240 ZOOLOGY. 
etc. The head is alike on each side, but posteriorly the body 
Fie. 180. Fie 18i. 
Fic. 182. Fig. 183, 
Fig. 180.—A Whelk. Buccinum cretacewm. Labrador. 
Fig. 181—A Whelk. Buccinwm ciliatum.—After Morse. 
Fig. 182.—Strombus pe West Indies.—From Tenney’s Zoology. 
gee Pp etal eae ‘oot. Aporrhais occidentalis. Northern New England.—- 
ter Morse. ‘ 
