''Cyclops'' is one of the most common

genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...

freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...

copepods, comprising over 400

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

. Together with other similar-sized non-copepod fresh-water

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...

s, especially

cladocera The Diplostraca or Cladocera, commonly known as water fleas, are a superorder of small crustaceans that feed on microscopic chunks of organic matter (excluding some predatory forms). Over 1000 species have been recognised so far, with many more ...

, they are commonly called ''water fleas''. The name ''Cyclops'' comes from the

Cyclops In Greek mythology and later Roman mythology, the Cyclopes ( ; el, Κύκλωπες, ''Kýklōpes'', "Circle-eyes" or "Round-eyes"; singular Cyclops ; , ''Kýklōps'') are giant one-eyed creatures. Three groups of Cyclopes can be distinguish ...

Greek mythology A major branch of classical mythology, Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of Ancient Greek folklore. These stories concern the Cosmogony, origin and Cosmology#Metaphysical co ...

, as they have a single large eye; in ''Cyclops'', the eye may be either red or black. Nauplius larva of a cyclops copepod

Anatomy

''Cyclops'' individuals may range from ½–5 mm long and are clearly divided into two sections. The broadly oval front section comprises the head and the first five thoracic segments. The hind part is considerably slimmer and is made up of the sixth thoracic segment and the four legless pleonic segments. Two caudal appendages project from the rear. Although they may be difficult to observe, ''Cyclops'' has 5 pairs of legs. The long first antennae, 2 in number, are used by the males for gripping the females during mating. Afterwards, the female carries the

eggs Humans and human ancestors have scavenged and eaten animal eggs for millions of years. Humans in Southeast Asia had domesticated chickens and harvested their eggs for food by 1,500 BCE. The most widely consumed eggs are those of fowl, especial ...

in two small sacs on her body. The larvae, or

nauplii Nauplius, Nauplia or Nauplios , may refer to : Greece-related * Nauplius (mythology), in Greek mythology, the son of Poseidon and Amymone, the father of Palamedes, and also the name of an Argonaut * Nauplia Nafplio ( ell, Ναύπλιο) is a ...

, are free-swimming and unsegmented.

Habitat

''Cyclops'' has a

cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext ...

in fresh water, but is less frequent in

brackish water Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estua ...

. It lives along the plant-covered banks of stagnant and slow-flowing bodies of water, where it feeds on small fragments of plant material, animals (such as

nematodes The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broa ...

), or carrion. It swims with characteristic jerky movements. ''Cyclops'' has the capacity to survive unsuitable conditions by forming a cloak of slime. Average lifespan is about 3 months.

Public health importance

Cyclops is

intermediate host In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasitic, a mutualistic, or a commensalist ''guest'' (symbiont). The guest is typically provided with nourishment and shelter. Examples include a ...

dracunculiasis Dracunculiasis, also called Guinea-worm disease, is a parasitic infection by the Guinea worm, ''Dracunculus medinensis''. A person becomes infected by drinking water containing water fleas infected with guinea worm larvae. The worms penetrate t ...

(guinea-worm disease) and fish tapeworm (''

Diphyllobothrium latum ''Diphyllobothrium'' is a genus of tapeworms which can cause diphyllobothriasis in humans through consumption of raw or undercooked fish. The principal species causing diphyllobothriasis is ''D. latum'', known as the broad or fish tapeworm, or b ...

'') infection. This disease can be passed to humans through drinking infected water.

Dracunculiasis Dracunculiasis, also called Guinea-worm disease, is a parasitic infection by the Guinea worm, ''Dracunculus medinensis''. A person becomes infected by drinking water containing water fleas infected with guinea worm larvae. The worms penetrate t ...

will rarely cause death but is a weakening disease.

Control methods

Cyclops can be controlled using physical, chemical, biological and engineering methods.

Physical

Straining of water through piece of fine cloth is sufficient to remove ''Cyclops''. It can also be killed by boiling water, as it is easily killed by heat at 60 °C.

Chemical

Chlorine Chlorine is a chemical element with the Symbol (chemistry), symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate betwee ...

in strength of 22 ppm destroys ''Cyclops'' in 2 hours; although this concentration of chlorine gives bad odour and taste to water. Excess chlorine can be removed with

Sodium thiosulfate Sodium thiosulfate (sodium thiosulphate) is an inorganic compound with the formula . Typically it is available as the white or colorless pentahydrate, . The solid is an efflorescent (loses water readily) crystalline substance that dissolves well i ...

