jl.s 



BEM 



Dclphinus Leucas. D. rottro COMCO obtuto, Jeortum ineimatn, 

 pinna dor tali nulla. Lot. Sytt. Xat. Gmel. f. 13*. /'a//, rf. 

 J. p. 84. /. 4. 



White Dolphin, without dorsal fin. 



Delpbinus pinna in dorso nulla. Brut. Rcgn. Anim. p. 374. . 5. 



Beluga. 6>//. Cam/tdt. p. 106. 



Tins is a species which appears to have been 

 not very distinctly known till within a few years 

 past. It is a native of the northern seas, and, 

 like the Porpessc, sometimes enters into ri\ 

 It lias been well described both by J'abricius and 

 Pallas. It is of a more elegant appearance than the 

 rest of this tribe, and when full grown is entirely 

 milk-white, in some specimens tinned very slightly 

 with rose-colour, and in others with bin* 

 It measures from twelve to eighteen feet in length, 

 and sometimes even more, and preys upon all 

 kinds of middle si/ed fish ; as herrings, eod, flat- 

 tish, &c. &c. It is a gregarious species, and i.s 

 often observed swimming in la; >:ils, the 



young accompanying tluir parents. ;m,l tinuhole 

 funning a beautiful .spectacle, from the unusual 

 colour. They are also sometimes observed to fol- 

 low boats for a considerable time together. The 

 head of this species is rather small than large; and 

 is joined to the body by a kind of almost imper- 

 ceptible neck or contracted part : the spirai 

 situated on the top of the head, and is internally 

 double: the eyes are very small, blueish, and the 

 opening of the mouth by no means wide: the 



