48 



fins are very large and of a fine transparent blue colour ; the 

 ventral fins long, and almost rounded at the end ; the dorsal 

 and anal fins are falcate, beginning and ending nearly on the 

 same plane ; the tail consists of two unequally sized lobes, of 

 M'hich the lower lobe is the larger. The fin ray formula, ac- 

 cording to Bloch, is 



B. 10: D. 11: P. 18: V. 6: A. 12: C. 22. 



According to M. Risso, the female is heavy with roe in 

 the spring, and is remarkable for the variations that occur in 

 the number of the rays of her fins. 



w r M 



END OF THE SUPPLEMENT TO THE FIRST VOLUME. 



London : Printed by Samuel Bentley, Bangor House, Shoe Lane. 



