrillii.
Imia Geoffroyii. A native of Upper Peru or Bolivia—River Moxos. "The specimen," says Gray, "in the Paris Museum, which Desmarest described as Delphinus Geffroyii, is evidently this species." Platanista Ganyetka. It is the Sou Sou of India, the Susu of Buffon, the Platanista of Pliny, Dauphine du Gange of Cuvier, Delphinus Showentit of Blainville.
The family MalcaTID.F. includes a number of animals, which, although usually referred to Cetacea, have relations which have induced some zoologists to propose that they should be placed amongst other orders of Mantmalia. They differ from the animals we have already considered in being entirely vegetable feeders, and are comprised in the division of Phytophagous Cetaceans of the two Cuviers.
It is not indeed surprising that they should so long have been con founded with the Cetaceans ; for their general appearance and hori zontal tail, joined to the difficulty of associating them either with the Seals or the Walruses, notwithatandingthei r aquatic habits, led naturally to their being placed in the same order with the true Zoophagous Whales. But with external form almost all resemblance ceases ; and when these Phytophagous Mammals are, as they ought to be, referred to a separate group, there will not be, so far as discovery has hitherto gone, any such animal as a Phytophagous Whale.