196 



M. arctica. Foiiiid on the shores of Salem harl)or. 



Littoriiia. 



L, palliata. ) On seaweed hehveeu half tide and low 



L. rudis. ) water. 



L. tenebrosa. Fine specimens in City-Mill pond. 



Lacuna. 

 L. vincta. On the beaches and City-Mill pond. 



Cingula. 

 C. minuta. Found in City-Mill pond and on the beaches. 



Turritella. 

 T. erosa. Found in fislies'(stomachs, and on the beaches. 

 T. interrupta. At Point Beach, Swampscott. 



Pyramis. 

 P. sti'iatula. In fishes' stomachs at Swampscott. 



Odostomia. 



0. fusca. ^ 



O. exigua. > Found in the City-Mill pond. 



0. producta. ) 



Pleurotoma. 

 P. decussata. From stomachs of fishes/ at Swampscott. 



Cancellaria. 

 ■ C. Couthouyi. From stomachs of fishes, and on the 

 beaches. 



Fusus. 

 F. Islandicus. Found on the beaches at Lynn and Salem. 

 F. pygmasus. Plenty in fishes and on the beaches. 

 F. decemcostatus. At Phillips Beach, and at Lynn. 

 F. Bamffius. ^ 



F. turricula. ! At Swampscott, from fish and on the 



F. rufus. [the beaches. 



F. harpularius. j 



Rostellaria. 

 K. occidentalis. The young of this species, at Swamp- 

 scott. 



Trichotropus. 

 T. borealis. At Swampscott from fishes, and on the 

 beaches. 



