Examining the highlighted area of your specimen,
click on the image below which most closely
resembles your specimen.
Head slopes quickly after eye,
producing an angle
(a)
of around 45 degrees
Head slopes gradually after eye,
producing an angle
(a)
of greater than 45 degrees
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Branchiopoda
Suborder
Cladocera
Family
Daphniidae
Genus
Daphnia