Cyclops Müller, 1776

Cyclops abnobensis Brehm, 1958

Cyclops abyssicola Lilljeborg, 1901

Cyclops abyssorum G. O. Sars, 1863

Cyclops acanthoides Douwe, 1914

Cyclops adolescens Herrick, 1882

Cyclops aequoreus Fischer, 1860

Cyclops affinis Sars G.O., 1863

Cyclops africanus Bourne, 1893

Cyclops agilis Koch, 1838

Cyclops agiloides Sars G.O., 1909

Cyclops alajensis Ulyanin, 1874

Cyclops albicans Smith G.W., 1909

Cyclops alius Kiefer, 1935

Cyclops alpestris Daday, 1885

Cyclops alticola Kiefer, 1935

Cyclops americanus Marsh, 1893

Cyclops amoenus Mann, 1940

Cyclops angustus Sars G.O., 1909

Cyclops ankyrae Mann, 1940

Cyclops annulatus Wierzejski, 1893

Cyclops annulicornis Koch, 1838

Cyclops anophthalmus Joseph, 1882

Cyclops argulus (Fabricius, 1793)

Cyclops armatus Tilesius, 1815

Cyclops aspericornis Daday, 1906

Cyclops ater Herrick, 1882

Cyclops attenuatus Sars G.O., 1909

Cyclops aurantius Fischer, 1860

Cyclops australis King, 1855

Cyclops baicalensis Vassilieva, 1950

Cyclops bathybius Daday, 1896

Cyclops bicolor Sars G.O., 1863

Cyclops bicuspidatus Claus, 1857

Cyclops bisetosus Rehberg, 1880

Cyclops bissextilis Willey, 1925

Cyclops bistriatus Koch, 1838

Cyclops bodamicus Vosseler, 1886

Cyclops bodanus Kiefer, 1954

Cyclops bogoriensis Menzel, 1926

Cyclops bohater Kozminski, 1933

Cyclops bohemicus Srámek-Husek, 1938

Cyclops bopsini Studer, 1878

Cyclops brachypus (Kiefer, 1955)

Cyclops bracteatus (Müller O.F., 1776)

Cyclops brasiliensis Dana, 1849

Cyclops brehmi (Kiefer, 1927)

Cyclops brevicaudatus Claus, 1857

Cyclops brevicornis Baird, 1835

Cyclops brevipes Brady, 1910

Cyclops brevisetosus Daday, 1885

Cyclops brevispinosus Herrick, 1884

Cyclops brucei Scott T., 1899

Cyclops buxtoni Gurney, 1921

Cyclops cabanensis Russki, 1889

Cyclops caeruleus Müller O.F., 1776

Cyclops canadensis Einsle, 1988

Cyclops canthocarpoides Fischer, 1851

Cyclops capillatus Sars G.O., 1863

Cyclops capilliferus Forbes S.A., 1893

Cyclops carolinianus Yeatman, 1944

Cyclops caspicus Lindberg, 1942

Cyclops castor Desmarest, 1825

Cyclops caudatus (Sars G.O., 1927)

Cyclops cavernarum Ulrich, 1902

Cyclops ceibaensis Marsh, 1919

Cyclops cerberus Chappuis, 1934

Cyclops charon Kiefer, 1931

Cyclops chiltoni Thomson G.M., 1883

Cyclops ciliatus Sars G.O., 1909

Cyclops clandestinus (Kiefer, 1926)

Cyclops claudiopolitanus Daday, 1885

Cyclops clausii Poggenpol, 1874

Cyclops claviger Müller O.F., 1785

Cyclops coecus Pratz, 1866

Cyclops colchidanus Borutsky, 1930

Cyclops columbianus Lindberg, 1956

Cyclops communis Lindberg, 1938

Cyclops compactus Sars G.O., 1909

Cyclops coronatus Claus, 1857

Cyclops crassicaudis Sars G.O., 1863

Cyclops crassicaudoides Kiefer, 1928

Cyclops crassicornis Müller O.F., 1785

Cyclops crinitus Graeter, 1910

Cyclops croaticus Krmpotic, 1924

Cyclops cunningtoni Sars G.O., 1909

Cyclops curticaudus Dana, 1847

Cyclops curticornis Müller O.F., 1785

Cyclops cyprinaceus (Shaw, 1789)

