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Scleromystax
Genus of fishes From Wikipedia, the free encyclopedia
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Scleromystax is a genus of fish in the family Callichthyidae endemic to small tributaries from several coastal river basins draining the southern and southeastern regions in Brazil.[1] Most of the species of Scleromystax are highly sexually dimorphic; males have developed odontodes inserted in fleshy papillae on the preopercular-opercular region and the dorsal and pectoral fins are 2–3 times as long as those of females.[1] S. salmacis is an exception, as its sexually dimorphic features are subtle and non-remarkable.
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Taxonomy
The species of Scleromystax were previously classified within the genus Corydoras. However, Scleromystax species are now thought to be more closely related to Aspidoras in a tribe called Aspidoradini.[2] Although the monophyly of Scleromystax has been demonstrated, phylogenetic relationships of its species remains obscure. In addition, the taxonomic status of its species are only partially resolved.[1]
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Species
There are currently 5 recognized species in this genus:
- Scleromystax barbatus (Quoy & Gaimard, 1824)
- Scleromystax macropterus (Regan, 1913)
- Scleromystax prionotos (Nijssen & Isbrücker, 1980)
- Scleromystax reisi M. R. Britto, Fukakusa & L. R. Malabarba, 2016 [3]
- Scleromystax salmacis M. R. Britto & R. E. dos Reis, 2005
References
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