Click on the image which your specimen most closely resembles.
Antennules
(ant)
one segmented, carapace generally not covered with detritus
Antennules
(ant)
two segmented, carapace generally covered with detritus
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Branchiopoda
Suborder
Cladocera