Cyclops davidi Chappuis, 1922

Cyclops delachauxi Kiefer, 1925

Cyclops delphinus (Müller O.F., 1785)

Cyclops demetiensis Scourfield, 1932

Cyclops dengizicus Lepeshkin, 1900

Cyclops dentatimanus Marsh, 1913

Cyclops dentatus Koch, 1844

Cyclops denticulatus Nicolet, 1849

Cyclops depressus Baird, 1837

Cyclops diaphanus Fischer, 1853

Cyclops diminuta Lindberg, 1937

Cyclops dimorphus Kiefer, 1934

Cyclops distans Kiefer, 1956

Cyclops distinctus Richard, 1887

Cyclops diversus (Kiefer, 1935)

Cyclops divulsus Lindberg, 1956

Cyclops donnaldsoni Chappuis, 1929

Cyclops dubitabilis Kiefer, 1934

Cyclops dubius Sars G.O., 1909

Cyclops dulvertonensis Smith G.W., 1909

Cyclops dumasti Joly, 1883

Cyclops dybowskii Landé, 1890

Cyclops eboracensis Brady, 1902

Cyclops echinatus Kiefer, 1926

Cyclops ecornis Tilesius, 1819

Cyclops edax Forbes S.A., 1890

Cyclops elegans Herrick, 1884

Cyclops elgonensis Kiefer, 1932

Cyclops elongatus Claus, 1863

Cyclops emini Mrázek, 1898

Cyclops entzii Daday, 1885

Cyclops euacanthus Sars G.O., 1909

Cyclops ewarti Brady, 1888

Cyclops exiguus Sars G.O., 1909

Cyclops exilis Coker, 1934

Cyclops exsulis Gauthier, 1951

Cyclops falsus Kiefer, 1929

Cyclops fasciacornis Cragin, 1883

Cyclops fedtschenkoi Ulyanin, 1875

Cyclops feuerborni Kiefer, 1933

Cyclops fimbriatus Fischer, 1853

Cyclops finmarchicus Müller O.F., 1776

Cyclops fischeri Poggenpol, 1874

Cyclops flexipes Kokubo, 1912

Cyclops fluviatilis Herrick, 1882

Cyclops forbesi Herrick, 1895

Cyclops formosanus Harada, 1931

Cyclops fragilis Kiefer, 1926

Cyclops franciscoloi Brian, 1951

Cyclops frivaldszkyi Daday, 1885

Cyclops furcifer Claus, 1857

Cyclops furi Kozhova & Pavlov, 1986

Cyclops (Diacyclops) gauthieri Green, 1962

Cyclops gemellus (Gurney, 1928)

Cyclops geoffroyi Samouelle, 1819

Cyclops gibbus (Philippi, 1843)

Cyclops gibsoni Brady, 1904

Cyclops gigas Claus, 1857

Cyclops glacialis Brady, 1910

Cyclops gnatho (Philippi, 1843)

Cyclops gracilicornis Landé, 1891

Cyclops gracilis Lilljeborg, 1853

Cyclops grandis Kiefer, 1935

Cyclops grandispinifer Lindberg, 1940

Cyclops gredleri Heller, 1871

Cyclops gyrinus Forbes S.A., 1890

Cyclops hadjebensis Kiefer, 1926

Cyclops halepensis Chappuis, 1922

Cyclops hamatus Sovinsky, 1888

Cyclops harpacticoides Shmankevich, 1875

Cyclops haueri Kiefer, 1931

Cyclops heberti Einsle, 1996

Cyclops helgolandicus Rehberg, 1880

Cyclops helleri Brady, 1878

Cyclops horvathii Daday, 1885

Cyclops hungaricus Daday, 1885

Cyclops hutchinsoni Kiefer, 1936

Cyclops hypogeus Kiefer, 1930

Cyclops ignaeus Poggenpol, 1874

Cyclops igneus Poggenpol, 1874

Cyclops incertus Wolf, 1905

Cyclops indolusitanicus Lindberg, 1938

Cyclops inermis Tilesius, 1812

Cyclops infernus Kiefer, 1930

Cyclops ingens Herrick, 1882

Cyclops inopinatus (Sars G.O., 1927)

