NON-PULMONARY GASTEEOPODS. 435 
The animal which inhabits this shell presents a distinct head, pro- 
dded with a trunk or snout, and with two tentacles or horns, each 
tearing a large and vividly-coloured eye. The foot is compressed and 
Fig. 290. Shell of Strombus gigas. Fig, 291. Strombus gallus (Linn ), 
divided into two portions, the posterior one, which is the longest, bear- 
a horny operculum— a true claw. In the eagle- winged Strombus, 
^presented in Figs. 290 and 291, these several peculiarities are 
(Line anis). cellatus (Lamarck). 
' Ve ^ developed. This shell is large, turbinate, distended in the 
^ddle, with an acutely-pointed spiral studded with conical tubercles, 
2 f 2 
