Nothobranchius rachovii male.jpg
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''Nothobranchius'' is a
genus 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 nom ...
of small, freshwater
killifish A killifish is any of various oviparous (egg-laying) cyprinodontiform fish (including families Aplocheilidae, Cyprinodontidae, Fundulidae, Profundulidae and Valenciidae). All together, there are 1,270 species of killifish, the biggest family ...
, classified in either the family
Nothobranchiidae Nothobranchiidae are a family of bony fishes containing roughly 300 species, also known as African rivulines. They are small killifish, usually measuring about . They are limited to Africa, living in fresh water but being also somewhat salt-tol ...
van der Laan, R., Eschmeyer, W.N. & Fricke, R. (2014)
Family-group names of Recent fishes.
''Zootaxa, 3882 (2): 1–230.''
or a more inclusive
Aplocheilidae Aplocheilidae, the Asian killifishes or Asian rivulines, is a family of fish in the order Cyprinodontiformes found in Asia. Some authorities use this family-group name, which is well-established, for a single lumped aplocheiloid family as it giv ...
Costa, W.J.E.M. (2016)
Comparative morphology and classification of South American cynopoeciline killifishes (Cyprinodontiformes: Aplocheilidae), with notes on family-group names used for aplocheiloids.
''Vertebrate Zoology, 66 (2): 125-140.''
in the order
Cyprinodontiformes Cyprinodontiformes is an order of ray-finned fish, comprising mostly small, freshwater fish. Many popular aquarium fish, such as killifish and live-bearers, are included. They are closely related to the Atheriniformes and are occasionally inc ...
. There are many species: as of 2018 there are more than 70 species, many with very small distributions. They are primarily native to East Africa from Sudan to northern
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...
, but half a dozen species are found in the upper
Congo River Basin The Congo River ( kg, Nzâdi Kôngo, french: Fleuve Congo, pt, Rio Congo), formerly also known as the Zaire River, is the second longest river in Africa, shorter only than the Nile, as well as the second largest river in the world by discharge ...
and two species ('' N. rubroreticulatus'' and '' N. thierryi'') are from west-central Africa; the greatest
species richness Species richness is the number of different species represented in an ecological community, landscape or region. Species richness is simply a count of species, and it does not take into account the abundances of the species or their relative ab ...
is in
Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...
. ''Nothobranchius'' typically inhabit ephemeral pools that are filled only during the monsoon season, and show extreme life-history adaptations to survive the dry season. When their habitats dry up, the adult fish die and the eggs survive encased in the clay during the dry season. The embryos survive the dry season by entering
diapause In animal dormancy, diapause is the delay in development in response to regular and recurring periods of adverse environmental conditions.Tauber, M.J., Tauber, C.A., Masaki, S. (1986) ''Seasonal Adaptations of Insects''. Oxford University Press I ...
, facilitated by their specialized eggs that have a very hard chorion and are resistant to desiccation and hypoxia.Alexander Dorn, Zuzana Musilová, Matthias Platzer, Kathrin Reichwald and Alessandro Celler (2014
The strange case of East African annual fishes: aridification correlates with diversification for a savannah aquatic group?
''BMC Evolutionary Biology'' 14:210. DOI: 10.1186/s12862-014-0210-3
These species reach maturity very quickly once diapause is broken and have a very short life span; one species, '' Nothobranchius furzeri'', reaches maturity in 17 days and seldom lives beyond 6 months.


Etymology

From Greek νοθοσ / ''nothos'': false, spurious, and βράγχια / ''bránchia'':
gill A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...
.