Cyclops inopinus Kiefer, 1926

Cyclops insectus Forbes S.A., 1882

Cyclops insignis Claus, 1857

Cyclops intermedius Sovinsky, 1888

Cyclops isodactylus (Philippi, 1843)

Cyclops jashnovi Streletskaya, 1990

Cyclops javanus Kiefer, 1930

Cyclops jeanneli Chappuis, 1929

Cyclops johnstoni Baird, 1834

Cyclops josephi Moniez, 1887

Cyclops juri Parveen, Mahoon & Saleem, 1990

Cyclops karamani Kiefer, 1932

Cyclops karvei Kiefer & Moorthy, 1935

Cyclops kaufmanni Ulyanin, 1875

Cyclops kentanensis Harada, 1931

Cyclops kieferi Chappuis, 1925

Cyclops kievensis Sovinsky, 1887

Cyclops kikuchii Smirnov, 1932

Cyclops kolensis Lilljeborg, 1901

Cyclops korostyschevi Sovinsky, 1888

Cyclops kozminskii Lindberg, 1942

Cyclops krillei Studer, 1878

Cyclops lacinulatus Müller O.F., 1776

Cyclops lacunae Lowndes, 1926

Cyclops lacustris Sars, 1863

Cyclops ladakanus Kiefer, 1936

Cyclops laevimargo Sars G.O., 1909

Cyclops landei Mahoon & Zia, 1985

Cyclops languidoides Lilljeborg, 1901

Cyclops languidulus Willey, 1925

Cyclops languidus (Sars G.O., 1863)

