Females: MdEnp with minute seta and 3 setae subequal in length; Mx1Li2 present and armed with 1 seta; Mx1Le1 represented by 1 seta. More characters can be accessed by backtracking the key: Page 1243
Males: P2 Exp3 with 2 outer spines. More characters can be accessed by backtracking the key: Page 1258
Kingdom Animalia Phylum Crustacea Class Maxillopoda Subclass Copepoda Order Cyclopoida Family Oithonidae Genus Oithona Species Oithona similis