Pseudolithoxus dumus (Armbruster & Provenzano 2000)

Body color light with large, black spots at least anteriorly; spots may combine posteriorly to form bars. Tips of dorsal and caudal spines with light orange to cream-colored spots. Lateral line plates 24-25; dorsal plates 6-9; interdorsal plates 6-7; adipose-caudal plates 6-7; folded dorsal fin plates 11-14; and postanal plates 11-13 (Ref. 40437).

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Analspines: 1; Analsoft rays: 5

Pseudolithoxus dumus is a species of armored catfish endemic to Venezuela where it occurs in the Orinoco, Negro and Casiquiare canal basins. This species grows to a length of 10.1 centimetres (4.0 in) SL.