Examining the highlighted area of your specimen, click on the image below which most closely resembles your specimen.
1st right exopod with one or two hyaline membranes
(hm)
1st right exopod without hyaline membranes
Taxonomy
Phylum
Arthropoda
Subphylum
Crustacea
Class
Maxillopoda
Subclass
Copepoda
Order
Calanoida
Family
Diaptomidae