KNOX ON THE OETACEA. 65 



Mysticetus horealis and australis) any distinct vertebrsB in the 

 cervical region as in other mammals. A fusion of all into one bone 

 or cartilage seems to take place even in the youngest foetus. In 

 the foetus examined by me of this species (a specimen removed from 

 the uterus of a true Mysticetus killed in the G-reenland seas), I do 

 not recollect the- precise appearance of the cervical vertebrae ; but 

 the skeleton is in existence, and shaU be referred to. To the 

 skeleton of the Eorqual now in the Museum at Antwerp, and which 

 seems to me of the same species as the one I dissected in Scotland 

 (and of which the skeleton, prepared with infinite care by my 

 brother and myself, was presented by me to the Town Council of 

 Edinburgh, and is now preserved in the Zoological Gardens of 

 the same city), he gives the following vertebrae : — 



Skeleton of the Eorqual at Antwerp — Cervical . . 7 



Dorsal . . 14-15 



Lumbar . . 15 



Caudal .. 25* 



Total 61 or 62 



In the skeleton of the Great Eorqual now in the Zoological 

 Gardens at Edinburgh, and originally dissected and prepared by 

 my brother and myself, these vertebrae are — 



Cervical 7 



Dorsal 15 



Lumbar and Caudal 43 



Total.... 65 



In that of the Lesser Eorqual I dissected in 1830, the skeleton of 

 which I think is still preserved in the Museum of the University 

 of Edinburgh, we found — 



VertebrcB. 



Cervical 7 



Dorsal 11 



Lumbar 13 



Caudal 17 



Total 48 



The specimen was that of a young animal, and of the same species, 



* It is stated that some of the last of these are of wood. The skeleton in 

 Edinburgh is perfect. 



5* 



