MOLLUSKS 



143 



These capsules are produced in spring and summer, l)ut newly laid 

 ones are also abundant in Long Island Sound during Septemljer. 



Formerly tlie 

 Indians used 

 these shells for 

 the manufacture 

 of their white 

 wampum. 



From Cape 

 IlatterastoCuba 

 we find still an- 

 other whelk 



fFuhjiir ■perversa), which resembles the Ivnobbed Whelk, but it is 

 streaked longitudinally with dull, purple-brown, and its shell is 

 coiled in a left-handed spiral. 



The English Whelk, fBuccinum undalitin, Fvj. 7^/5/ is a com- 

 mon sea snail in shallow water north of Cape Cod. It ranges, how- 

 ever, from Cape Hatteras to the Arctic Ocean, and is also found on 



J^i^^. 102: English WJielk and its Ej^g Cocoons. 



Fig. rj.i: HORSE MUS.SEL, OR BEARDED MUS.SEL. From lite. A 



si-ale-liiiipet ( Patflla teshidinalis), and seven egg cocoons of tlie 



Koc.lt Snail (Purpma lapillus) are seen upon the right hand 



shell. Cape Ann, Massachusetts. 



the northern coasts of Europe. On the Maine coast it is found at 

 low tide level, but south of Cape Cod it lives in deep water, having 

 been taken from a depth of 3,900 feet. 