Species

There are currently 76 recognized species in this genus: * '' Nothobranchius albimarginatus'' Watters, Wildekamp & B. J. Cooper, 1998 * '' Nothobranchius annectens'' Watters, Wildekamp & B. J. Cooper, 1998 * '' Nothobranchius bellemansi'' Valdesalici, 2014Valdesalici, S. (2014): ''Nothobranchius bellemansi'' and ''Nothobranchius occultus'' (Cyprinodontiformes: Nothobranchiidae) two new annual killifish from Sudan. ''Killi-Data Series, 2014: 4-19.'' * '' Nothobranchius bojiensis'' Wildekamp & R. Haas, 1992 (Boji Plains nothobranchius) * '' Nothobranchius boklundi'' Valdesalici, 2010 * '' Nothobranchius brieni''
Poll Poll, polled, or polling may refer to: Figurative head counts * Poll, a formal election ** Election verification exit poll, a survey taken to verify election counts ** Polling, voting to make decisions or determine opinions ** Polling places o ...
, 1938
* '' Nothobranchius capriviensis'' Watters, Wildekamp & Shidlovskiy, 2015 (Caprivi nothobranchius)Watters, B.R., Wildekamp, R.H. & Shidlovskiy, K.M. (2015): Description and biogeography of ''Nothobranchius capriviensis'', a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). ''Journal of the American Killifish Association, 47 (4-6): 97-133.'' * '' Nothobranchius cardinalis'' Watters, B. J. Cooper & Wildekamp, 2008 (Cardinal nothobranchius) * '' Nothobranchius chochamandai''
Nagy Nagy () is the most common Hungarian surname, meaning "great". The surname is also common among ethnic Hungarians in the northern Serbian province of Vojvodina, where it is spelled Nađ () and may be transliterated in other languages as Nadj. ...
, 2014
Nagy, B. (2014): ''Nothobranchius chochamandai'', a new species of annual killifish from the Luapula drainage, Democratic Republic of Congo (Cyprinodontiformes: Nothobranchiidae). ''Ichthyological Exploration of Freshwaters, 25 (2): 167-183.'' * '' Nothobranchius ditte''
Nagy Nagy () is the most common Hungarian surname, meaning "great". The surname is also common among ethnic Hungarians in the northern Serbian province of Vojvodina, where it is spelled Nađ () and may be transliterated in other languages as Nadj. ...
, 2018
* '' Nothobranchius eggersi'' Seegers, 1982 * '' Nothobranchius elongatus'' Wildekamp, 1982 (Elongate nothobranchius) *'' Nothobranchius elucens'' * '' Nothobranchius fasciatus'' Wildekamp & R. Haas, 1992 * '' Nothobranchius flagrans''
Nagy Nagy () is the most common Hungarian surname, meaning "great". The surname is also common among ethnic Hungarians in the northern Serbian province of Vojvodina, where it is spelled Nađ () and may be transliterated in other languages as Nadj. ...
, 2014
Nagy, B. (2014): ''Nothobranchius flagrans'', a new species of annual killifish from the Lufira drainage, Democratic Republic of Congo (Cyprinodontiformes: Nothobranchiidae). ''Ichthyological Exploration of Freshwaters, 25 (3): 259-276.'' * '' Nothobranchius flammicomantis'' Wildekamp, Watters & Sainthouse, 1998 * '' Nothobranchius foerschi'' Wildekamp & Berkenkamp, 1979 * '' Nothobranchius furzeri'' R. A. Jubb, 1971 (Turquoise killifish) * '' Nothobranchius fuscotaeniatus'' Seegers, 1997 * '' Nothobranchius geminus'' Wildekamp, Watters & Sainthouse, 2002 * '' Nothobranchius guentheri'' ( Pfeffer, 1893) (Red-tail nothobranchius) * '' Nothobranchius hassoni'' Valdesalici & Wildekamp, 2004 * '' Nothobranchius hengstleri'' Valdesalici, 2007 * '' Nothobranchius insularis'' W. J. E. M. Costa, 2017Costa, W.J.E.M. (2017)
Redescription of ''Nothobranchius lucius'' and description of a new species from Mafia Island, eastern Tanzania (Cyprinodontiformes, Aplocheilidae).
