Land and Freshwater Mollusca. 99 



shell from „Fløifjeld" is brown with a greenish tinge. It is 

 thus evident that in Norvay, it is no rule that the brown 

 colour of the shells becomes lighter as the go farther north- 

 ward any more than by rising in altitude. It is said, that 

 it was once found in great numbers in Tromsdalen It is 

 knoTv^n with certainty, that it lives very high up on „Troms- 

 dalstind", but I have not yet seen any specimens. 



var. alpestris. Together with Eul. fruticum from Lo- 

 foten, at the museum of Christiania. 



var. morbosa — albina Rosro. Tranø in Hammerø, 

 Pupa Drp. 



P. muscorum L. Verry common on Tromsøen, espe- 

 cially where limestone prevails. Unidentdta is only one out 

 of 48 shells. From Hornø at Vardø are collected 24 full- 

 grown specimens', only two are unidentata. 



P. inornata Mich. 



var. Gredleri Cles. Only one shell from the lime- 

 stone quarry, behind the parish church on Tromsøen. Abun- 

 dantly under stones on Hornø at Vardø. 



P. alpestris Aid. A large, glossy, dark brown shell 

 from Brevik on Tromsøen. 



P. arctica Wallenb. 



Shell dark horncolour, the tooth on the pillar lip is 

 small, on some specimens it is vanished ; none of them have 

 any tooth inside the outer lip. 



This species is new to Norvay. Mr. Schneider found 

 it this summer under stones together with P. Gredleri on 

 Hornø at Vardø. Wallenberg found it first in Luleå Lapmark, 

 Müller and Mørch mentions it from Greenland as P. hoppei' 

 As it is found many places in Sveden, is it most likely to 

 b(Be found in other localities ; this time it was only by chance 

 it was found. 



Cochlicopa Risso. 



Ç, lubriçq MtiU- Common everywhere Ofli Troms^ei^. 



