240 ZOOLOGY. 



etc. The head is alike on each side, but posteriorly the body 



FIG. 180. 



FIG. 182. 



FIG 181. 



FIG. 183. 



Fig. 180. A Whelk. Buccinum cretaceum. Labrador. 

 Fig. 181. A Whelk. Buccinum ciliatinn. After Morse. 

 Fig. 182. Strniiibiis pugilis. West Indies. From Tenney's Zoology. 

 Kig. 18:1 Pelican's Foot. Aporrhais occidentalis. Northern New England. 

 After Morse. 



