Natural History of East Finmarh. 



361 



The following species have not been found under more 

 arctic conditions than those existino: in East Finmark : — 



Typhlomangelia nivalis. 

 Sjnrotrojns carinata, 

 Taranis cirrata. 

 Odostomia turgida. 



unidentata. 



turrita. 



Pyrgxdina eximia. 



sjnralis. 



Eulima bilineata. 

 Alvania Jeffreysii. 

 Jeffreysia ylohularis. 

 Marsenia prodita. 



Oihbida tumida. 

 Pilidium falvum. 

 Hiudeyia dehilis. 

 Pectea tiyrinus. 

 • septi^mradiatus. 



Limea Sarsi. 

 Modiola phaseolina. 

 Venus f/allina. 



fasciata. 



Lucina horealis. 

 Mactra subtruncata. 

 Corbula yibba. 



A comparison of this list of East Finmark Mollusca with 

 two Norwegian catalogues which I have previously published 

 will illustrate the changes in the Molluscan Fauna as we go 

 further north up the Norwegian coast (see Norman, "Mollusca 

 of the Fiords near Bergen," Journal of Conchology, vol. ii. 

 1879, p. 8 ; and " A Month on the Trondhjem Fiord," Ann. 

 & Mag. Nat. Hist. ser. 6, vol. xii. 1893, p. 311). 



[To be coutiuued.] 



