Neofundulus

Neofundulus is a genus of fish in the family Rivulidae. These annual killifish are endemic to the Paraguay, Guaporé, Mamoré and São Francisco basins in Argentina, Bolivia, Brazil and Paraguay.^[2][3] They inhabit temporary waters, such as swamps or ponds, that typically are located in open habitats like grassland. Once the water disappears, the adults die, but the eggs that have been laid in the bottom remain, only hatching after several months when the water returns.^[3][4]

Neofundulus
Neofundulus paraguayensis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cyprinodontiformes
Family:	Rivulidae
Genus:	Neofundulus G. S. Myers, 1924
Type species
Fundulus paraguayensis C. H. Eigenmann & C. H. Kennedy, 1903[1]

They are small fish, with the largest species up to 7.5 cm (3.0 in) in total length.

Species

There are currently 7 recognized species in this genus:^[5]

• Neofundulus acutirostratus W. J. E. M. Costa, 1992
• Neofundulus aureomaculatus W. J. E. M. Costa, 2015^[2]
• Neofundulus guaporensis W. J. E. M. Costa, 1988
• Neofundulus paraguayensis (C. H. Eigenmann & C. H. Kennedy, 1903)
• Neofundulus parvipinnis W. J. E. M. Costa, 1988
• Neofundulus rubrofasciatus W. J. E. M. Costa, 2015^[2]
• Neofundulus splendidus D. T. B. Nielsen & Brousseau, 2013^[3]

Synonyms

• Neofundulus ornatipinnis G. S. Myers, 1935, synonym of Neofundulus paraguayensis (Eigenmann & Kennedy, 1903)