Cyclops

**劍水蚤屬**（學名：_Cyclops_）是劍水蚤科下的一個屬，其物種亦是最常見的淡水橈腳類生物，包括有超過 400 個不同物種，當中在大中華地區有發現的有三種。
連同其他體型同樣微小的非橈腳類甲殼亞門物種，特別是枝角目，常被泛稱為「水蚤」。

## 語源

本屬的學名 _Cyclops_ 源自希臘神話的獨眼巨人，因為兩者同樣有一隻大眼睛。劍水蚤屬的大眼睛的顏色或紅或黑。

## 生物學防治

_Barbel_ 及 _Gambusia_ 這兩個細小魚類的屬都以劍水蚤屬物種為食。在印度的卡納塔克邦利用了這兩種魚的食性來去除可能感染了麥地那龍線蟲幼蟲的水蚤，從而消除透過受污染食水而引起的麥地那龍線蟲病。

## 物種

本屬過往曾包括有多個亞屬，但這些亞屬目前均已獨立出來成為各個屬，但在部分文獻（例如：《中國動物志》）仍然可能使用舊的分類。

現時本屬包括的物種計有：

* _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
* 近親劍水蚤 _Cyclops affinis_ G. O. Sars, 1863
* 非洲劍水蚤 _Cyclops africanus_ Bourne, 1893
* _Cyclops agilis_ Koch, 1838
* _Cyclops agiloides_ G. O. Sars, 1909
* _Cyclops alajensis_ Ulyanin, 1874
* _Cyclops albicans_ G. W. Smith, 1909
* 白劍水蚤 _Cyclops albidus_ Jurine, 1820
* _Cyclops alius_ Kiefer, 1935
* _Cyclops alpestris_ Daday, 1885
* _Cyclops alticola_ Kiefer, 1935
* _Cyclops americanus_ Marsh, 1893
* _Cyclops amoenus_ Mann, 1940
* _Cyclops anceps_ (Richard, 1897)
* _Cyclops angustus_ S. Grassel, 1999
* _Cyclops ankyrae_ Mann, 1940
* _Cyclops anninae_ Menzel, 1926
* _Cyclops annulatus_ Wierzejski, 1893
* _Cyclops annulicornis_ Koch, 1838
* _Cyclops anophthalmus_ Joseph, 1882
* _Cyclops argulus_ (Fabricius, 1793)
* _Cyclops armatus_ Tilesius, 1815
* _Cyclops arnaudi_ G. O. Sars, 1908
* _Cyclops aspericornis_ Daday, 1906
* _Cyclops ater_ Herrick, 1882
* _Cyclops attenuatus_ G. O. Sars, 1909
* _Cyclops aurantius_ Fischer, 1860
* 澳洲劍水蚤 _Cyclops australis_ King, 1855
* _Cyclops baicalensis_ Vassilieva, 1950
* _Cyclops bathybius_ Daday, 1896
* 二色劍水蚤 _Cyclops bicolor_ G. O. Sars, 1863
* 二刺劍水蚤 _Cyclops bicuspidatus_ Claus, 1857，二棘劍水蚤
* _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_ (O. F. Müller, 1776)
* _Cyclops brasiliensis_ Dana, 1849
* _Cyclops brehmi_ (Kiefer, 1927)
* 短尾劍水蚤 _Cyclops brevicaudatus_ Claus, 1857
* _Cyclops brevicornis_ Baird, 1835
* _Cyclops brevicornis_ Claus, 1857
* _Cyclops brevipes_ Brady, 1910
* _Cyclops brevisetosus_ Daday, 1885
* 短棘劍水蚤 _Cyclops brevispinosus_ Herrick, 1884
* _Cyclops brucei_ T. Scott, 1899
* _Cyclops buxtoni_ Gurney, 1921
* _Cyclops cabanensis_ Russki, 1889
* _Cyclops caeruleus_ O. F. Müller, 1776
* _Cyclops canadensis_ Einsle, 1988
* _Cyclops canthocarpoides_ Fischer, 1851
* _Cyclops capillatus_ G. O. Sars, 1863
* _Cyclops capilliferus_ S. A. Forbes, 1893
* _Cyclops carolinianus_ Yeatman, 1944
* _Cyclops caspicus_ Lindberg, 1942
* _Cyclops castor_ Desmarest, 1825
* _Cyclops caudatus_ (G. O. Sars, 1927)
* _Cyclops cavernarum_ Ulrich, 1902
* _Cyclops ceibaensis_ Marsh, 1919
* _Cyclops cerberus_ Chappuis, 1934
* _Cyclops charon_ Kiefer, 1931
* _Cyclops chelifer_ O. F. Müller, 1776
* _Cyclops chiltoni_ G. M. Thomson, 1883
