302 ZOOLOGY. 



integuments, and indeed may be considered as forming a 

 portion of them. No fat exists in the interior of the whale, 

 but the bones, especially those of the head, afford much oil. 



Fig. 279. Foetus of Greenland Whale.* 



The South Sea Fishery has for its object the capture of the 

 cachalot or sperm whale, and is carried on mostly in the 

 Pacific and Japan Seas. The spermaceti is the object sought 

 for. 



The dolphins and the marsouins (porpoises) have the head 

 much smaller than the true whales, and they have teeth in 

 both jaws ; they are extremely carnivorous. Lastly, there 

 are cetacea which are herbivorous ; these are the lamantins 

 and dugong.f 



[Tabular view of the number of vertebrae in the class 

 Cetacea. 



Balsena Mysticetus Australis .... 59, Cuvier. 



Balsena Mysticetus Borealis (adult) . . Unknown. 



Balsena Mysticetus Borealis (foetus) . . 48, Knox. 



Rorqual Giganteus 65, Knox. 



^rqualofFabricius V j f^ l^nter. 



Rorqual of the Cape 52, Cuvier. 



Rorqual of Rudolphi 54, Rudolphi. 



Cachalot 60, Cuvier. 



* Drawing of the foetus of the Mysticetus Borealis, abdominal surface, 

 from a specimen brought from the North Seas at my request by Mr. B. 

 Auld. It was removed from the uterus after the death of the parent. E. K. 



f The Lamantins and Dugong are certainly not Cetaceans, as I proved 

 long ago. See Tr. R. Soc. Edin. 1830. R. K. 



