FISH, REPTILES, AND INSECTS OF 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 Norna. 

 Erebia Medusa. 



Embla peculiar I believe to Sweden. 

 Disa. 

 Manto. 



Melitaea Iduna peculiar to Sweden. 

 Argynnis Freja. 

 Polaris. 

 Dia. 



Frigga. 

 Thore. 



Colias Boothii. 

 Nastes. 



Lycaena Aquila which has only yet been taken at 

 Quickiock, by Walberg, and considered 

 the rarest butterfly in Sweden. 

 Lyrichlns Centaurus, and some others. 



