MOLLUSCA 
277 
Fig. 242. —Top-shell ( Turbo marmo- 
ratUH ); one fourth natural size. 
China seas. 
Fig. 243— Strombus gigas, or “Winged- 
shellone fifth natural size. West 
Indies. 
Fig. 244. 
— Paludina, a Fresh-water 
Snail. 
Fig. 245.—Key-hole Limpet (Fiasurella 
listeri). West Indies. 
Fig. 246 .—Ear-shell (II. tuberculata), and Dog-whelk (Xassa reticulata). England. 
