160 POPULAR CONCHOLOGY. 



in the Islands of Bourbon and Martinique in 

 woods and gardens. — 8 recent species. 



34. Limax. — Shell internal and rudimental. 

 Animal, long; head tolerably distinct, having 



two pair of tentacula ; foot large and oblong. 

 — 19 recent species. 



These animals are common everywhere, but 

 particularly in the neighbourhood of ditches 

 and gardens, where they often cause great 

 damage. They are usually known by the name 

 of slug in England. 



35. Parmacella. — Shell merely rudimen- 

 tal, like the Aplysia, and defend- 

 ing the organs of respiration. 

 Animal, oblong, having four ten- 

 tacula, two of which have eyes, 

 and all are retractile ; foot large. — 1 species. 



This animal has been found in Mesopotamia. 



36. Testacella. — Shell very small, slightly 

 ear-shaped, and spiral at the apex ; mouth 

 large, oval, having the left lip rolled inwards, 



