: Alona karelica.

Alona karelica has either a bright grey colour, or may be hyaline. The first record in Norway was made in 1978, but later it has been found many times. It is associated with neutral, electrolyte rich lakes. 

Alona karelica Stenroos
Creative Commons Attribution | Bjørn Walseng | Norsk institutt for naturforskning
Kart. Utbredelse i Norge.