: Alona affinis.

Alona affinis is the largest species in the genus Alona. It is a very common littoral species which is distributed in all parts of the country and found in all types and sizes of water bodies from sea level and up to alpine areas.

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