104 ANALYTICAL INDEX. 



CHAPTER IL continued. 



Of the Liraax species, . . . PAGE 34 



The shell of these animals in general conical, . 35 



Vain to account for diversities, . . . ib. 



PILEOPSIS HUNOABICA, ... ib. 



Shell nearly circular, &C., . . . . ib. 



Tentacula originate from the head, . . ib. 



VELUTINA L^EVIGATA, ... ib. 



Doubtful whether in a state of transition, ib. 



Shell and animal described, ... 36 



CYPR./EA EDROPEA, .... ib. 



Shell common, but animal not understood, . . ib. 



Living animal rare, .... ib. 



Shell described, . . . . . ib. 



Description of animal, ... . . ib. 



Food uncertain, . . . . .37 



Plate VII. described, . , .'. . 33-36 



NATICA ALDEBI, ..... ib. 



Size and colour of the shell, . . . . ib. 



Animal, of the. nature of a Limax, described, . ib. 

 Food, Ac., ...... 38 



Plate V. described, . . . . ib. 



THOCHUS, ib. 



Shell more conical than that of the Turbo, . . ib. 



1. TROCHUS CINERARIU8, .... ib. 



One of the more ornamental of the Scotish shells, . ib. 



Shell and animal described, ... ib. 



Feeds on the Coralline, officinalis, . . .39 



-'. Taocnus ZIZYPHINUS, .... ib. 



Shell and animal described, . . . . ib. 



Feeds on Zoophytes, .... ib. 

 Plate VIII. described, . . . 39,40,41 



TURBO, . . . ... .40 



Comprehends numerous species, . . . ib. 



TURBO QUADRIFA8CIATU8, . . . . ib. 



Shell and animal described, ... ib. 



