671 



species is chiefly distinguished by the bodj-, especialh^ of the male, being 

 more slender, and by the less elongated branchial appendages. 



Occurrence. — I have taken this form several times in great abun- 

 dance from the common Humpback-Whale (Megaptera boops), killed off' the 

 Finmark coast, at Vadse and Sorvig. It was found in different places 

 of the skin of the whale: on the head, within the belly-furrows, in the 

 sexual region, and on the breast-fins, generally associated with Coroniiln 

 (liadema. 



Distrihution. — Greenland (Fabricius), Iceland (Llitken). 



