Examining the highlighted area of your specimen, click on the image below which most closely resembles your specimen.
Ridge
(r)
present on dorsal, back, side of rami
No ridge on rami
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Copepoda
Subclass
Copepoda
Order
Eucopepoda
Family
Cyclopoida