CHRISTY : ON MOLLUSCA COLLECTED IN SWITZERLAND, 57 



Hotel Here I found several sorts living among the roots of 

 the grass, &c., just on the edge of the stream, where the 

 splashing of the water kept everything moist. Away from the 

 stream I could find no shells, but close to it Cochlicopa lubrica 

 and Pupa marginata lived sparingly, with a very few minute 

 Vertigos. I got one or two specimens of a Succinea (Jputris)^ 

 but S. oblonga, both alive and dead, abounded, and many of 

 the specimens were very fine. There were many dead shells of 

 this species which were quite white, but I found one. specimen 

 alive that had a pure white shell. Helix arbustorum var. 

 alpestris (or a variety approaching it) was very common up the 

 sides of the stream wherever the spray kept the grass moist, for 

 a considerable distance, perhaps 700 feet above the Hotel. 

 Lymn<za peregra var. decollata was very common adhering to 

 stones in the Silser See or Sils Lake, the Kampfer Lake and 

 the Lake of St. Moritz, as well as in the River Inn which runs 

 through and connects all the above lakes. This species was 

 the only one I could detect in the Lake of St. Moritz, but in 

 the Kampfer Lake I found a number of dead specimens of 

 Planorbis spirorbis. In the Statz Lake I could not find any 

 shells whatever. It is the small lake alongside of which the 

 foot-path to Pontresina runs. It is situated in the pine forest 

 and is about a quarter of a mile from the Lake of St. Moritz, 

 though about 50 feet higher, and the river does not run through 

 it. The pine forests seemed as if they were absolutely shell-less 

 until on the 9th of August I found, by careful searching among 

 the roots of the grass, a few specimens of a small Vitrina and 

 an unidentified Limax about an inch long. I noticed in several 

 instances, as I have done with other species in England, that 

 two individuals were lying together — I suppose so that as little 

 as possible of the moisture of their bodies should be lost. I 

 also met with V. pellucida, I believe, on one occasion. I did 

 not see any other species away in the forests. A small expanse 

 of mud beside the river became uncovered when the water got 

 low about the end of August, when most of the snow on the 



