186 



in never having their lip reflected or thickened; and 

 from the G. Lyranaea, the columella being smooth, at- 

 tenuated, and sharp ; and the reflected right margin oc- 

 casioning no appearance of an angle, plait, or fold. Shell 

 ovate, oblong ; aperture oblong, very ample, and entire ; 

 right lip not reflected, and united to the columella at the 

 lower part: no operculum. Lamarck mentions only 

 three species; deFerrusac, nine; and Sowerby has dis- 

 covered another not noticed by either, which he calls 

 S. ovata. 



Succinea cucullata Succinea amphibia 



Succinea oblonga. 



AURICULA. 



VOLUTA AURIS-MIDJE. LillH. 



Mawes Linruzus, pi. 29, /• 4. 

 Mart. 2, *. 23,/ 436, 438. 

 Shells of this genus were considered Volutes by Lin- 

 naeus, from which Bruguiere removed all those not 

 possessing a notch at the base, to his genus Bulimus, uot 

 considering that the plaited or callous columella dis- 

 tinctly indicated the dwel ling of a differently organiz- 

 ed animal. Lamank has therefore constituted Hie pre 



