Pseudolithoxus tigris

Pseudolithoxus tigris is a species of armored catfish endemic to Venezuela where it is found in the upper Orinoco and Ventuari River basins. This species grows to a length of SL.
P. tigris probably matures at a relatively small size; in a specimen about SL, the snout and pectoral-fin spine odontodes are already greatly elongated, while the odontodes are only beginning to develop in similarly sized specimens of other species.
P. tigris sometimes appears in the aquarium trade, where it is typically referred to either as the tigerstriped plane pleco or by its associated L-number, which is L-257.