thumb|right|Unidentified species of Diaptomus from the Great Lakes Diaptomus is a genus of copepods with a single eye spot. It is superficially similar in size and appearance to Cyclops. However it has characteristically very long first antennae that exceed the body length. In addition, the females carry the eggs in a single sac rather than the twin sacs seen in Cyclops. It is a copepod of larger freshwater ponds, lakes and still waters.
thumb|right|Unidentified species of Diaptomus from the Great Lakes Diaptomus is a genus of copepods with a single eye spot. It is superficially similar in size and appearance to Cyclops. However it has characteristically very long first antennae that exceed the body length. In addition, the females carry the eggs in a single sac rather than the twin sacs seen in Cyclops. It is a copepod of larger freshwater ponds, lakes and still waters.
==Species== Diaptomus contains more than 60 species; many species formerly included in Diaptomus are now in separate genera such as Aglaodiaptomus and Notodiaptomus. One species, the German endemic D. rostripes, is included on the IUCN Red List as a Data Deficient species. Diaptomus affinis Ulyanin, 1875 Diaptomus africanus Daday, 1910 Diaptomus alpestris (Vogt, 1845) Diaptomus angustaensis Turner, 1910 Diaptomus armatus Herrick, 1882 Diaptomus azureus Reid, 1985 Diaptomus barabinensis Stepanova, 2008 Diaptomus bidens Brehm, 1924 Diaptomus biseratus Gjorgjewic, 1907 Diaptomus borealis (Fischer, 1851) Diaptomus caeruleus (Koch, 1844) Diaptomus caesius (Koch, 1844) Diaptomus carinifera Lowndes, 1934 Diaptomus carnicus Senna, 1890 Diaptomus castaneti Burckhardt, 1920 Diaptomus castor (Jurine, 1820) Diaptomus claviger O. F. Müller, 1785 Diaptomus cookii King, 1855 Diaptomus cyaneus Gurney, 1909 Diaptomus falcifer Daday, 1905 Diaptomus falsomirus Kiefer, 1972 Diaptomus flagellatus Ulyanin, 1874 Diaptomus flagellifer Brehm, 1953 Diaptomus fluminensis Reid, 1985 Diaptomus fuscatus Brady, 1913 Diaptomus ganesa (Brehm, 1950) Diaptomus gatunensis Marsh, 1913 Diaptomus giganteus Herrick, 1881 Diaptomus glacialis Lilljeborg, 1889 Diaptomus guernei Imhof, 1891 Diaptomus helveticus Imhof, 1885 Diaptomus hyalinus (Koch, 1844) Diaptomus informis (Kiefer, 1936) Diaptomus innominatus Brady, 1907 Diaptomus kenitraensis Kiefer, 1926 Diaptomus kentuckyensis Chambers, 1881 Diaptomus kincaidi Damkaer, 1988 Diaptomus leoninicollinus Marsh, 1913 Diaptomus ligericus Labbé, 1927 Diaptomus lighti M. S. Wilson, 1941 Diaptomus ligusticus Brian, 1927 Diaptomus linus Brandorff, 1973 Diaptomus longicornis Nicolet, 1848 Diaptomus maria King, 1855 Diaptomus meridionalis Kiefer, 1933 Diaptomus mirus Lilljeborg in Guerne & Richard, 1889 Diaptomus muelleri (Ferussac, 1806) Diaptomus negrensis Andrade & Brandorff, 1975 Diaptomus nigerianus Brady, 1910 Diaptomus ovatus (Koch, 1844) Diaptomus palustris Kiss, 1960 Diaptomus pattersonii (Templeton, 1838) Diaptomus pictus Brady, 1913 Diaptomus pollux King, 1855 Diaptomus rehmanni Grochmalicki, 1913 Diaptomus rostripes Herbst, 1955 Diaptomus rubens (O. F. Müller, 1785) Diaptomus rubens (Koch, 1844) Diaptomus santafesinus Ringuelet & Ferrato, 1967 Diaptomus silvaticus S. Wright, 1927 Diaptomus staphylinus (Milne Edwards, 1840) Diaptomus tenuicornis (Dana, 1849) Diaptomus trybomi Lilljeborg in Guerne & Richard, 1889 Diaptomus uxorius King, 1855 Diaptomus vexillifer Brehm, 1933 Diaptomus wolterecki (Brehm, 1933) Diaptomus zografi Kritchagin, 1887
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).