* _Cyclops christianensis_ Boeck, 1872
* _Cyclops ciliatus_ G. O. Sars, 1909
* _Cyclops clandestinus_ Yeatman, 1964
* _Cyclops claudiopolitanus_ Daday, 1885
* _Cyclops clausii_ Lubbock, 1863
* _Cyclops clausii_ Poggenpol, 1874
* _Cyclops claviger_ O. F. Müller, 1785
* _Cyclops coecus_ Pratz, 1866
* _Cyclops coeruleus_ O. F. Müller, 1785
* _Cyclops colchidanus_ Borutsky, 1930
* _Cyclops columbianus_ Grassel, 1956
* _Cyclops communis_ Lindberg, 1938
* _Cyclops compactus_ G. O. Sars, 1909
* _Cyclops coronatus_ Claus, 1857
* _Cyclops crassicaudis_ G. O. Sars, 1863
* _Cyclops crassicaudoides_ Kiefer, 1928
* _Cyclops crassicornis_ O. F. Müller, 1785
* _Cyclops crinitus_ Graeter, 1910
* _Cyclops croaticus_ Krmpotic, 1924
* _Cyclops cunningtoni_ G. O. Sars, 1909
* _Cyclops curticaudus_ Dana, 1847
* _Cyclops curticornis_ O. F. Müller, 1785
* _Cyclops cyprinaceus_ (Shaw, 1789)
* _Cyclops davidi_ Chappuis, 1922
* _Cyclops delachauxi_ Kiefer, 1925
* _Cyclops delphinus_ (O. F. Müller, 1785)
* _Cyclops demetiensis_ Scourfield, 1932
* _Cyclops dengizicus_ Lepeshkin, 1900
* _Cyclops dentatimanus_ Marsh, 1913
* _Cyclops dentatus_ Rehberg, 1880
* _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_ G. O. Sars, 1909
* _Cyclops dulvertonensis_ G. W. Smith, 1909
* _Cyclops dumasti_ Joly, 1883
* _Cyclops dybowskii_ Landé, 1890
* _Cyclops eboracensis_ Brady, 1902
* _Cyclops echinatus_ Kiefer, 1926
* _Cyclops ecornis_ Tilesius, 1819
* _Cyclops edax_ S. A. Forbes, 1890
* _Cyclops elegans_ Herrick, 1884
* _Cyclops elgonensis_ Kiefer, 1932
* _Cyclops elongatus_ Claus, 1863
* _Cyclops emini_ Mrázek, 1898
* _Cyclops entzii_ Daday, 1885
* _Cyclops euacanthus_ G. O. Sars, 1909
* _Cyclops ewarti_ Brady, 1888
* _Cyclops exiguus_ G. O. Sars, 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_ O. F. Müller, 1776
* _Cyclops fischeri_ Poggenpol, 1874
* _Cyclops flexipes_ Kokubo, 1912
* _Cyclops fluviatilis_ Herrick, 1882
* _Cyclops foliaceus_ (Linnaeus, 1758)
* _Cyclops forbesi_ Herrick, 1895
* _Cyclops formosanus_ Harada, 1931
* _Cyclops fragilis_ Kiefer, 1926
* _Cyclops franciscoloi_ Brian, 1951
* _Cyclops frivaldszkyi_ Daday, 1885
* _Cyclops furcatus_ Baird, 1837
* 叉足劍水蚤 _Cyclops furcifer_ Claus, 1857
* _Cyclops furi_ Kozhova & Pavlov, 1986
* _Cyclops fuscus_ Jurine, 1820
* _Cyclops gauthieri_ Green, 1963
* _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 graeteri_ Chappuis, 1927
* _Cyclops grandis_ Kiefer, 1935
* _Cyclops grandispinifer_ Lindberg, 1940
* _Cyclops gredleri_ Heller, 1871
* _Cyclops gyrinus_ S. A. Forbes, 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_ (G. O. Sars, 1927)
