338 HELIX. SNAIL. Class VI. 



54. vitrea. Lin. Tr. viii. 213. Mont. Test. Br. 321. t. 12. 



f.3. 



* He. with a somewhat cylindric shell of four 

 rounded volutions ; aperture suboval, contract- 

 ed towards the end; columella visible to the 

 extremity ; length one eighth of an inch. 



55. punc- Lin. Tr. viii. 214. Turbo punctura. Mont. Test. 



TURA - Br. 320. t. 12. /. 5. 



* He. with a conic shell, of six globose reticu- 

 lated volutions ; aperture suborbicular ; length 

 one eighth of an inch, breadth a thirtieth of an 

 inch. Inhabits the sea on the coast of Devon 

 and Cornwall. 



56. arena- Lin. Tr. viii. 214. ib. iii. 66. T. decussatus. Mont. Test. 

 RlA. t . i3. f m 33, 34.? Br. 322. t. 12. /. 4. 



* He. with a conic shell, of five rounded decus- 

 sated volutions ; minute. 



Found on the coast of Devonshire. 