Cyclops lascivus Poggenpol, 1874

Cyclops laticauda Templeton, 1836

Cyclops latissimus Poggenpol, 1874

Cyclops laurenticus Lindberg, 1956

Cyclops learii Ulrich, 1902

Cyclops leewenhoekii Hoek, 1878

Cyclops leptopus Kiefer, 1927

Cyclops leuckarti Claus, 1857

Cyclops lilljeborgi Sars G.O., 1918

Cyclops linjanticus Kiefer, 1928

Cyclops littoralis Brady, 1872

Cyclops lobulosus Ekman, 1905

Cyclops longicaudatus Poggenpol, 1874

Cyclops longispina Templeton, 1836

Cyclops longistylis Brady, 1907

Cyclops lubbocki Brady, 1869

Cyclops lucidulus Koch, 1838

Cyclops maarensis Vosseler, 1889

Cyclops macleayi Dana, 1847

Cyclops macruroides Lilljeborg, 1901

Cyclops macrurus Sars G.O., 1863

Cyclops macuroides Lilljeborg, 1901

Cyclops madagascariensis Kiefer, 1926

Cyclops magnoctavus Cragin, 1883

Cyclops magnus Marsh, 1920

Cyclops malayicus Kiefer, 1930

Cyclops margaretae Lindberg, 1938

Cyclops margoi Daday, 1885

Cyclops matritensis Velasquez, 1941

Cyclops mendocinus Wierzejski, 1893

Cyclops menzeli Kiefer, 1926

Cyclops meridianus Kiefer, 1926

Cyclops michaelseni Mrázek, 1901

Cyclops micropus Kiefer, 1932

Cyclops miles Nicolet, 1849

Cyclops miniatus Lilljeborg, 1901

Cyclops minimus Kiefer, 1933

Cyclops minnilus Forbes S.A., 1893

Cyclops minuticornis Müller O.F., 1785

Cyclops minutissimus Kiefer, 1933

Cyclops minutus Claus, 1863

Cyclops modestus Herrick, 1883

Cyclops moghulensis Lindberg, 1939

Cyclops monardi Perret, 1925

Cyclops mongoliensis Einsle, 1992

Cyclops mulleri Ferussac, 1806

Cyclops muscicola Menzel, 1926

Cyclops muscicolus Lastochkin, 1927

Cyclops nanus Sars G.O., 1863

Cyclops naviculus Say, 1818

Cyclops navus Herrick, 1882

Cyclops nearcticus Kiefer, 1934

Cyclops necessarius Kiefer, 1926

Cyclops neglectus Sars G.O., 1909

Cyclops neumani Pesta, 1927

Cyclops neymanae Streletskaya, 1990

Cyclops niceae Mann, 1940

Cyclops nigeriae Brady, 1910

Cyclops nivalis Daday, 1885

Cyclops novaezealandiae Thomson G.M., 1879

Cyclops nubicus Chappuis, 1922

Cyclops obesicornis Templeton, 1836

Cyclops obsoletus Koch, 1838

Cyclops ochridanus Kiefer, 1932

Cyclops odessanus Shmankevich, 1875

Cyclops ohridanus Kieffer, 1832

Cyclops oithonoides Sars G.O., 1863

Cyclops oligarthrus Sars G.O., 1909

Cyclops operculatus Chappuis, 1917

Cyclops orientalis Ulyanin, 1875

Cyclops ornatus Poggenpol, 1874

Cyclops ovalis Brady, 1872

Cyclops pachycomus Sars G.O., 1909

Cyclops pallidus Norman, 1869

Cyclops paludicola Herbst, 1959

Cyclops palustris Sovinsky, 1888

Cyclops panamensis Marsh, 1913

Cyclops papuanus Daday, 1901

Cyclops paradyi Daday, 1885

Cyclops paraplesius Kiefer, 1929

Cyclops parcus Herrick, 1882

Cyclops pauper Fric, 1871

Cyclops pectinatus Herrick, 1883

Cyclops pectinifer Cragin, 1883

Cyclops pelagicus (Rose, 1929)

Cyclops pennatus Claus, 1857

Cyclops pentagonus Vosseler, 1886

Cyclops perarmatus Cragin, 1883

Cyclops phaleratus Koch, 1838

Cyclops phaleroides Labbé, 1927

Cyclops philippinensis Marsh, 1932

Cyclops phreaticus Chappuis, 1928

Cyclops pictus Koch, 1838

Cyclops pilosus Kiefer, 1934

Cyclops piscinus (Linnaeus, 1761)

Cyclops planus Gurney, 1909

Cyclops plumosus (Philippi, 1843)

Cyclops poggenpolii Sovinsky, 1888

Cyclops poppei Rehberg, 1880

Cyclops potamius Burckhardt, 1913

Cyclops prasinus Fischer, 1860

Cyclops prealpinus Kiefer, 1939

Cyclops procerus Herbst, 1955

Cyclops productus (Müller O.F., 1785)

Cyclops prolatus Kiefer, 1935

Cyclops pubescens Dana, 1847

Cyclops purpureus (Philippi, 1843)

Cyclops pusillus Brady, 1904

Cyclops puteanus Frey, 1869

Cyclops pygmaeus Rehberg, 1880

Cyclops quadricornis (Linnaeus, 1758)

Cyclops quinquepartitus Marsh, 1913

Cyclops racovitzai Chappuis, 1923

Cyclops rarispinus Sars G.O., 1909

Cyclops reductus Chappuis, 1925

Cyclops restrictus Lindberg, 1948

Cyclops ricae Monchenko, 1977

Cyclops richardi Lindberg, 1942

Cyclops roseus Daday, 1885

Cyclops rostratus (Philippi, 1843)

Cyclops roumaniae Cosmovici, 1900

Cyclops royi Lindberg, 1940

Cyclops rubellus Lilljeborg, 1901

Cyclops rubens Müller O.F., 1785

Cyclops salinus Brady, 1903

Cyclops salmoneus (Fabricius J.C., 1792)

