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



Helix rufescenSy Montagu (var.). 

 Helix circinata and montanay Stud. 

 Var. Albida. 

 Mont Tendre. 



Helix (Trichia) clandestinaj Hartmaun. 

 Zurich; Lucerne; Schwyz (Charp.). 



Helix striffella, Drap. 



Foully; Sion; Tourbillon, and other parts of the Valais (Charp.); — 

 Clermont, and on the side of the Geneva road near Lausanne ; 

 St. Nicholas ; Chable. 



Helix fruticurriy Drap. 

 Salev^e, near Geneva. 



Helix Carthusianella, Drap. 



Near Aigle (Charp.), and found by myself at Devens. 



Helix incarnata, Drap. 



Belmont and Sauvebelin Woods, near Lausanne ; Dent de Jaman ; 

 Pr^ de Joux ; Vufflens. Common. 



Helix candidulttf Stud. 

 Le Saleve, near Geneva. 

 The Helix Cenisia of Charpentier is theH. apicinaoi Lamarck. 



Helix rotundatttj Miill. 

 Var, Albida. 

 Belmont and Berne road, near Lausanne. 



Helix ruderatay Stud. 



Vallee d'Ormonts (Charp.); — Valley of St. Nicholas and Zermatt, 

 where I also found a greenish-white variety. Not uncommon. 



Helix rupestrisy Drap. 



Var. (?) H umbilicata, Mont. 



On rocks and under stones in many places, and at different heights 

 varying from 1200 to 5000 feet above the sea-level. Common. 



This species was accidentally omitted by M. Charpentier in 

 his Catalogue. I am not satisfied that the H umbilicata of 

 Montagu is not specifically distinct. This and the typical form 

 are found together on the limestone rocks near St. Maurice. 



