FISH, REPTILES, AND INSECTS OE LAPLAND. 167 



in Lapland, nor do I ever remember noticing a 

 common land snail, although, there were many 

 little water snails in some of the waters here. I 

 saw only one snake all the time I was up. This was 

 a female adder about 18 inches long, early in June. 



In a small river near lockmock they find a 

 species of pearl, and the shells of this Lapland 

 pearl mussel appear to be exactly identical with 

 those we pick up in some of our Wermland brooks. 

 I bought some on my way down, which I sent to 

 England, where, however, they were little valued. 



The Quickiock district was very rich in insects, 

 and a wide field is open to the entomologist, for 

 many rare and beautiful butterflies abound on 

 these fells, among them I may mention — 



Chionalias ISTorna. 

 Erebia Medusa. 



„ Embla — peculiar I believe to Sweden. 

 „ Disa. 

 „ Manto. 

 Melitaea Iduna — peculiar to Sweden. 

 Argynnis Ereja. 

 „ Polaris. 

 „ Dia. 

 „ Erigga. 

 „ Thore. 

 Colias Boothii. 

 „ ISTastes. 

 Lycasna Aquila — which has only yet been taken at 

 Quickiock, by Walberg, and considered 

 the rarest butterfly in Sweden. 

 Lyrichlus Centaurus, and some others. 



