Liosomadoras is a genus of driftwood catfish (family Auchenipteridae) from the Amazon basin, with the atlas recording both species from Brazil and Peru. Like other auchenipterids, Liosomadoras has a smooth, scaleless body patterned to mimic waterlogged wood and bark — effective camouflage among the submerged branches and leaf litter that make up its favored habitat. Both species are modest in size for the family, around 6–6.5 in, and are nocturnal, sheltering by day and becoming active hunters after dark.
Morrow's driftwood catfish (L. morrowi) and the jaguar catfish (L. oncinus) are both established, if somewhat specialist, aquarium fish — kept for their striking mottled or spotted patterning and interesting nocturnal behavior, generally in a dim, driftwood-furnished tank with plenty of cover. As in other auchenipterid catfish, fertilization is internal via a modified anal fin in males, an unusual reproductive strategy among catfish that makes captive breeding reports rare. Conservation status is only partly assessed (L. oncinus Least Concern, L. morrowi Not Evaluated).