139 



ADDENDA. 



The recent arrival of the E.M.S. " China," bringing for our Museum 

 two Parts of Volume VIII of the Transactions of the Zoological Society 

 of London, enables me to give, as Addenda, more comprehensive 

 and interesting accounts of the economy of the cetaceans Globio- 

 cephalus melas and Grampus griseus than the ones contained in naees 

 99 and 104 respectively. ^ 



I therefore extract the following information respecting these 

 animals from the able writings of the eminent comparative anatomists, 

 Mr. W. H. Flower, P.E.S., and Dr. James Murie, E.L.S. ; although, 

 m doing so, I regret being compelled to greatly condense the matter, 

 and to alter the disposition of the text, in order to suit the nature of 

 this treatise and the limited space to which I am restricted. 



GrLOBlOCEPHALTTS MELAS, Traill. 



For Synonyms, see page 99, to which add — 



Olobiocephalus melas, Murie. Trans. Zool. Soc, 1873, vol. 8, part 4. 



Xeetn 9:5 to 12-12- 



" The numbers of teeth are most irregular, being so loosely implanted 

 in their sockets that in early life, adolescence, and old age, they not 

 unfrequently drop out." — Murie. 



" Teeth in both jaws 9 to 12 on each side on the anterior half of the 

 jaws, sometimes deciduous." — Flower. 



" Colour deep black, partial whitish streak on the abdomen, narrowed 

 posteriorly : some writers describe the colour as shining lustrous black, 

 like oiled silk. "When the surface of the skin is moist, it resombles the 

 outer polish of fresh india-rubber ; when dry, it becomes like lamp- 

 black, or of a sooty tint. 



" The snout is very globose and prominent ; the protuberant swej^iag 

 projects nearly as far as the upper lip ; the mandible, vyith its dense 

 labial covering, is shorter than the upper lips ; the dorsal fin is large, 

 falcate, and laterally greatly compressed, and situated in front of the 

 middle of the body ; but the precise position of the cetacean dorsal fin 

 would seem to be no sure specific test, for between foetus and mother 

 there is no unanimity ; in other words, its position depends, pari passu, 

 on the age of the animal ; pectoral fins are low set, peculiarly narrow, 

 tapering, and scythe-shaped. 



