CHAPTER VIIIL—PrREDATOoRY Swarts. 
Buccinum undatum Linn. is a large whelk not often to 
be collected on our coast, although common northward. 
The shell has broad low waves 
upon the upper part. 
The banded whelk, Nassa tri- 
vittata Say, is not uncommon on 
sandy beaches. It is light colored 
with spiral brown bands. The 
surface is elaborately sculptured, 
being cut into beads arranged in 
close regular rows. It - 
is often found contain- 
ing the living animal. ¢ 
Nassa vibex Say is 
stouter than the WN. tri- 
vittata, with less distinet rr. 
Nassa trivit- 
sculpture. It is not tata. 
common in New Jersey. 
Buccinum undatum., Next to this clean 
looking species comes the Scavenger whelk, Nassa 
obsoleta Say. You will not find this black fellow 
living upon the clean fresh sands of the open shore ; 
but go back to the mud flats and you see him in his Nassa vibex. 
element. His element, as I have said, is mud; and if it is 
Ji ssa cheleta S£:34 p 
Ja Meee GhSoleta Say-}. 
