316 



OLOHrOCErnALIDJE. 



able variety of appearance. The Leading "Whale is of a very dark 

 colour ; but a •whole herd is sometimes seen of a cream-colour, and 

 single specimens of a light tint are not unfrequent. These cannot be 

 the D. Beluga or White Whale, as the latter is without the dorsal 

 fin." — Couch, Corn. Fauna, 10. 



Fiff. G2. 



^. 



Upper surface of the skull of Glohlocephalus Srineral. B. M. 



