Examining the highlighted area of your specimen,
click on the image below which most closely
resembles your specimen.
Spines over posterior 3/4 of ventral margin
Spines over slightly more than 1/2 of ventral margin
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Branchiopoda
Suborder
Cladocera
Family
Daphniidae
Genus
Daphnia