Guyanancistrus

Guyanancistrus is a genus of suckermouth armored catfishes.

Species
There are currently 8 recognized species in this genus:
 * Guyanancistrus brevispinis (Heitmans, Nijssen & Isbrücker, 1983)
 * Guyanancistrus brownsbergensis Mol, Fisch-Muller & Covain, 2018
 * Guyanancistrus longispinis (Heitmans, Nijssen & Isbrücker, 1983)
 * Guyanancistrus megastictus Fisch-Muller, Mol & Covain, 2018
 * Guyanancistrus nassauensis Mol, Fisch-Muller & Covain, 2018
 * Guyanancistrus niger (Norman, 1926)
 * Guyanancistrus tenuis Fisch-Muller, Mol & Covain, 2018
 * Guyanancistrus teretirostris Fisch-Muller, Mol & Covain, 2018