: Daphnia cristata.

Daphnia cristata is easily separated from other daphnids since the bristle on the first joint of the three-segmented-branch of the second pair of antennae lacks. Though it is widely distributed in Norway, it is most common in the Southeast.

Daphnia cristata Sars
Creative Commons Attribution | Bjørn Walseng | Norsk institutt for naturforskning
Kart. Utbredelse i Norge.