MOLLUSCA 



189 



/ 



J 



Fig. 31 

 Neptunea decemcostata Say 



Buccinum undatum Linne 



(Whelk) 



PLATE XX. Fig. 1 



This large gastropod (2 to 3 inches long) is 

 common on the coast of Newfoundland and along 

 northern New England. Farther south it is re- 

 stricted to deep water and off New Jersey is known 

 only from 32 fathoms or deeper. Occasionally shells 

 are found on the beach, some of which are probably 

 fossils which lived during a part of the Pleistocene 

 when the climate was cooler than the present — 

 probably during a glacial stage. 



The peculiar egg masses of this species are 

 common on northern beaches and are occasionally 



