Cat-eLog Right Pseudopimelodidae Right Rhyacoglanis  |  | 

  • Rhyacoglanis annulatusHolotype, 42.5mm SL
  • Rhyacoglanis annulatusHolotype, dorsal view
  • Rhyacoglanis annulatusHolotype, ventral view
  • Rhyacoglanis annulatusPectoral spine, dorsal view
Down Cat-eLog Data Sheet
Scientific Name Rhyacoglanis annulatus  Shibatta & Vari, 2017
Common Name
Type Locality Raudales de Atures, at Culebra, approximately 7 km S of Puerto Ayacucho, río Orinoco basin, Amazonas, Venezuela, approximately 05°35'N, 67°31'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 epithet annulatus, from the Latin adjective annularis = ringed, referring to the caudal peduncle band forming a dark ring with a light inner region.
Down Species Information
Size 43mm or 1.7" 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.
Down Habitat Information
Distribution
Orinoco (click on these areas to find other species found there)

Login to view the map.
IUCN Red List Category
Data Deficient
, range map and more is available on the IUCN species page. Last assessed 2020.
Down 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.
Down Further Information
Reference Neotropical Ichthyology v. 15 (no. 2) e160132, pp 5, Figs. 2, 3a.
Registered Keepers There is but a single registered keeper, view all "my cats" data.
Wishlists Love this species? Click the heart to add it to your wish list.
There are 2 wishes to keep this species, see who wants what.
Spotters Spotted this species somewhere? Click the binoculars!
There are 2 records of this fish being seen, view them all.
Forum BBCode
Search for R. annulatus
Look up AquaticRepublic.com Look up R. annulatus on AquaticRepublic.com
Look up on Fishbase Look up R. annulatus on Fishbase
Look up on Encyclopedia of Life Look up R. annulatus on Encyclopedia of Life
Look up on Global Biodiversity Information Facility Look up R. annulatus on Global Biodiversity Information Facility
Rhyacoglanis annulatus QR code LFS label creator
ARN ref:1.31.1297.6995
Last Update 2023 Jul 30 19:32 (species record created: 2017 Jun 13 08:23)