Examining the highlighted area of your specimen, click on the image below which most closely resembles your specimen.
Right
(R5L)
and left fifth leg
(L5L)
of similar length
Left fifth leg
(L5L)
shorter than the right fifth leg
(R5L)
.
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Maxillopoda
Subclass
Copepoda
Order
Calanoida
Family
Diaptomidae