''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is in the

São Francisco River The São Francisco River (, ) is a large river in Brazil. With a length of , it is the longest river that runs entirely in Brazilian territory, and the fourth longest in South America and overall in Brazil (after the Amazon, the Paraná and t ...

basin, but there are also species east and north of this system, and west as far as the Tocantins River basin.Costa, W. J. E. M. (2014): Six new species of seasonal killifishes of the genus Cynolebias from the São Francisco river basin, Brazilian Caatinga, with notes on C. porosus (Cyprinodontiformes: Rivulidae). ''Ichthyological Exploration of Freshwaters, 25 (1): 79-96''. Many species have rather small distributions and some are highly threatened. They are small thickset fish, up to in total length depending on the exact species.

Species

The currently recognized species in this genus are: * ''

Cynolebias albipunctatus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness i ...

'' W. J. E. M. Costa & G. C. Brasil, 1991 * '' Cynolebias altus'' W. J. E. M. Costa, 2001 * ''

Cynolebias attenuatus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa, 2001 * ''

Cynolebias gibbus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness i ...

'' W. J. E. M. Costa, 2001 * ''

Cynolebias gilbertoi ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness i ...

'' W. J. E. M. Costa, 1998 * ''

Cynolebias griseus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness i ...

'' W. J. E. M. Costa, Lacerda & G. C. Brasil, 1990 * ''

Cynolebias itapicuruensis ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa, 2001 * ''

Cynolebias leptocephalus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa & G. C. Brasil, 1993 * ''

Cynolebias microphthalmus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa & G. C. Brasil, 1995 * ''

Cynolebias obscurus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa, 2014 * ''

Cynolebias ochraceus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa, 2014 * ''

Cynolebias oticus ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa, 2014 * ''

Cynolebias paraguassuensis ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is i ...

'' W. J. E. M. Costa, Suzart & D. T. B. Nielsen, 2007 * ''

Cynolebias parietalis ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness i ...

'' W. J. E. M. Costa, 2014 * '' Cynolebias parnaibensis'' W. J. E. M. Costa, T. P. A. Ramos, Alexandre & R. T. C. Ramos, 2010 * '' Cynolebias perforatus'' W. J. E. M. Costa & G. C. Brasil, 1991 * '' Cynolebias porosus''

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 ...

, 1876 * '' Cynolebias rectiventer'' W. J. E. M. Costa, 2014 * '' Cynolebias roseus'' W. J. E. M. Costa, 2014 * ''

Cynolebias vazabarrisensis ''Cynolebias'' is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness i ...

'' W. J. E. M. Costa, 2001

References

Rivulidae Freshwater fish genera Taxa named by Franz Steindachner Taxonomy articles created by Polbot {{Cyprinodontiformes-stub