Rhyacoglanis annulatus
Rhyacoglanis annulatus Shibatta & Vari, 2017


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Family:  Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes), subfamily: Pseudopimelodinae
Max. size:  4.25 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  South America: Venezuela.
Diagnosis:  Vertebrae: 34-35. This species can be distinguished from congeners by the presence of caudal-peduncle band with an unpigmented central region (vs. band uniformly dark), and a larger distance between anus and anal-fin origin (Ref. 128485).
Biology:  A rheophilic species, prefer rapids and other swift-flowing waters. Possibly rare, known only from two preserved specimens collected in widely separated areas from the southern portions of the Rio Orinoco basin (Ref. 128485).
IUCN Red List Status: Data deficient (DD); Date assessed: 09 November 2020 Ref. (130435)
Threat to humans:  harmless


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