''Zoosystematics and Evolution, 93 (1): 35-44.''
* '' Nothobranchius interruptus'' Wildekamp & Berkenkamp, 1979 (Kikambala nothobranchius) * '' Nothobranchius ivanovae'' Valdesalici, 2012Valdesalici, S. (2012)
''Nothobranchius kardashevi'' and ''Nothobranchius ivanovae'' (Cyprinodontiformes: Nothobranchiidae): two new annual killifishes from the Katuma River drainage, western Tanzania.
''aqua, International Journal of Ichthyology, 18 (4): 191-198.''
* '' Nothobranchius janpapi'' Wildekamp, 1977 * '' Nothobranchius jubbi'' Wildekamp & Berkenkamp, 1979 * '' Nothobranchius kadleci'' Reichard, 2010 * '' Nothobranchius kafuensis'' Wildekamp & Rosenstock, 1989 (Kafue killifish) * '' Nothobranchius kardashevi'' Valdesalici, 2012 * '' Nothobranchius kilomberoensis'' Wildekamp, Watters & Sainthouse, 2002 * '' Nothobranchius kirki'' R. A. Jubb, 1969 (Red-fin nothobranchius) * '' Nothobranchius korthausae'' Meinken, 1973 * '' Nothobranchius krammeri'' Valdesalici & Hengstler, 2008 * '' Nothobranchius krysanovi'' Shidlovskiy, Watters & Wildekamp, 2010 * '' Nothobranchius kuhntae'' ( Ahl, 1926) (Beira killifish) * '' Nothobranchius kwalensis'' W. J. E. M. Costa, 2019 * '' Nothobranchius lourensi'' Wildekamp, 1977 * '' Nothobranchius lucius'' Wildekamp, Shidlovskiy & Watters, 2009 * '' Nothobranchius luekei'' Seegers, 1984 * '' Nothobranchius makondorum'' Wildekamp, Shidlovskiy & Watters, 2009 * '' Nothobranchius malaissei'' Wildekamp, 1978 * '' Nothobranchius melanospilus'' ( Pfeffer, 1896) (Black-spotted nothobranchius) * '' Nothobranchius microlepis'' ( Vinciguerra, 1897) (Small-scaled nothobranchius) * '' Nothobranchius milvertzi''
Nagy Nagy () is the most common Hungarian surname, meaning "great". The surname is also common among ethnic Hungarians in the northern Serbian province of Vojvodina, where it is spelled Nađ () and may be transliterated in other languages as Nadj. ...
, 2014
Nagy, B. (2014): ''Nothobranchius milvertzi'', a new species of killifish from the Lushiba Marsh in the Lake Mweru drainage, Zambia (Teleostei: Cyprinodontiformes: Nothobranchiidae). ''Ichthyological Exploration of Freshwaters, 24 (4): 347-360.'' * '' Nothobranchius neumanni'' ( Hilgendorf, 1905) * '' Nothobranchius niassa'' Valdesalici, I. R. Bills, Dorn, Reichwald & Cellerino, 2012Valdesalici, S., Bills, R., Dorn, A., Reichwald, K. & Cellerino, A. (2012): ''Nothobranchius niassa'' (Cyprinodontiformes: Nothobranchiidae), a new species of annual killifish from northern Mozambique. ''Ichthyological Exploration of Freshwaters, 23 (1): 19-28.'' * '' Nothobranchius nubaensis'' Valdesalici, Bellemans, Kardashev & Golubtsov, 2009 * '' Nothobranchius occultus'' Valdesalici, 2014 * '' Nothobranchius ocellatus'' ( Seegers, 1985) * '' Nothobranchius oestergaardi'' Valdesalici & G. Amato, 2011 * '' Nothobranchius orthonotus'' ( W. K. H. Peters, 1844) (Spotted killifish) * '' Nothobranchius palmqvisti'' ( Lönnberg, 1907) * '' Nothobranchius patrizii'' ( Vinciguerra, 1927) (Blue nothobranchius) * '' Nothobranchius pienaari'' Shidlovskiy, Watters & Wildekamp, 2010 * '' Nothobranchius polli'' Wildekamp, 1978 * '' Nothobranchius prognathus'' W. J. E. M. Costa, 2019 * ''
Nothobranchius rachovii ''Nothobranchius rachovii'', or the bluefin notho, is a species of freshwater annual killifish from Mozambique. It can grow up to 6 cm (2.4").Mongabay Rainbow Nothobranch Accessed 23 January 2010. It is popular among killifish enthusiasts, ...
