Females: P2-P4 Exp1 with short inner seta; P3 Exp3 with 2 rudimentaryspinules on outer margin. More characters can be accessed by backtracking the key: Page 1240
Males unknown.
Kingdom Animalia Phylum Crustacea Class Maxillopoda Subclass Copepoda Order Cyclopoida Family Oithonidae Genus Oithona Species Oithona pseudofrigida