Oithona amazonica- Oithona atlantica
- Oithona attenuata
- Oithona australis
- Oithona bjornbergae
- Oithona brevicornis
- Oithona colcarva
- Oithona davisae
- Oithona dissimilis
- Oithona fallax
- Oithona flemingeri
- Oithona fonsecae
- Oithona frigida
- Oithona hamata
- Oithona hebes
- Oithona linearis
- Oithona minuta
- Oithona munita
- Oithona nana
- Oithona nishidai
- Oithona oswaldocruzi
- Oithona parvula
- Oithona plumifera
- Oithona pseudofrigida
- Oithona robertsoni
- Oithona robusta
- Oithona setigera
- Oithona similis
- Oithona simplex
- Oithona tenuis
- Oithona wellershausi