Leptopanchax is a genus of small fish, up to 5 cm (2.0 in) long, in the family Rivulidae.[2] They are found in southeastern Brazil from Paraná to Rio de Janeiro.[1][3] Depending on the exact species, they inhabit small seasonal channels in the Atlantic rainforest or temporary pools in open habitats.[3] Several Leptopanchax species are very rare and L. sanguineus is possibly extinct.[4]

Leptopanchax
A) L. sanguineus B) L. splendens C) L. aureoguttatus D) L. itanhaensis E) L. citrinipinnis F) L. opalescens
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cyprinodontiformes
Family:	Rivulidae
Genus:	Leptopanchax W. J. E. M. Costa, 2016[1]
Type species
Cynolebias citrinipinnis Costa, Lacerda & Tanizaki, 1988

Species

The species in Leptopanchax were formerly included in Leptolebias, but this makes the latter genus paraphyletic,[1] although they are still placed in that genus by Fishbase.[5]

There are currently 6 recognized species in Leptopanchax:[1][4][2]

• Leptopanchax aureoguttatus (da Cruz, 1974)
• Leptopanchax citrinipinnis (W. J. E. M. Costa, Lacerda & Tanizaki, 1988)
• Leptopanchax itanhaensis (W. J. E. M. Costa, 2008)
• Leptopanchax opalescens (G. S. Myers, 1942)
• Leptopanchax sanguineus W. J. E. M. Costa, 2019 – possibly extinct
• Leptopanchax splendens (G. S. Myers, 1942)

References

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