Daphnia pulex
Originator: Frode Falkenberg
Systematics :
Kingdom: Animals (Animalia)
Phylum: Articulate animals (Arthropoda)
Subphylum: Crustacea
Class: Branchiopoda
Order: Cladocera
Family: Daphnidae
Genus: Daphnia
Species: Daphnia pulex
Confusion species: Daphnia longispina