]»5 



Achatina acuta 



Achatiua ustulata 



bicarinata 



vexillum 



Mauritiana 



Virginea 



castanea 



Priamus. 



Last Whorl compressed, and attenuated to the base. 

 Achatina glans Achatina fulminea 



Peruviana columnaria 



albo-lineata folliculus 



fusco-lineata acicula. 



SUCC1NEA. 



helix putris. — Linn. 



Sowerbys Genera^ No. 9, plate 4. 



This genus was at first called Amphibulimus by La- 

 marck, not knowing that Draparnaud had called it 

 Succinea, which name he has now therefore adopted. 

 The genus appears to be intermediate between those of 

 Bulimus and Lymnsea: the animal is almost amphibi- 

 ous, inhabiting the neighbourhood of water, in which 

 it fearlessly ventures, but habitually lives in the open 

 air, and may therefore more properly be considered a 

 terrestrial shell. Thcv are distinct from the G. Bulimus, 



