1 Turnip Shell, i.apa piipyracra. 



2 Ear Shell, Sigarcliis perspcctiviis. 



MOOX SHELLS AND OTHERS 



3 Velvet Shell, Vehilina la'Agata. 



4 Moon Shell, Xalica caiircna. 



5 Moon Shell, Natka heros. 



6 Same, showing internal structure. 



