Isbrueckerichthys calvus Jerep, Shibatta, Pereira & Oyakawa 2006

Found usually along the bottom among rocks and stones, just under small waterfalls, of a small creek flowing through a landscape of mixed open field, riparian vegetation and forest, sometimes with a very degraded margin. The stream has rocky bottom, with small to medium-sized rocks, loose stones and gravel and some small pools along the streams with sand and mud on the bottom (Ref. 57731 ).

Isbrueckerichthys calvus is a species of armored catfish endemic to Brazil where it occurs in the Tibagi River basin. This species grows to a length of 9.02 centimetres (3.55 in) SL.