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Examining the highlighted area of your specimen, click on the image below which most closely resembles your specimen.
Outer margins of caudal rami with denticles Outer margins of caudal rami smooth
 
 
Taxonomy
Phylum Arthropoda
Subphylum Crustacea
Class Maxillopoda
Subclass Copepoda
Order Cyclopoida
Family Cyclopidae