Report U. S. F. C. 1 897 iTo face page 3^0 ) 



Plate XV. 



Fig. 1. Drill. Urosalpinx cinerea. 

 Fig. 2. Mussel, Mytilus edulis. 



Fig. 3. Sabellaria vulgar is. 



Fir. 4. Periwinkle, Fidgur carica. 



