33S HELIX. SNAIL. Class VI. 



54. VITREA. Lin. Tr. viii. 213- Monf. Test. Br. 321. t. 12. 



f.2. 



* 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. To-, vm. 21 A. Turbo puiictura. 3/ow^. TV^^ 



TURA. 5^ 3^,0 M2. /. 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. ih. iii. Q6. T. decussatus. Mont. Test. 

 "^^- t. 13. /. 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. 



