Mr. J. G. Jeffreys's Notes on Swiss Mollusca. 31 



Limneus minutus, Urap. 



Neighbourhood of Lausanne ; Lac du Brcnet ; Yalk'e de Bagnes ; 

 Valley of the Rhone. Common, and widely dispersed. 



Limneus auricularius, Drap. 



Lac de Bret ; Les Grangcttes, and other marshes bordering on 

 the Lake of Geneva. 



The L. acronicus of Stiider [L. ampullaceus of Rossmassler) 

 is a well-marked variety or form of this protean species. 



Limnexis pei-eger, Drap. 



Var. Limneus rimatus, Braun. 

 Gryon ; Chessieres (Charp.). 



Var. Limneus Blauneri, Shuttl. 



Schwartzee, near Zmutt (Shuttl.). 



This variety resembles the " Gulnaria lacustris" of Leach. 



Var. Limneus vulgaris, Pfeiff. 

 Roche (Charp.). 



Limneus elongatus, Drap. 

 Canton du Tessin (Stab.). 



Phinorhis contortus, Drap. 



Lac du Morat, pres de Sallavaux (Charp.) ; — neighbourhood of 

 Lausanne ; Lac du Breuet ; marsh between Martigny and 

 St. Maurice. Not uncommon. 



Planorbis leucostoma, Mich. 



Neighbourhood of Lausanne ; Lac de Bret ; Yufflens. 



This common species is not, however, the P. spirorbis of Dra- 

 parnaud, to which Studer and Charpentier have referred it. 



Planorbis cnrinatus, Drap. 



Lakes of Geneva and Brenet. 



The variety described by M. Charpentier under the name of 

 P. intermedins, is the P. carinatus of my Monograph in the 

 ' Linnfean Transactions' ; the typical or extreme form having 

 been named by me P. disciformis. 



Planorbis hispidus, Drap. 



Noville ; Valley of the Rhone (Charp.) ; — Les Pierrettes ; Lac du 

 Brenet. Not uncommon. 



