All FishesPseudopimelodidaeRhyacoglanis  |  | 

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Scientific Name Rhyacoglanis sp. `ARAGUAIA`   
Common Name
Etymology Rhyacoglanis, from the Greek rhyax = torrent + glanis = catfish; indicating a catfish inhabiting running waters in reference to the habitat of the genus. Gender masculine. 
Hop to next section Species Information
Identification Rhyacoglanis is distinguished from other Pseudopimelodidae by three synapomorphies: presence of a light blotch on the cheek; a connection between the middle of the dark caudal-fin stripe and the dark caudal-peduncle pigmentation; and 30-35 total vertebrae. A key to the species is located HERE.
General Remarks This Rhyacoglanis from the the upper Rio Araguaia and Rio Das Mortes was originally reported as R. pulcher when a specimen's COI gene sequence was uploaded to GenBank by E.R.M. Martinez et al. [2007. Molecular phylogeny of Pseudopimelodidae (Teleostei: Siluriformes). Submitted (SEP 2007) to the EMBL/GenBank/ DDBJ databases]. Subsequent genetic testing by J. Chuctaya et al. [2023. PLoS ONE, 18(7): e0287120] of newly collected, confirmed R. pulcher revealed that this fish is not R. pulcher, but instead may be an undescribed new species.
Hop to next section Habitat Information
Distribution Upper Rio Araguaia.
Amazon, Lower Amazon, Tocantins, Lower Tocantins, Araguaia, Das Mortes (click on these areas to find other species found there)
Amazon, Lower Amazon, Tocantins, Lower Tocantins, Araguaia, Upper Araguaia (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
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Furniture See general remarks. Rhyacoglanis likely prefer well-aerated water with significant current over a substrate of rocks, pebbles and sand.
Breeding Unreported.
Breeding Reports There is no breeding report.
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Registered Keepers There is no registered keeper.
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Last Update 2023 Jul 27 09:07 (species record created: 2023 Jul 14 22:32)