Markiana

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Markiana is a genus of freshwater ray-finned fishes in the family Stevardiidae. They live in tropical South America. The genus was described by C. H. Eigenmann in 1903, with Tetragonopterus nigripinnis (described by Perugia in 1891) as its type species. Classification: Kingdom Animalia; Phylum Chordata; Class Actinopterygii; Order Characiformes; Family Stevardiidae; Subfamily Landoninae; Genus Markiana. The genus includes several valid species.