Calcium hydroxide Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca( OH)2. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed or slaked with water. It has m ...

at dosage of 4 gram per gallon of water can be used.

Temefos Temefos or temephos (trade name Abate) is an organophosphate larvicide used to treat water infested with disease-carrying insects including mosquitoes, midges, and black fly larvae. As with other organophosphates, temephos affects the central n ...

kills cyclops at concentration of 1 mg/litre.

Biological

Small fish like

barbel Barbel may refer to: *Barbel (anatomy), a whisker-like organ near the mouth found in some fish (notably catfish, loaches and cyprinids) and turtles *Barbel (fish), a common name for certain species of fish **''Barbus barbus'', a species of cyprinid ...

and ''

Gambusia ''Gambusia'' is a large genus of viviparous fish in the family Poeciliidae (order Cyprinodontiformes). ''Gambusia'' contains over 40 species, most of which are principally found in freshwater habitats, though some species may also be found in b ...

'' feed on ''Cyclops''. This type of predation was used in Indian state of

Karnataka Karnataka (; ISO: , , also known as Karunāḍu) is a state in the southwestern region of India. It was formed on 1 November 1956, with the passage of the States Reorganisation Act. Originally known as Mysore State , it was renamed ''Karnat ...

to eradicate

Engineering

Provision of drinking water through

piping Within industry, piping is a system of pipes used to convey fluids (liquids and gases) from one location to another. The engineering discipline of piping design studies the efficient transport of fluid. Industrial process piping (and accompan ...

water supply, use of

tubewell A tube well is a type of water well in which a long, -wide, stainless steel tube or pipe is bored underground. The lower end is fitted with a strainer, and a pump lifts water for irrigation. The required depth of the well depends on the dep ...

s and abolition of

stepwell Stepwells (also known as vavs or baori) are wells or ponds with a long corridor of steps that descend to the water level. Stepwells played a significant role in defining subterranean architecture in western India from 7th to 19th century. So ...

s are effective measures on community level.

Species

*'' 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'' G. O. Sars, 1863 *'' Cyclops africanus'' Bourne, 1893 *'' Cyclops agilis'' Koch, 1838 *'' Cyclops agiloides'' G. O. Sars, 1909 *'' Cyclops alajensis'' Ulyanin, 1874 *'' Cyclops albicans'' G. W. Smith, 1909 *'' 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 *'' Cyclops australis'' King, 1855 *'' Cyclops baicalensis'' Vassilieva, 1950 *'' Cyclops bathybius'' Daday, 1896 *'' Cyclops bicolor'' G. O. Sars, 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'' (O. F. Müller, 1776) *'' Cyclops brasiliensis'' Dana, 1849 *'' Cyclops brehmi'' (Kiefer, 1927) *'' Cyclops brevicaudatus'' Claus, 1857 *'' Cyclops brevicornis'' Baird, 1835 *'' Cyclops brevicornis'' Claus, 1857 *'' Cyclops brevipes'' Brady, 1910 *'' Cyclops brevisetosus'' Daday, 1885 *'' 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 *'' 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 *'' 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 *'' 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 *'' Cyclops oithonoides'' G. O. Sars, 1863 *'' Cyclops oligarthrus'' G. O. Sars, 1909 *'' Cyclops operculatus'' Chappuis, 1917 *'' 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 *'' 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 *'' 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 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 *'' Cyclops varius'' Lilljeborg, 1901 *'' Cyclops venustoides'' Coker, 1934 *'' Cyclops venustus'' Norman & T. Scott, 1906 *''

Cyclops vernalis In Greek mythology and later Roman mythology, the Cyclopes ( ; el, Κύκλωπες, ''Kýklōpes'', "Circle-eyes" or "Round-eyes"; singular Cyclops ; , ''Kýklōps'') are giant one-eyed creatures. Three groups of Cyclopes can be distinguish ...

'' 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'' E. F. Byrnes, 1909 *'' Cyclops vitiensis'' Dana, 1847 *'' Cyclops vulgaris'' Koch, 1838 *'' Cyclops wigrensis'' Streletskaya, 1988 *'' Cyclops zschokkei'' Graeter, 1910

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External links

Illustration, description – ''Cyclops''
{{DEFAULTSORT:Cyclops (crustacean) Cyclopidae Cyclopoida genera Freshwater crustaceans