384 



ADDITIONS AND CORRECTIONS. 



circular form of that in the genus Balcenoptera, and not the trans- 

 versely oblong form of the neural canal in Physalus. I am therefore 

 inclined to refer these bones to the genus Balanioptera until we are 

 able to know more of the skeleton and the external form of the 

 animal. 



Fiff. 90. 



Fig. 91. 



Fig. 90. The back view of the sixth or seventh cervical vertebra. 

 91. Side view of the same vertebra. 



I am, however, inclined to believe that when the animal and its 

 skeleton are better known it will be found to have some particular 

 characters (as the form of the bodies of the vertebroB), since the 

 lateral processes show some alliance to the genus Physalus. It is to 

 be regretted that the number of the vertebras, the form of the lumbar 

 vertebrte, and the form of the first ribs were not observed ; and they 

 are all required to determine with certainty to what genus the animal 



