276 



COMPARATIVE ZOOLOGY. 



Fig. 234 Cowiy {Cyprcea capensia) ; two 



thirds natural size. Soutli Africa. 



Fia. iSS.—Baliotis, or " Pearly Ear- 

 ehell." Pacific coasts. 



Fig. 236. — Spindle- 

 shell {JPu3U8 colus) ; 

 one half natural 

 size. Ceylon. 



Fig. 237. — Casti's rufa, or 

 "Helmet-shell;" one fourth 

 natural size. Indian Ocean. 



Fig. 23S.— Auger-shell 

 {Terebra tnaculata) : 

 one half natural 

 size.. China seas. 



Fio 239.— Coue-shell (Oohim 

 mat'Tnoreus) ; two thirds 

 natural size. China seas. 



Fig. 240. — Chiton aqua- 

 riwmia; one half natu- 

 ral size. West ladies. 



Fig. 241.— Volute (Foiiito. 

 musica) ; one half nat- 

 ural size. West Indies. 



