236 African Zoology. 



more slender tlian the opposite end ; the skin is smootli and has 

 some scattered Imirs. Seven or eight feet long. 



Inhabits the Indian Seas and the Mozambique Channel. 



Dugong, Buff. Indian Walrus, Pcnn. Trichecns Du^ong, " 

 Gmel. Rosiuarus ludicus, Camper, RaSle.s, Home, F. Cuvier. 



Fam. DELPHINIDiE. 



Teeth pointed or obtnsc, all of one kind, upon the borders of 

 the jaws; two anal mammae ; spiracles on the top of the head, 

 •with their external opening simple ; tail flattened horizontally 

 and bifurcated. Food, animal. 



Sub-genus DELrHiNORHTNCUs, Bla'inville. — Snout prolonged, rcUh 

 n long and slender heal; ; jaws almost linear, nith numerous teeth on 

 their margins. 



De?phir>orhyncJivs Cnpenais. Body long and rather slender; 

 liead somewhat conical and terminated before, by a long distinct 

 .somewhat flattened snout ; hinder part of body near tail strong- 

 ly carinated both above and below. Colour above a deep shin- 

 jno- black, sides a dull dusky white, each obliquely cut by a 

 jraiTow well-defined blackish streak, which commences imme- 

 diately behind the eye and terminates or rather loses itself on 

 the belly about two feet in front of the tail ; under-parts white. 

 Between the angle of the month and base of pectoral fin a dusky 

 ' rtrcak, and between that and the black band already mentioned 

 the colour is a dusky white. Teeth slender, conical, and 

 slightly curved inwards, about sixty-six in the npperjaw and 

 abont ninety in the lower ; eyes situated a little higher than the 

 angles of the mouth and about an inch and a half behind them ; 

 opening of the spiracles directly over the eyes ; dorsal fin slight- 

 ly fiilcated, and a little bent backward ; pectoral fins narrow 

 and falcated ; caudal fin somewhat semilunar wjth a deep notch 

 behind at the termination of the back-hone. Length from tip 

 of nose to extremity of tail six feet; length from tip of snout to 

 anterior edge of dorsal fin two feet ten inches; hei^'ht of dorsal 

 fin six inches and a half ; width of hinder edge of caudal fiu 

 fifteen inches and a half. 



Inhabits the seas about the Cape of Good Hope, — generally 

 solitary. 



Delphjnns Capensis, Gray. Spicilegia Zoologica, part i. p. 2. 



Sub-genus Delphtnup, Blainville. — Head globular or stibr 

 conical, terninated by a Leak distinct from the profile of the 

 face, broad at its base, smaller and rounded at its extremity. 



