Examining the highlighted area of your specimen, click on the image below which most closely resembles your specimen. Lateral setae (LS) inserted at middle of rami Lateral setae (LS) inserted at apex of rami   Lateral setae at middle of rami (LS)     Taxonomy Phylum Arthropoda Subphylum Crustacea Class Maxillopoda Subclass Copepoda Order Cyclopoida Family Cyclopidae