EXPLANATION OF PLATE XL. 



Fi,.. \.-~Echinus horrklus, A. Agassiz. Photograph of an 

 KK) J^f'rir" from south of Gabo Island, Victoria, 

 J 00-250 fathoms. Abactinal view. One and one- 

 fourth tmies natural size. 



Fig. 2.— Actinal view of same specimen as Fig. 1. 



