MAMMALS. 75 



Sub-order ODONTOCETI. 



Family PHYSETERID^. 

 Sub-family PHYSETEEIN^. 



Physeter macrocephalus, L. Sperm Whale. 



While Low says this species is often driven ashore, and instances 

 one taken in Hoy Sound, later writers all concur as to its rarity, 

 and this seems most likely, seeing that this species is more 

 southerly in its range. 



Hyperoodon rostratum (Chemnitz). Beaked Whale. 



There can be no doubt whatever that, although we have received 

 no actual record of the capture of this species from any of our 

 correspondents, the Beaked Whale is a common animal at times 

 round the coast. It is unfortunate that the name " Bottlenose " 

 is applied in so comprehensive a manner, as it seems to include 

 every cetacean smaller than a Rorqual. 



Family DELPHINID-2E. 

 Sub-family BELUGIN^. 

 Delphinapterus leucas (Pall.). White Whale. 



A White Whale was stranded at Auskerry in October 1845, after 

 a gale of easterly wind (Bell. Brit. Quad., 2d ed.). We have 

 no further record to add to this. 



Sub-family DELPHININJ2. 

 Orca gladiator (Lac6p.). Killer. Grampus. 



Low mentions this species as found in great numbers on all the 

 coasts, and at certain times at the mouth of Hoy Sound. 



