PlanetCatfish.com - Rhyacoglanis rapppydanielae (Pseudopimelodidae) Cat-eLog

Cat-eLog Data Sheet
Scientific Name	**Rhyacoglanis rapppydanielae** Shibatta, Rocha & Oliveira, 2021
Common Name
Type Locality	Small rapids downstream Jatobal, Rio Tocantins, Tucuruí, Pará, Brazil, about 04°28'26.5"S, 49°27'18.24"W.
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. The specific name rapppydanielae, homage to Brazilian ichthyologist Lucia H. Rapp Py-Daniel for her outstanding contribution to Neotropical fishes’ systematics. She is the founder and current curator of the fish collection at Instituto Nacional de Pesquisas da Amazônia (INPA), whose scientific importance is recognized by the national and international communities.
Species Information
Size	38mm or 1.5" SL. Find near, nearer or same sized spp.
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	Rhyacoglanis rapppydanielae is the smallest of all currently described species in this genus.
Habitat Information
Distribution	South America: Jatobal rapids, lower Tocantins River basin, Pará, Brazil. Amazon, Lower Amazon, Tocantins (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Not Evaluated
Other Parameters	Little is known of these fish in the aquarium. Provide good aeration; modest current may be beneficial.
Husbandry Information
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.
Further Information
Reference	Neotropical Ichthyology v. 19 (no. 4) (art. e210083), pp 3, Figs. 1-2A, 3A, 4-5.
Registered Keepers	There is no registered keeper.
Wishlists	Love this species? Click the heart to add it to your wish list. There is no wish to keep this species.
Spotters	Spotted this species somewhere? Click the binoculars! There is no record of this fish being seen.
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	LFS label creator ARN ref:1.31.1297.8240
Last Update	2025 Jan 01 12:23 (species record created: 2021 Dec 02 22:01)