DELPHINUS TURSIO. DELPHINUS ROSTRATUS. 147 



Delphinus Tursio. 



Delphinus Tursio, Desm. Mamm. Sp. 761 ; Bell, Brit. Quad. ; 



F. Cuvier. 

 Bottled-nosed Dolphin. 



Description. — Teeth from twenty to twenty-four on each 

 side in each jaw, conical, sharp, and slightly bent backwards ; 

 dorsal and pectoral fins of equal length, and shorter in pro- 

 portion than in most species ; the blow-hole is single, of a 

 half-oval form, the convex part being turned forward ; the 

 colour is black above, whitish beneath ; the separation of 

 the two colours is not abrupt. 



Usual length, about 11 feet, sometimes much less. 



This rare Dolphin inhabits the North Sea ; has been 

 taken a very few times on the coast of England and Ireland ; 

 and in the Mediterranean, on the French coast, occa- 

 sionally (Crespon). 



Subgenus 2. DELPHQfORHrN-CHxrs. 



Delphinus rostratus. 



Delphinus rostratus, F. Cuvier, Cetacea. 

 DeVphinorhynchus Bredanensis, Hamilton, Nat. Lib. vol. vii. 

 Steno ? rostratus, Gray, Cat. Brit. Mus. Cetacea, 1850. 

 The Beaked Dolphin. 



Description. — Teeth from twenty-one to twenty-three on 

 each side in each jaw, rather large ; dorsal fin elevated, 

 placed near the middle of the body; pectorals scythe- 

 shaped ; the tail crescent-shaped, and curved in the middle ; 

 the profile of the head insensibly loses itself in that of the 

 snout; all the upper parts of the body sooty black, the 

 lower rosy white : the junction of the two colours is quite 

 irregular. 



Length of a specimen stranded at Brest, about 8 feet. 



i2 



