450 delphinidj:. 



cetacea. belpuinibm. 



{odontoceti). 



Genus Grampus (Gray, 1846). 



Generic Character : — Head rounded, no beak ; flippers long and narrow, 

 placed low down ; dorsal-fin high. No teeth in upj^er jaw at any age, those of 

 lower jaw few, and confined to the front part of the mandible. 



RISSO'S GRAMPUS. 



Grampus griseus (G. Cuvier). 



Specific CJiaracter .•— Colour variable, from black above and white below to 

 a pale grey jiassing to black towards the tail, marked all over with stripes and 

 streaks irregularly disposed in every direction. Teeth ±. to A ; vertebroe 68 ; 

 ribs 1 2 pairs. 



Delphiiius griseus, Cuvier, Ann du Mus., XIX., 14 (1812). 



rissoanus, Desmarest, Mamm., 519 (1822). 



Grampm cui-ieri, J. E. Gray, Ann. Nat. Hist (ISiO). 



,, griseus, Flower, Trans. Zool. Soc, VIII. 1. 



This species was first described by Cuvier from a 

 drawing and the skeleton of a specimen taken at Brest. 

 The latter is still preserved at Paris in the Museum of 

 the Jardin des Plantes. Since that time other individuals 

 have occurred on the French coast. In 1822 another 

 species was established by Desmarest on a figure and 

 description forwarded to the Academy by M. Risso of 

 Nice, and received the name of Delphinus rissoanus. That 

 the two species were very closely allied was evident, and 



