Tridentopsis brevis

Tridentopsis brevis
Conservation status
Least Concern  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Trichomycteridae
Genus:	Tridentopsis
Species:	T. brevis
Binomial name
Tridentopsis brevis (C. H. Eigenmann & R. S. Eigenmann, 1889) [2]
Synonyms [2]
Tridens brevis C. H. Eigenmann & R. S. Eigenmann, 1889 Tridensimilis brevis (C. H. Eigenmann & R. S. Eigenmann, 1889)

Tridentopsis brevis is a species of freshwater ray-finned fishes belonging to the family Trichomycteridae, the pencil and parasitic catfishes, and the subfamily Tridentinae, the pygmy pencil catfishes. ^[2] This catfish is found in South America, #in the Amazon River basin in Brazil. T. brevis lives in the sand of shallow rivers and creeks. It is parasitic, entering the gill chambers of larger catfishes. It is also known for entering, probably by mistake, the urethra of mammals urinating under water. ^[3]

References

1. Brejão, G.L. (2023). "Tridensimilis brevis". IUCN Red List of Threatened Species . 2023 e.T164541342A164541367. doi: 10.2305/IUCN.UK.2023-1.RLTS.T164541342A164541367.en . Retrieved 22 October 2025.
2. Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Tridentopsis". Catalog of Fishes . California Academy of Sciences . Retrieved 27 November 2025.
3. Froese, Rainer; Pauly, Daniel (eds.). "Tridensimilis brevis". FishBase . July 2007 version.