Hemiancistrus pankimpuju Lujan & Chamon, 2008 [2] Peckoltia pankimpuju is a species of armored catfish from the family Loricariidae, native to the Marañón River in the upper Amazon basin of Peru.

[3] It is commonly called the coal pleco, Peruvian lyre-tail, and L350 under the L-number code.

[7] This species, Panaque bathyphilus, Panaqolus nix, Loricaria spinulifera and L. pumila are the only loricariid catfish species known to occur in a deep water form with reduced pigment and eyes (similar to cavefish), and another "normal" form in shallower waters.

[3][7][8][9] P. pankimpuju and a few other loricariid catfish species of the main stream of large South American rivers have greatly elongated streamers on their tail.

[3] It is speculated that this may serve as an early warning system against the large predatory catfish that also roam their habitat.