276 
COMPARATIVE ZOOLOGY, 
ft 
D 
Fig. 230*. — Spindle- 
shell ( Fusus colus); 
one half natural 
size. Ceylon. 
Fig. 237. — Cassis rufa , or 
“Helmet-shell;” one fourth 
natural size. Indian Ocean. 
Fig. 23S.—Auger-shell 
(Terebra maculata ): 
one half natural 
size. China seas. 
Fio 239.—Cone-shell ( Conus 
marmoreus ); two thirds 
natural size. China seas. 
Fig. 240. —Chiton squa- 
r'losus ; one half natu¬ 
ral size. West Indies. 
Fig. 241. —Volute ( Voluta 
musica); one half nat¬ 
ural size. West Indies. 
