Females: Mx1Li4 consisting of short protuberance with seta; Mx1Enp with 1 seta; R claw-like, with constriction at base in lateral view. More characters can be accessed by backtracking the key: Page 1242
Males unknown.
Kingdom Animalia Phylum Crustacea Class Maxillopoda Subclass Copepoda Order Cyclopoida Family Oithonidae Genus Oithona Species Oithona hamata