Ancistrus verecundus Fisch-Muller, Cardoso, da Silva & Bertaco 2005

This species is easily distinguished from all congeners, except A. jataiensis, A. parecis, A. reisi, and A. tombador by the absence of an adipose fin which is replaced by a series of 3 to 5 median, unpaired platelets forming a low postdorsal ridge. It also differs from all congeners in lacking an adipose fin, except for A. tombador, by the naked margin of snout broad and the reduced development of snout tentacles in both sexes (usually absent), and by the presence of two or more plates of the dorsal plate series between the end of the postdorsal ridge and the origin of the first dorsal procurrent caudal-fin (vs. one or none). This species is distinguished from A. tombador by the head depth at supraoccipital (17.9-19.3 vs. 15.6-16.9% SL), cleithral width (31.4-33.1 vs. 27.5-31.2% SL), interorbital width (15.9-16.8 vs. 12.7-15.1% SL), and by the base of the first anal-fin pterygiophore covered by skin (vs. exposed) (Ref. 56914).

Dorsal spines (total): 1; Dorsal soft rays (total): 7 - 8; Analspines: 1; Analsoft rays: 4

Ancistrus verecundus is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Madeira River basin in Brazil. The species reaches 5.5 cm (2.2 inches) SL. Its specific epithet, verecundus, derives from Latin and means "modest" or "bashful", referencing the absence or reduced presence of tentacles on the snout of the species.