'' Ahl, 1926 (Blue-fin nothobranchius) * '' Nothobranchius robustus'' Ahl, 1935 (Red victoria nothobranchius) * '' Nothobranchius rosenstocki'' Valdesalici & Wildekamp, 2005 * '' Nothobranchius rubripinnis'' Seegers, 1986 * '' Nothobranchius rubroreticulatus'' Blache & Miton, 1960 * '' Nothobranchius ruudwildekampi'' W. J. E. M. Costa, 2009 * '' Nothobranchius sagittae'' Wildekamp, Watters & Shidlovskiy, 2014Wildekamp, R.H., Watters, B.R. & Shidlovskiy, K.M. (2014): Review of the ''Nothobranchius neumanni'' species group with descriptions of three new species from Tanzania (Cyprinodontiformes: Nothobranchiidae). ''Journal of the American Killifish Association, 47 (1): 2-30.'' * '' Nothobranchius sainthousei''
Nagy Nagy () is the most common Hungarian surname, meaning "great". The surname is also common among ethnic Hungarians in the northern Serbian province of Vojvodina, where it is spelled Nađ () and may be transliterated in other languages as Nadj. ...
, Cotterill & Bellstedt, 2016
Nagy, B., Cotterill, F.P.D. & Bellstedt, D.U. (2016)
''Nothobranchius sainthousei'', a new species of annual killifish from the Luapula River drainage in northern Zambia (Teleostei: Cyprinodontiformes).
''Ichthyological Exploration of Freshwaters, 27 (3): 233-254.''
* '' Nothobranchius seegersi'' Valdesalici & Kardashev, 2011 * '' Nothobranchius serengetiensis'' Wildekamp, Watters & Shidlovskiy, 2014 * '' Nothobranchius steinforti'' Wildekamp, 1977 * '' Nothobranchius streltsovi'' Valdesalici ( sv), 2016Valdesalici, S. (2016)
''Nothobranchius streltsovi'', a new species of annual killifish with two male colour morphs from the Malagarasi drainage, central Tanzania (Teleostei: Cyprinodontiformes: Nothobranchiidae).
''Ichthyological Exploration of Freshwaters, 27 (2): 153-161.''
* '' Nothobranchius symoensi'' Wildekamp, 1978 * '' Nothobranchius taeniopygus'' Hilgendorf, 1891 (Striped nothobranchius) * '' Nothobranchius taiti''
Nagy Nagy () is the most common Hungarian surname, meaning "great". The surname is also common among ethnic Hungarians in the northern Serbian province of Vojvodina, where it is spelled Nađ () and may be transliterated in other languages as Nadj. ...
, 2019
* '' Nothobranchius torgashevi'' Valdesalici, 2015Valdesalici, S. (2015): ''Nothobranchius torgashevi'' (Cyprinodontiformes: Nothobranchiidae) a new species of annual killifish with two male colour morphs from the Lake Eyasi Basin, Central Tanzania. ''Killi-Data Series, 2015: 17-30.'' * '' Nothobranchius ugandensis'' Wildekamp, 1994 (Uganda nothobranchius) * '' Nothobranchius usanguensis'' Wildekamp, Watters & Shidlovskiy, 2014 * '' Nothobranchius virgatus''
Chambers Chambers may refer to: Places Canada: *Chambers Township, Ontario United States: *Chambers County, Alabama * Chambers, Arizona, an unincorporated community in Apache County * Chambers, Nebraska * Chambers, West Virginia * Chambers Township, Hol ...
, 1984
* '' Nothobranchius vosseleri'' Ahl, 1924 (Pangani nothobranchius) * '' Nothobranchius wattersi'' Ng'oma, Valdesalici, Reichwald & Cellerino, 2013Ng'oma, E., Valdesalici, S., Reichwald, K. & Cellerino, A. (2013): Genetic and morphological studies of ''Nothobranchius'' (Cyprinodontiformes) from Malawi with description of ''Nothobranchius wattersi'' sp. nov. ''Journal of Fish Biology, 82 (1): 165–188.'' * '' Nothobranchius willerti'' Wildekamp, 1992 (Mnanzini nothobranchius)


See also

* Nothobranchius sp. nov. 'Lake Victoria',
Undescribed taxon In taxonomy, an undescribed taxon is a taxon (for example, a species) that has been discovered, but not yet formally described and named. The various Nomenclature Codes specify the requirements for a new taxon to be validly described and named. ...


References

{{Taxonbar, from=Q144094 Nothobranchiidae Freshwater fish genera Taxa named by Wilhelm Peters