276 



COMPARATIVE ZOOLOGY. 



FIG. 234. Cowry (Cyprcea capewis) two 

 thirds natural size. South Africa. 



FIG. 235.ffalwti, or " Pearly Ear- 

 shell." Pacific coasts. 



Fio. 236. Spindle- 

 ehell (Fwiufi cohui) ; 

 one half natural 

 size. Ceylon. 



FIG. 237. Cassis rufa, or 

 "Helmet-shell;" oue fourth 

 natural size. Indian Oceau. 



Fio. 238. Anger-shell 

 {Terebra maculata) ; 

 one half natural 

 size. China seaa. 



Fio. 239. Cone-shell (Conu 

 marmoreiM) ; two thirds 

 natural size. China seas. 



FIG. 240. Chiton squa- 

 mnxus; one half natu- 

 ral size. West Indies. 



FIG. 241. Volute (Valuta 

 mutrica) ; one half uat- 

 nral size. West Indies. 



