Quoted in some publications
as Nannoptopoma, this was based on the assumption
that the Nannoptopoma genus were smaller
and flattened latterly. These former Nannoptopoma
species are reassigned to Hypoptopoma, thus
rendering the former generic name a subjective junior
synonym of Hypoptopoma. The species of Hypoptopoma
typically occur in streams of slow to moderate current
and muddy to sandy bottom with marginal emergent vegetation.
Evers, H.-G. &
Baensch Catfish Atlas Volume 1, 1st English edn.,
2005. Pp.944. Aquino, A.E. and S.A. Schaefer 2010
Systematics of the genus Hypoptopoma Günther,
1868 (Siluriformes, Loricariidae). Bull. Amer. Mus.
Nat. Hist. 336:1-110.