SECTION VIII. 



'5 



'J 



This family has very few fpecies : and 

 the foflil ones afford not any kinds yet 

 undifcovered recent. PI. II. fig. 9, the 

 large green furrowed Dentale of the Eaft- 

 Indies. PI. II. fig. 10, the fmooth yel- 

 lowiih Dentale of the Englifh fea. 



SECTION 



