''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), to

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

(in the northwest and the Magdalena River basin).Vermeulen, F.B.M. (2013): Four new species of ''Rivulus'' Poey, 1860, subgenus ''Cynodonichthys'' Meek, 1904 (Teleostei: Cyprinodontiformes: Rivulidae) from the Magdalena River Basin, Central Colombia, including notes on ''Rivulus (Cynodonichthys) elegans'' Steindachner, 1880. ''Killi-Data Series, 2013: 42-63.'' They are non-annual killifish (similar to relatives such as '' Anablepsoides'', '' Atlantirivulus'', ''

Laimosemion ''Laimosemion'' is a genus of fish in the family Rivulidae from the Amazon basin and basins in the Guiana Shield in tropical South America. They mostly inhabit small streams, creeks, swamps and pools in lowlands, but locally occur to an altitude ...

'' and ''

Melanorivulus ''Melanorivulus'' is a genus of South American freshwater fish in the family Rivulidae. Most species are endemic to the Río de la Plata, eastern Amazon (west to Tapajós basin), Tocantins– Araguaia and São Francisco basins in Brazil, but a f ...

'') and inhabit small forest streams from the lowlands to an altitude of . They are small fish, up to in total length depending on the exact species.

Species

Until 2011, ''Cynodonichthys'' were included in ''

Rivulus ''Rivulus'' is a genus of small freshwater fish in the Cyprinodontiformes family Rivulidae. It was traditionally considered to be the largest genus in its family; however, the genus's size is currently in dispute. Wilson J. E. Costa split this ge ...

'', and some prefer to maintain them in that genus. If recognized as a valid genus, there are currently 32 species in ''Cynodonichthys'': * ''

Cynodonichthys azurescens ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), to Col ...

'' (

Vermeulen Vermeulen is a Dutch toponymic or occupational surname, meaning "from the (wind/water) mill" (modern Dutch ''molen''). It is a contraction of the surname Van der Meulen. In the Netherlands 20,633 people carried the name in 2007, making it the 30th ...

, 2013) * ''

Cynodonichthys birkhahni ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), to Col ...

'' ( Berkenkamp & Etzel, 1992) * ''

Cynodonichthys boehlkei ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), to Col ...

'' ( Huber &

Fels Fels is a surname. Notable people with the surname include: *Allan Fels AO (born 1942), Australian economist, lawyer and public servant *Anthony Fels (born 1964), former Australian politician *Edmond de Fels (1858–1951), French diplomat, writer ...

, 1985) * ''

Cynodonichthys brunneus ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), to Col ...

'' ( Meek & Hildebrand, 1913) * ''

Cynodonichthys chucunaque ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), to Col ...

'' ( Breder, 1925) * ''

Cynodonichthys degreefi ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), to Col ...

'' ( Collier, 2016)Collier, G.E. (2016): The ''Rivulus'' of Guatemala: ''Rivulus tenuis'' Meek, 1904, ''Rivulus godmani'' Regan, 1907 and ''Rivulus degreefi'' sp. nov. ''Journal of the American Killifish Association, 49 (2): 34-47.'' * ''

Cynodonichthys elegans ''Cynodonichthys elegans'' is a species of killifish from the family Rivulidae which is found in temporary pools in the Cauca River basin and in the San Juan River in the Chocó Department in Colombia. See also * List of fishes in the Magdal ...

'' (

Steindachner Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner describ ...

, 1880) * '' Cynodonichthys frommi'' ( Berkenkamp & Etzel, 1993) * '' Cynodonichthys fuscolineatus'' ( W. A. Bussing, 1980) * '' Cynodonichthys glaucus'' ( W. A. Bussing, 1980) * '' Cynodonichthys godmani'' (

Regan The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri'' ...

, 1907) * '' Cynodonichthys hendrichsi'' (

Álvarez Álvarez or Álvares may refer to: People *Álvarez (surname), Spanish surname Places *Alvares (river), a river in northern Spain * Alvares (ski resort), in Iran *Alvares, Iran * Alvares, Portugal *Álvarez, Santa Fe, a town in the province of Sa ...

& Carranza, 1952) * '' Cynodonichthys hildebrandi'' ( G. S. Myers, 1927) * '' Cynodonichthys isthmensis'' ( Garman, 1895) * '' Cynodonichthys kuelpmanni'' ( Berkenkamp & Etzel, 1993) * '' Cynodonichthys leucurus'' ( Fowler, 1944) * '' Cynodonichthys magdalenae'' ( C. H. Eigenmann & Henn, 1916) * '' Cynodonichthys monikae'' ( Berkenkamp & Etzel, 1995) * '' Cynodonichthys montium'' ( Hildebrand, 1938) * '' Cynodonichthys myersi'' ( C. L. Hubbs, 1936) * ''

Cynodonichthys pacificus ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), ...

'' ( Huber, 1992) * '' Cynodonichthys pivijay'' (

, 2013) * '' Cynodonichthys ribesrubrum'' (

, 2013) * ''

Cynodonichthys rubripunctatus ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), ...

'' ( W. A. Bussing, 1980) * '' Cynodonichthys siegfriedi'' ( W. A. Bussing, 1980) * '' Cynodonichthys sucubti'' ( Breder, 1925) * ''

Cynodonichthys tenuis ''Cynodonichthys'' is a genus of freshwater killifish in the family Rivulidae. They are found in Middle America, ranging from southern Mexico (north to Oaxaca and the Yucatán Peninsula), through Central America (where most species live), ...

'' Meek, 1904 * '' Cynodonichthys uroflammeus'' ( W. A. Bussing, 1980) * '' Cynodonichthys villwocki'' ( Berkenkamp & Etzel, 1997) * '' Cynodonichthys wassmanni'' ( Berkenkamp & Etzel, 1999) * '' Cynodonichthys weberi'' ( Huber, 1992) * '' Cynodonichthys xi'' (

, 2013)

References

Rivulidae Freshwater fish genera Taxa named by Seth Eugene Meek {{Cyprinodontiformes-stub