Ancistrus minutus Fisch-Muller, Mazzoni & Weber, 2001.

Ichthyol. Explor. Freshwaters. 12 (4): 289-304, fig. 1, 5-7, tabl. 2-4.


Paratypes:
MHNG 2612.48, 2, 44.0-50.1 mm SL (BR 975, 1005); Brazil: Goyás: Minaçú córrego Báteias, a left bank tributary of the upper rio Tocantins (13 49' S / 48 20' W) [upper rio Tocantins drainage (upstream of UHE Serra da Mesa since 1997)]; J. L. Costa Novaes, R. Mazzoni, F. Moraes & C. Weber, 5 Oct 1996 (PSM 96100503; BR 979).
MHNG 2612,49, 2, 38.9 (cleared and stained; BR 1112) and 39.0 mm SL (BR1100); Niquelândia: ribeirão Acaba-Saco, a right bank tributary of the rio Maranhão, under the bridge on National road (14 31'S 48 56'W)[upper rio Tocantins drainage (upstream of UHE Serra da Mesa since 1997)]; E. Caramaschi et al., 14 Oct 1996 (PSM 9610140).
MHNG 2612.50, 1, 43.3 mm SL (BR 1140); Brazil: Goyás: Uruaçú, córrego Acaba-Vida, small tributary of rio Passa-Três, a left bank tributary of the rio Maranhão (14 29' S / 49.17' W) [upper rio Tocantins drainage (upstream of UHE Serra da Mesa since 1997)]; E. Caramaschi et al., 15 Oct 1996 (PSM 96101503, BR 1140).