Hypostomus delimai Zawadzki, de Oliveira & Debona 2013

Distinguished from all congeners, except Hypostomus carinatus (Steindachner, 1881), H. hoplonites Rapp Py-Daniel, 1988 and H. watwata Hancock, 1828, by having five to eight (mode seven) predorsal plates limiting the posterior border of the supraoccipital bone (vs. one to three plates). Can be diagnosed from Hypostomus carinatus, H. hoplonites, and H. watwata by having pale spots against darker ground color on body and fins (vs. dark spots against lighter ground color) (Ref. 93220).Description: median plate series 26-29; predorsal plates 2-4; dorsal plates below dorsal-fin base 9-10; plates between dorsal and adipose fin 6-8; plates between adipose and caudal fin 4-5; plates between end of anal-fin base and caudal fin 11-14; premaxillary teeth 10-21; dentary teeth 11-20;

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

Occurs in rivers with turbid water, rocky and sandy substrate, and various remnant riparian vegetation. Sympatric with Squaliforma cf. emarginata (Valenciennes, 1840), Hypostomus faveolus, Hypostomus cf. plecostomus (Linnaeus, 1758), H. pyrineusi (Miranda Ribeiro, 1920), and another putative undescribed species of Hypostomus (Ref. 93220).

Hypostomus delimai is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the basins of the Araguaia River and the Tocantins River in Brazil. It is typically found in areas with turbid water, riparian vegetation, and a substrate composed of rocks and sand. It is known to be sympatric with other species of Hypostomus, including H. faveolus and H. pyrineusi, as well as species of Aphanotorulus. The species reaches 25.3 cm (10 inches) in standard length and is believed to be a facultative air-breather.

Hypostomus delimai was described in 2013 by Cláudio H. Zawadzki (of the State University of Maringá), Renildo R. de Oliveira (of the National Institute of Amazonian Research), and Tiago Debona (of Western Paraná State University) on the basis of distinctive morphology and coloration.