A small heptapterid catfish (largest specimen 100.8
mm SL), with elongated body, triangular in cross-section
at dorsal-fin origin, progressively more laterally
compressed to tail region. Dorsal profile slightly
convex from snout tip to dorsal-fin origin, slightly
concave just posterior to dorsal-fin base to adiposefin
origin, straight and descending along adipose-fin
base, then ascending along caudal peduncle. Ventral
profile of head straight, slightly convex along abdomen,
then straight to analfin origin and slightly descending
along caudal peduncle. Aquarium Care:
Peaceful towards conspecifics but territorial with
its own kind. Provide a moderate sized aquarium with
hiding places such as bogwood, rockwork and plants.
A good water flow is recommended with good aeration
and filtration. Diet: Live, frozen
and flake foods..
Colombia. Distributed along the upper basin of río
Cauca and río Magdalena, and in the lower río
Patía basin on the Pacific slope of western
cordillera of Colombia. Imparfinis usmai
is sympatric with I. nemacheir in the Río
Froese, R. and D. Pauly.
Editors. 2009. FishBase. World Wide Web electronic
publication. www.fishbase.org, version (09/2017).
Ortega-Lara, A., N. Milani, C. DoNascimiento,
F. Villa-Navarro and J.M. Maldonado-Ocampo,
2011. Two new trans-Andean species of Imparfinis Eigenmann
& Norris, 1900 (Siluriformes: Heptapteridae) from
Colombia. Neotrop. Ichthyol. 9(4):777-793.