Cyclopetta difficilis Sars G.O., 1913 (additional source)
Cyclopina Claus, 1863 (additional source)
Cyclopina brachystylis Sars G.O., 1921 (additional source)
Cyclopina dilatata Sars G.O., 1921 accepted as Cyclopinoides dilatata (Sars G.O., 1921) (additional source)
Cyclopina elegans Scott T., 1894 accepted as Cyclopinodes elegans (Scott T., 1894) (additional source)
Cyclopina euacantha Sars G.O., 1918 accepted as Cyclopidina euacantha (Sars G.O., 1918) (additional source)
Cyclopina gracilis Claus, 1863 (additional source)
Cyclopina littoralis (Brady, 1872) accepted as Cyclopinoides littoralis (Brady, 1872) (additional source)
Cyclopina longicornis Boeck, 1873 accepted as Cyclopinoides longicornis (Boeck, 1873) (additional source)
Cyclopina norvegica Boeck, 1865 (additional source)
Cyclopina pygmaea Sars G.O., 1918 (additional source)
Cyclopina schneideri Scott T., 1903 (additional source)
Cyclopina steueri Früchtl, 1923 (additional source)
Cyclopinella tumidula Sars G.O., 1913 (additional source)
Cyclops Müller O.F., 1785 (additional source)
Cyclops strenuus Fischer, 1851 represented as Cyclops strenuus strenuus Fischer, 1851 (additional source)
Diacyclops bicuspidatus (Claus, 1857) represented as Diacyclops bicuspidatus bicuspidatus (Claus, 1857) (additional source)
Diacyclops nanus (Sars G.O., 1863) represented as Diacyclops nanus nanus (Sars G.O., 1863) (additional source)
Eucyclops Claus, 1893 (additional source)
Euryte Philippi, 1843 (additional source)
Euryte curticornis Sars G.O., 1913 (additional source)
Euryte longicauda Philippi, 1843 represented as Euryte longicauda minor Scott T., 1905 accepted as Euryte minor Scott T., 1905 (additional source)
Euryte robusta Giesbrecht, 1900 (additional source)
Halicyclops Norman, 1903 (additional source)
Megacyclops viridis (Jurine, 1820) represented as Megacyclops viridis viridis (Jurine, 1820) (additional source)
Mesocyclops Sars G.O., 1914 (additional source)
Mesocyclops (Mesocyclops) Kiefer, 1929 accepted as Mesocyclops Sars G.O., 1914 (original description)
Mesocyclops leuckarti (Claus, 1857) represented as Mesocyclops (Mesocyclops) leuckarti (Claus, 1857) represented as Mesocyclops (Mesocyclops) leuckarti leuckarti (Claus, 1857) (additional source)
Neocyclops Gurney, 1927 (additional source)
Oithona Baird, 1843 (additional source)
Oithona atlantica Farran, 1908 (additional source)
Oithona brevicornis Giesbrecht, 1891 represented as Oithona brevicornis brevicornis Giesbrecht, 1891 (additional source)
Oithona decipiens Farran, 1913 (additional source)
Oithona fallax Farran, 1913 (additional source)
Oithona hamata Rosendorn, 1917 (additional source)
Oithona hebes Giesbrecht, 1891 (additional source)
Oithona nana Giesbrecht, 1893 (additional source)
Oithona plumifera Baird, 1843 (additional source)
Oithona pseudofrigida Rosendorn, 1917 (additional source)
Oithona robusta Giesbrecht, 1891 (additional source)
Oithona setigera Dana, 1853-1855 represented as Oithona setigera setigera Dana, 1853-1855 (additional source)
Oithona similis Claus, 1866 (additional source)
Oithona tenuis Rosendorn, 1917 (additional source)
Oithona vivida Farran, 1913 (additional source)
Paroithona Farran, 1908 accepted as Oithona Baird, 1843 (additional source)
Paroithona parvula Farran, 1908 accepted as Oithona parvula (Farran, 1908) (additional source)
Paroithona pulla Farran, 1913 accepted as Oithona pulla (Farran, 1913) (additional source)
Pterinopsyllus Brady, 1880 (additional source)
Pterinopsyllus egregius Giesbrecht, 1900 (additional source)
Pterinopsyllus illustris Giesbrecht, 1900 (additional source)
Pterinopsyllus insignis (Brady & Robertson, 1876) accepted as Pterinopsyllus insignis (Brady, 1878) (additional source)