Moina is a genus of crustacean

Crustacean

Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...

s within the family Moinidae

Moinidae

Moinidae is a crustacean family within the order Cladocera. Species within this family are widely occurring including the continents of North America and Africa. In newer classifications it is sometimes included in the family Daphniidae....

. The genus was first described by W. Baird in 1850. This genus demonstrates the ability to survive in waters containing high salinity

Salinity

Salinity is the saltiness or dissolved salt content of a body of water. It is a general term used to describe the levels of different salts such as sodium chloride, magnesium and calcium sulfates, and bicarbonates...

 and other impurities

Impurity

Impurities are substances inside a confined amount of liquid, gas, or solid, which differ from the chemical composition of the material or compound.Impurities are either naturally occurring or added during synthesis of a chemical or commercial product...

, including salt pan

Dry lake

Dry lakes are ephemeral lakebeds, or a remnant of an endorheic lake. Such flats consist of fine-grained sediments infused with alkali salts. Dry lakes are also referred to as alkali flats, sabkhas, playas or mud flats...

s. An example of such an extreme habitat is the highly saline Makgadikgadi Pans of Botswana

Botswana

Botswana, officially the Republic of Botswana , is a landlocked country located in Southern Africa. The citizens are referred to as "Batswana" . Formerly the British protectorate of Bechuanaland, Botswana adopted its new name after becoming independent within the Commonwealth on 30 September 1966...

, which supports the species Moina belli

Moina belli

Moina belli is a species of crustaceans within the family Moinidae, described by Robert Gurney in 1904. This species lives in waters containing high salinity and other impurities, such as the Makgadikgadi Pans region of Botswana, where the salinity is extremely high....

prolifically.

Species

Moina contains the following species:

• Moina affinis Birge, 1893
• Moina australiensis Sars, 1896
• Moina belli
  Moina belli
  Moina belli is a species of crustaceans within the family Moinidae, described by Robert Gurney in 1904. This species lives in waters containing high salinity and other impurities, such as the Makgadikgadi Pans region of Botswana, where the salinity is extremely high....
  
  Gurney, 1904
• Moina brachiata (Jurine, 1820)
• Moina brachycephala Goulden, 1968
• Moina flexuosa Sars, 1897
• Moina hartwigi Welter, 1898
• Moina hutchinsoni Brehm, 1937
• Moina macrocopa (Straus, 1820)
• Moina micrura Kurz, 1874
• Moina minuta Hansen, 1899
• Moina mongolica Daday, 1901
• Moina rectirostris (Leydig, 1860)
• Moina reticulata (Daday, 1905)
• Moina salina Daday, 1888
• Moina tenuicornis Sars, 1896
• Moina weismanni Ishikawa, 1897
• Moina wierzejskii Richard, 1895