ⓘ Freshwater fish genera ..


Atlantirivulus is a genus of fishes in the family Rivulidae. They are endemic to shallow swamps, creeks, streams and pools in the Atlantic Forest in southeastern Brazil, ranging from Rio de Janeiro to Santa Catarina. Several of the species are highly threatened, while others survive in well-protected reserves. A. janeiroensis was initially feared extinct, but has since been rediscovered in two reserves. Similar to closely related genera such as Anablepsoides, Cynodonichthys, Laimosemion and Melanorivulus, Atlantirivulus are non-annual killifish. They are small fish, no more than 6.5 cm 2.6 ...


Austrolebias is a genus of killifish in the family Rivulidae. These annual killifish live in temporary pools, swamps and streams in the Rio de la Plata, Patos–Mirim and Mamore basins in South America. Most species are small, less than 10 cm 3.9 in total length, but a few reach 15–22 cm 5.9–8.7 in, making them some of the largest killifish only a few Fundulus, Moema and Orestias reach a similar or larger size.


Campellolebias is a genus of killifish in the family Rivulidae from southeast Brazil. They are restricted to seasonal blackwater pools in forests in coastal parts of Santa Catarina and São Paulo states. They are small fish, up to 5 cm 2.0 in total length. Uniquely among killifish, Campellolebias and the closely related Cynopoecilus have internal fertilization. A part of the males anal fin forms a "pseudo-gonopodium" that is used for inseminating the female.


Formosania is a genus of gastromyzontid loaches, most of which are endemic to mainland China. Two species, F. lacustris and F. tengi, are endemic to Taiwan.


Gadopsis is a genus of temperate perches endemic to freshwater habitats in southeastern Australia. The genus was formerly considered to be in a family of its own, Gadopsidae.


Gobiomorphus is a genus of fishes in the family Eleotridae native to New Zealand and Australia. They are typically small, benthic fishes with large, rounded fins and two dorsal fins. Many have an amphidromous lifecycle: the eggs are laid in fresh water, but the fry are dispersed to sea soon after hatching, and grow there for several months before returning to fresh water.



There are currently two recognized species in this genus: Koreocobitis naktongensis I. S. Kim, J. Y. Park & Nalbant, 2000 Koreocobitis rotundicaudata Wakiya & T. Mori, 1929 White nose loach



There are currently five recognized species in this genus: Nimbapanchax jeanpoli Berkenkamp & Etzel, 1979 Jeanpols killi Nimbapanchax viridis Ladiges & Roloff, 1973 Nimbapanchax melanopterygius Sonnenberg & Busch, 2009 Nimbapanchax petersi Sauvage, 1882 Nimbapanchax leucopterygius Sonnenberg & Busch, 2009



There are currently four recognized species in this genus: Paragalaxias dissimilis Regan, 1906 Shannon galaxias Paragalaxias julianus McDowall & Fulton, 1978 Julian galaxias Paragalaxias eleotroides McDowall & Fulton, 1978 Great Lake darter Paragalaxias mesotes McDowall & Fulton, 1978 Arthurs paragalaxias



There are currently four recognized species in this genus: Pronothobranchius chirioi Valdesalici, 2013 Pronothobranchius seymouri Loiselle & Blair, 1972 Pronothobranchius kiyawensis C. G. E. Ahl, 1928 Pronothobranchius gambiensis Svensson, 1933



There are currently three recognized species in this genus: Pseudophallus elcapitanensis Meek & Hildebrand, 1914 Pseudophallus mindii Meek & Hildebrand, 1923 Pseudophallus starksii D. S. Jordan & Culver, 1895

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