132 STRUCTURAL AND SYSTEMATIC ZOOLOGY 



FIG. 94. Cowry (Cyprcea capensis) ; two 

 thirds natural size. South Africa. 



FIG. 95. Haliotis, or " Pearly Ear Shell. 

 Pacific coasts. 



FIG. 96. Spindle Shell 

 (Fusus colus); one 

 half natural size. 

 Ceylon. 



FIG. 97. Cassis rufa, or 

 " Helmet Shell; " one fourth 

 natural size. Indian Ocean. 



FIG. 98. Auger Shell 

 ( Terebra maculata) ; 

 one half natural size. 

 China seas. 



FlG. 99. Cone Shell (Conns 

 marmoreus} ; two thirds 

 natural size. China seas. 



FIG. 100. Chiton squa- 

 mosus; one half natural 

 size. West Indies. 



FIG. 101. Volute (Valuta 

 mnsica) ; one half natu- 

 ral size. West Indies. 