Cyclops saltatonius (Müller O.F., 1776)

Cyclops sanfilippoi Brian, 1951

Cyclops sanguineus (Philippi, 1843)

Cyclops schmeili Poppe & Mrázek, 1895

Cyclops scourfieldi Brady, 1891

Cyclops scutifer G. O. Sars, 1863

Cyclops semiserratus Sars G.O., 1909

Cyclops sensitivus Graeter & Chappuis, 1914

Cyclops serratus Pratz, 1866

Cyclops serrulatoides Labbé, 1927

Cyclops serrulatus Fischer, 1851

Cyclops setiger Frey, 1869

Cyclops setosus Haldeman, 1842

Cyclops sevani Meshkova, 1947

Cyclops shatalovi Streletskaya, 1990

Cyclops signatus Koch, 1838

Cyclops silesicus Schäfer, 1934

Cyclops silvestrii Brian, 1927

Cyclops similis Templeton, 1836

Cyclops simillimus Brady, 1907

Cyclops simplex Poggenpol, 1874

Cyclops skopljensis Kiefer, 1932

Cyclops smirnovi Rylov, 1948

Cyclops soli Kokubo, 1912

Cyclops spartinus Ruber, 1966

Cyclops speratus Lilljeborg, 1901

Cyclops spinifer Daday, 1902

Cyclops spinulosus Claus, 1893

Cyclops stagnalis Einsle, 1996

Cyclops staheli Chappuis, 1917

Cyclops staphylinus Desmarest, 1825

Cyclops strengus Fischer, 1851

Cyclops strennus Fischer, 1851

Cyclops strenuus Fischer, 1851

Cyclops stuhlmanni Mrázek, 1895

Cyclops stygius Chappuis, 1924

Cyclops subaequalis Kiefer, 1928

Cyclops subterraneus Pratz, 1866

Cyclops subtropicus Lindberg, 1937

Cyclops sumatranus Kiefer, 1933

Cyclops sydneyensis Schmeil, 1898

Cyclops sylvestrii Brian, 1927

Cyclops taipehensis Harada, 1930

Cyclops tanganicae (Gurney, 1928)

Cyclops tatricus Kozminski, 1927

Cyclops tenellus Sars G.O., 1909

Cyclops tenuicaudis Daday, 1885

Cyclops tenuicornis Claus, 1857

Cyclops tenuipes (Philippi, 1843)

Cyclops tenuis Marsh, 1910

Cyclops tenuisaccus Sars G.O., 1927

Cyclops tenuissimus Herrick, 1883

Cyclops teras Graeter, 1907

Cyclops transilvanicus Daday, 1885

Cyclops tricolor Lindberg, 1937

Cyclops trisetosus Herbst, 1957

Cyclops triumvirorum Kiefer, 1935

Cyclops troglodytes Chappuis, 1923

Cyclops troglophilus Kiefer, 1932

Cyclops tropicus Kiefer, 1932

Cyclops trouchanowi Sovinsky, 1888

Cyclops uljanini Sovinsky, 1887

Cyclops uniangulatus Cragin, 1883

Cyclops unisetiger Graeter, 1899

Cyclops uruguayensis Kiefer, 1935

Cyclops varicans G. O. Sars, 1863

Cyclops varicoides Brady, 1908

Cyclops varius Lilljeborg, 1901

Cyclops venustoides Coker, 1934

Cyclops venustus Norman & Scott T., 1906

Cyclops vernalis Fischer, 1853

Cyclops vicinus Ulyanin, 1875

Cyclops viduus Kiefer, 1933

Cyclops vincentianus Brian, 1927

Cyclops vinceus Shmankevich, 1875

Cyclops virescens Brady, 1910

Cyclops viridis (Jurine, 1820)

Cyclops viridosignatus Byrnes E.F., 1909

Cyclops vitiensis Dana, 1847

Cyclops vulgaris Koch, 1838

Cyclops wigrensis Streletskaya, 1988

Cyclops zschokkei Graeter, 1910