Isorineloricaria is a genus of catfish in the family Loricariidae from northwestern South America.[1] They live in rivers and streams, typically with slow to moderately running water,[2] in the Orinoco, Maracaibo, Magdalena and Guayas basins (one species in each basin).[1] The largest species in the genus reaches up to 52cm (20inches) in standard length.[2]
The taxonomy of this genus has been a matter of dispute, all having been placed in Hypostomus in the past, and some occasionally placed in Squaliforma. Squaliforma is now regarded as a synonym of Aphanotorulus, but species west of the Andes have been moved to Isorineloricaria.[1]
There are currently 4 recognized species in this genus:[1]