* _Cyclops inopinus_ Kiefer, 1926
* _Cyclops insectus_ S. A. Forbes, 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_ O. F. Müller, 1776
* _Cyclops lacunae_ Lowndes, 1926
* _Cyclops lacustris_ G. O. Sars, 1863
* 拉達克劍水蚤 _Cyclops ladakanus_ Kiefer, 1936
* _Cyclops laevimargo_ G. O. Sars, 1909
* _Cyclops landei_ Mahoon & Zia, 1985
* _Cyclops languidoides_ Lilljeborg, 1901
* _Cyclops languidulus_ Willey, 1925
* _Cyclops languidus_ (G. O. Sars, 1863)
* _Cyclops lascivus_ Poggenpol, 1874
* _Cyclops laticauda_ Templeton, 1836
* _Cyclops latipes_ Lowndes, 1927
* _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_ G. O. Sars, 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_ G. O. Sars, 1863
* _Cyclops macuroides_ Lilljeborg, 1901
* _Cyclops madagascariensis_ Kiefer, 1926
* _Cyclops magniceps_ Lilljeborg, 1853
* _Cyclops magnoctavus_ Cragin, 1883
* 大劍水蚤 _Cyclops magnus_ (Marsh, 1920)
* _Cyclops malayicus_ Kiefer, 1930
* _Cyclops margaretae_ Lindberg, 1938
* _Cyclops margoi_ Daday, 1885
* _Cyclops marinus_ Prestandrea, 1833
* _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_ S. A. Forbes, 1893
* _Cyclops minuticornis_ O. F. Müller, 1785
* _Cyclops minutissimus_ Kiefer, 1933
* _Cyclops minutus_ Claus, 1863
* _Cyclops minutus_ O. F. Müller, 1776
* _Cyclops modestus_ Herrick, 1883
* _Cyclops moghulensis_ Lindberg, 1939
* _Cyclops monacanthus_ Kiefer, 1928
* _Cyclops monardi_ Perret, 1925
* _Cyclops mongoliensis_ Einsle, 1992
* _Cyclops mulleri_ Ferussac, 1806
* _Cyclops muscicola_ Menzel, 1926
* _Cyclops muscicolus_ Lastochkin, 1927
* _Cyclops nanus_ G. O. Sars, 1863
* _Cyclops naviculus_ Say, 1818
* _Cyclops navus_ Herrick, 1882
* _Cyclops nearcticus_ Kiefer, 1934
* _Cyclops necessarius_ Kiefer, 1926
* _Cyclops neglectus_ G. O. Sars, 1909
* _Cyclops neumani_ Pesta, 1927
* _Cyclops neymanae_ Streletskaya, 1990
* _Cyclops niceae_ Mann, 1940
* _Cyclops nigeriae_ Brady, 1910
* _Cyclops nigricauda_ Norman, 1869
* _Cyclops nivalis_ Daday, 1885
* _Cyclops novaezealandiae_ G. M. Thomson, 1879
* _Cyclops nubicus_ Chappuis, 1922
* _Cyclops obesicornis_ Templeton, 1836
* _Cyclops obsoletus_ Koch, 1838
* _Cyclops ochridanus_ Kiefer, 1932
* _Cyclops odessanus_ Shmankevich, 1875
* 長刺劍水蚤 _Cyclops oithonoides_ G. O. Sars, 1863
* _Cyclops oligarthrus_ G. O. Sars, 1909
* _Cyclops operculatus_ Chappuis, 1917
* 東方劍水蚤 _Cyclops orientalis_ Ulyanin, 1875
* _Cyclops ornatus_ Poggenpol, 1874
* _Cyclops ovalis_ Brady, 1872
* _Cyclops pachycomus_ G. O. Sars, 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
* 蔥綠劍水蚤 _Cyclops prasinus_ Fischer, 1860
* _Cyclops prealpinus_ Kiefer, 1939
* _Cyclops procerus_ Herbst, 1955
