Pseudolithoxus kelsorum
Pseudolithoxus kelsorum is a species of catfish in the family Loricariidae. It is native to South America, where it is known only from a single site in the Orinoco drainage, located above the Maipures Rapids and south of the Atures Rapids in the Venezuelan state of Amazonas. The species reaches 6.6 cm SL.
P. kelsorum appears in the aquarium trade, where it is usually referred to either as the banded pancake pleco or by its associated L-number, which is L-189.