Examining the highlighted area of your specimen, click on the image below which most closely resembles your specimen.
Length of caudal ramus
(cr)
> three times its width
Length of caudal ramus
(cr)
< three times its width
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Maxillopoda
Subclass
Copepoda
Order
Calanoida
Family