Branchiopoda

Branchiopoda is a class of crustaceans. It comprises fairy shrimp, clam shrimp, Cladocera, Notostraca and the Devonian Lepidocaris. They are mostly small, freshwater animals that feed on plankton and detritus, with the exception of the Cladocera, many of which are marine. For more information, visit the Wikipedia entry. Get back to Crustacea
Daphnia pulex	Fairy shrimp	Longtail tadpole shrimp
Predatory water flea