CORRIGENDA. 



Page 165. For Melania laevigata, read Melania laevis; laevigata 

 being preoccupied by Lamarck, 



Do, 167. For Melania rufa, read Melania rufescens. The spe- 

 cific name rufa, being preoccupied by Dr. Philippi, 

 for a Sicilian species. 



Do. 177. For Melania corrugata, read Melania rugosa; corrugata 

 being preoccupied by Lamarck. 



Do. 186. For Melania striata, read Melania striatula; striataheing 

 preoccupied by Mr. Sowerby, for a fossil species. 



