Females: P3 Exp3 with 2 outer marginal spines, proximalmost reduced and smooth; MdEnp with 4 setae; Mx1 without Li4. More characters can be accessed by backtracking the key: Page 1239
Males: unknown.
Kingdom Animalia Phylum Crustacea Class Maxillopoda Subclass Copepoda Order Cyclopoida Family Oithonidae Genus Oithona Species Oithona vivida