32 Mr. J. G. JeiFreys's Notes on Swiss MoUusca. 



Planorbis subcarinatus, Charp. 



Planorhis Draparnaldi, mihi, in Linn. Trans. 



M. Charpentier states that the Swiss locality for this species 

 is Delemont, instead of the Lake of Constance; and the latter for 

 his P. intermedius. 



Planorbis imbricatus, Drap. 



Var. Planorbis cristatus of that author. 



In a marsh about a league from Lausanne, on the Geneva road. 



Planorbis complanatus, Drap. 



Neighbourhood of Lausanne ; LacduBrenet; Valley of the Rhone. 

 Not common. 



Planorbis corneus, Miill. 



Berne, from M. Schmidt (Charp.). 



Ancylus lacustris, Drap. 



Lac de Bret; Roche (Charp.). It is still rather plentiftil at 

 Chamblande, the first Swiss locality indicated by M. Charpentier. 



Cyclostoma maculatum, Drap. 

 Saleve, near Geneva. 



Var. Albida. 

 Mont Teudre. 



Acme fusca, Walker. Auricula lineata, Drap. 



Lugano ; Sion (Charp.) ; Belmont and elsewhere near Lausanne. 



A vai'iety, which is quite destitute of the longitudinally im- 

 pressed lines, also occurred to me. 



Valvata planorbis, Drap. 

 Lac du Morat (Charp.) ; — Les Pierrettes ; Lac du Brenet ; marsh 

 between Martigny and St. Maurice. 



Paludina abbreviata, Mich. 

 Prevon d'Avaux (Charp.). 



Paludina marginata, Mich. 



Carouge, near Geneva; Nyon (Charp.). 



I will not pretend to meddle with the numerous so-called 

 species of Anodontce and Uniones ; although I am satisfied that 

 they may be all reduced to one or, at the most, two species of 

 each genus. 



