Oithona atlantica Farran, 1908
Oithona brevicornis Giesbrecht, 1891 represented as Oithona brevicornis brevicornis Giesbrecht, 1891
Oithona brevicornis brevicornis Giesbrecht, 1891
Oithona helgolandica (Claus, 1863) accepted as Oithona similis Claus, 1866
Oithona nana Giesbrecht, 1893
Oithona plumifera Baird, 1843
Oithona plumifera plumifera Baird, 1843 accepted as Oithona plumifera Baird, 1843
Oithona setigera Dana, 1853-1855 represented as Oithona setigera setigera Dana, 1853-1855
Oithona setigera setigera Dana, 1853-1855
Oithona similis Claus, 1866
Oithona spinirostris Claus, 1863 accepted as Oithona setigera Dana, 1853-1855 represented as Oithona setigera setigera Dana, 1853-1855
Oithona tenuis Rosendorn, 1917