GENERAL CATALOGUE. 



581 



#. flavescens, Lowe 



y. neritoides, Lowe 

 Monizianum, Lowe 

 hespericum, M. et D. 

 Lyonnetianum, Lowe 

 trochoideum, Lowe 

 costaturn, Shuttl. 



TRUNCATELLIDJE. 



Truncatella, Eisso. 

 truncatula, Drap. 



a. [normalis] . , 



/3. laevigata, Lowe . 

 Lowei, Shuttl. 



ASSIMINEID.E. 



Assiminea, Leach. 

 littorina, Delle Chiaje 



HELICINIDJE. 



Hydrocaena, Parr. 



gutta, Shuttl. 

 o. [normalis] . 

 j3. minor, Shuttl. 



GASTROPODA (PECTINIBRANCHIATA), 

 RISSOIDiE. 



Hydrobia, Hartm. 

 similis, Drap. 

 Pleneri, Frauenf. 

 canariensis, Mouss. 

 acuta, Drap. 



MELANIIDJE. 



Melania, Lam. 

 tuberculata, Miill. 

 a. [normalis] . 

 j8. Tamsi, Dunk. 



M 



c 



c 



V 

 V 



