Click on the image which your specimen most closely resembles.
Postabdominal claw
(pc)
with four spines; dorsal ramus
(dr)
of antenna with three segments
Postabdominal claw
(pc)
with three spines; dorsal ramus
(dr)
of antenna with two segments
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Brachiopoda
Suborder
Cladocera
Family
Sididae