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 basin, but there are also species east and north of this system, and west as far as the Tocantins River basin.[3] Many species have rather small distributions and some are highly threatened.[3]
| Cynolebias | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Rivulidae |
| Genus: | Cynolebias Steindachner, 1876[1] |
| Type species | |
| Cynolebias porosus Steindachner, 1876[2]
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| Species | |
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See text | |
They are small thickset fish, up to 5–15 cm (2.0–5.9 in) in total length depending on the exact species.[4]
Species edit
The currently recognized species in this genus are:[3][4]
- Cynolebias albipunctatus W. J. E. M. Costa & G. C. Brasil, 1991
- Cynolebias altus W. J. E. M. Costa, 2001
- Cynolebias attenuatus W. J. E. M. Costa, 2001
- Cynolebias gibbus W. J. E. M. Costa, 2001
- Cynolebias gilbertoi W. J. E. M. Costa, 1998
- Cynolebias griseus W. J. E. M. Costa, Lacerda & G. C. Brasil, 1990
- Cynolebias itapicuruensis W. J. E. M. Costa, 2001
- Cynolebias leptocephalus W. J. E. M. Costa & G. C. Brasil, 1993
- Cynolebias microphthalmus W. J. E. M. Costa & G. C. Brasil, 1995
- Cynolebias obscurus W. J. E. M. Costa, 2014
- Cynolebias ochraceus W. J. E. M. Costa, 2014
- Cynolebias oticus W. J. E. M. Costa, 2014
- Cynolebias paraguassuensis W. J. E. M. Costa, Suzart & D. T. B. Nielsen, 2007
- Cynolebias parietalis 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, 1876
- Cynolebias rectiventer W. J. E. M. Costa, 2014
- Cynolebias roseus W. J. E. M. Costa, 2014
- Cynolebias vazabarrisensis W. J. E. M. Costa, 2001
References edit
- ^ "Cynolebias". Integrated Taxonomic Information System. Retrieved April 4, 2010.
- ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Cynolebias". Catalog of Fishes. California Academy of Sciences. Retrieved 11 September 2019.
- ^ a b c 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.
- ^ a b Froese, Rainer and Pauly, Daniel, eds. (2018). Species of Cynolebias in FishBase. November 2018 version.
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