* _Cyclops productus_ (O. F. Müller, 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_ G. O. Sars, 1909
* _Cyclops reductus_ Chappuis, 1925
* _Cyclops restrictus_ Lindberg, 1948
* _Cyclops ricae_ Monchenko, 1977
* _Cyclops richardi_ Lindberg, 1942
* _Cyclops robustus_ G. O. Sars, 1863
* _Cyclops roseus_ Daday, 1885
* _Cyclops rostratus_ (Philippi, 1843)
* _Cyclops roumaniae_ Cosmovici, 1900
* _Cyclops royi_ Lindberg, 1940
* _Cyclops rubellus_ Lilljeborg, 1901
* _Cyclops rubens_ O. F. Müller, 1785
* _Cyclops salinus_ Brady, 1903
* _Cyclops salmoneus_ (J. C. Fabricius, 1792)
* _Cyclops saltatonius_ (O. F. Müller, 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_ G. O. Sars, 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
* 標誌劍水蚤 _Cyclops signatus_ Koch, 1838
* _Cyclops silesicus_ Schäfer, 1934
* _Cyclops silvestrii_ Brian, 1927
* 長腹劍水蚤 _Cyclops similis_ Templeton, 1836
* _Cyclops simillimus_ Brady, 1907
* 簡劍水蚤 _Cyclops simplex_ Poggenpol, 1874
* _Cyclops skopljensis_ Kiefer, 1932
* _Cyclops smirnovi_ Rylov, 1948
* _Cyclops soli_ Kokubo, 1912
* _Cyclops spartinus_ Ruber, 1966
* 分離劍水蚤 _Cyclops speratus_ Lilljeborg, 1901
* _Cyclops spinifer_ Daday, 1902
* _Cyclops spinulosus_ Claus, 1893
* _Cyclops stagnalis_ Einsle, 1996
* _Cyclops staheli_ Chappuis, 1917
* _Cyclops staphylinus_ Desmarest, 1825
* 英勇劍水蚤 _Cyclops strenuus_ Fischer, 1851
* _Cyclops stroemii_ Baird, 1834
* _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_ G. O. Sars, 1909
* _Cyclops tenuicaudis_ Daday, 1885
* _Cyclops tenuicornis_ Claus, 1857
* _Cyclops tenuipes_ (Philippi, 1843)
* _Cyclops tenuis_ Marsh, 1910
* _Cyclops tenuisaccus_ G. O. Sars, 1927
* _Cyclops tenuissimus_ Herrick, 1883
* _Cyclops teras_ Graeter, 1907
* _Cyclops thomasi_ S. A. Forbes, 1882
* _Cyclops thorace_ (Ström, 1770)
* _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
* 變色劍水蚤 _Cyclops varius_ Lilljeborg, 1901
* _Cyclops venustoides_ Coker, 1934
* _Cyclops venustus_ Norman & T. Scott, 1906
* 春季劍水蚤 _Cyclops vernalis_ Fischer, 1853
* 近鄰劍水蚤 _Cyclops vicinus_ Ulyanin, 1875
* 近鄰劍水蚤 _Cyclops vicinus vicinus_
* 葉片劍水蚤 _Cyclops vicinus lobosus_
* _Cyclops viduus_ Kiefer, 1933
* 文森特劍水蚤 _Cyclops vincentianus_ Brian, 1927
* _Cyclops vinceus_ Shmankevich, 1875
* _Cyclops virescens_ Brady, 1910
* 綠劍水蚤 _Cyclops viridis_ (Jurine, 1820)
* _Cyclops viridosignatus_ E. F. Byrnes, 1909
* _Cyclops vitiensis_ Dana, 1847
* _Cyclops vulgaris_ Koch, 1838
* _Cyclops wigrensis_ Streletskaya, 1988
* _Cyclops zschokkei_ Graeter, 1910

## 流行文化

* 在卡通片海綿寶寶的故事有一個反派角色「皮老闆」，就是以本屬物種為藍本，有兩條觸角和一隻大眼睛。

## 參考文獻

## 外部連結

* Illustration, description - _Cyclops_ （頁面存檔備份，存於網際網路檔案館）