Aphanotorulus

{{Short description|Genus of fishes}}

{{Automatic Taxobox

| image = 芝麻異形 Aphanotorulus sp. - panoramio.jpg

| image_caption = Aphanotorulus sp.

| taxon = Aphanotorulus

| authority = Isbrücker & Nijssen, 1983

| synonyms = Squaliforma Isbrücker & Michels, 2001

}}

Aphanotorulus is a genus of armored catfishes native to the Amazon, Orinoco, Essequibo and Jaguaribe basins in South America.{{FishBase genus | genus = Aphanotorulus| month = May | year = 2017}}Ray, C.K. & Armbruster, J.W. (2016): The genera Isorineloricaria and Aphanotorulus (Siluriformes: Loricariidae) with description of a new species. Zootaxa, 4072 (5): 501–539. They typically occur on a sand or gravel bottom in slow to moderately flowing rivers and streams,{{cite book |editor1=van der Sleen, P. |editor2=J.S. Albert | year=2017 | title=Field Guide to the Fishes of the Amazon, Orinoco, and Guianas | publisher=Princeton University Press | page=267 | isbn=978-0691170749 }} but some species occur in areas with fast current.{{cite journal |author1=Oliveira, A.S. |author2=L.R. Py-Daniel |author3=C.H. Zawadzki | year=2017 | title=A new species of Aphanotorulus (Siluriformes: Loricariidae) from the rio Aripuanã basin, Brazil | journal=Neotrop. Ichthyol. | volume=15 | number=1 | doi=10.1590/1982-0224-20160034 | doi-access=free }} The largest species in the genus reaches up to {{convert|51|cm|in|abbr=on}} in standard length.