n = 28
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Hypoptopoma acutirostre | (Miranda Ribeiro, 1951) | Oxyropsis acutirostris | Loricariidae | |
| Hypoptopoma acutirostris | (Miranda Ribeiro, 1951) | Oxyropsis acutirostris | Loricariidae | |
| Hypoptopoma baileyi | Aquino & Schaefer, 2010 | Hypoptopoma baileyi | Loricariidae | |
| Hypoptopoma bianale | Aquino & Schaefer, 2010 | Hypoptopoma bianale | Loricariidae | |
| Hypoptopoma bilobatum | Cope, 1870 | Hypoptopoma thoracatum | Loricariidae | |
| Hypoptopoma brevirostratum | Aquino & Schaefer, 2010 | Hypoptopoma brevirostratum | Loricariidae | |
| Hypoptopoma carinatum | Steindachner, 1879 | Oxyropsis carinata | Loricariidae | |
| Hypoptopoma carinatus | Steindachner, 1879 | Oxyropsis carinata | Loricariidae | |
| Hypoptopoma elongatum | Aquino & Schaefer, 2010 | Hypoptopoma elongatum | Loricariidae | |
| Hypoptopoma guentheri | Boulenger, 1895 | Hypoptopoma inexspectatum | Loricariidae | |
| Hypoptopoma guianense | Boeseman, 1974 | Hypoptopoma guianense | Loricariidae | |
| Hypoptopoma guianensis | Boeseman, 1974 | Hypoptopoma guianense | Loricariidae | |
| Hypoptopoma gulare | Cope, 1878 | Hypoptopoma gulare | Loricariidae | |
| Hypoptopoma incognitum | Aquino & Schaefer, 2010 | Hypoptopoma incognitum | Loricariidae | |
| Hypoptopoma inexpecta | (Holmberg, 1893) | Hypoptopoma inexspectatum | Loricariidae | |
| Hypoptopoma inexpectatum | (Holmberg, 1893) | Hypoptopoma inexspectatum | Loricariidae | |
| Hypoptopoma inexspectata | (Holmberg, 1893) | Hypoptopoma inexspectatum | Loricariidae | |
| