fiSMARK : MOLLUSCA OF NORWAY, 103 



Arion hortensis Fer. Common in the Christiania, Chris- 

 tiansand, and Ilamar Stifts ; the most northern locality is 

 Trondenses on Hindo in the Amt of Tromso. 

 A. citrinus West. Ringerige and Herfjeldet in Christiania 

 Stift. 



Family HELICID^. 



Subfamily VITRININ^. 



Genus VITRINA Drap. 



Subgenus PHENACOLIMAX Stabile. 



Vitrina pellucida Miill. Very common in the south; ex- 

 tends to the north of Amt of Nordland. 



V. angelica Beck. From the north of Bergen Stift, and 

 very common in Tromso Amt; from Tromsden, Maal- 

 selven, Reno, Karlso ; and from Vardo, Porsangerfjord, 

 Lebesby, and Varangerfjord in the Amt of Finmarken. 



Subfamily ZONITIN^E. 



Genus HYALINIA Agass. 



Subgenus HYALINIA Gray. 



Hyalinia cellaria Miill. Not very common. In the vicinity 



of Christiania, Skien, Porsgrund, Brevik, Arendal, and 



Lillesand in Christiansand Stift ; Manger in Bergen Stift. 

 H. cellaria var. compacta Jeff. Modum. 

 H. cellaria var. plana B. Esm. The shell on the upper side 



flat. Manger in Bergen Stift. 

 H. alliaria Miill. Uncommon. Modum, Ringerige, Laurvik, 



Lillesand, Tromso, near Arendal ; Bergen. 

 H. nitidula Drap. Christiania, Bygdd, Langesund, Bergen. 

 H. pura Aid. Rare. Modum, Eker, and Langesund. 

 H. pura var. viridula Menke. Modum, Langesund, Skien; 



Manger in Bergen Stift ; and Romsdalen in Throndhjem 



Stift. 

 H. hammonis Strom. Very common all over the country. 

 H. hamnnonis var. virescens. Fagerheim near Tonsberg, 



Christiania Stift. 

 H. petronella Charp. As common as If. /lammom's, and 



very often in company with it. 



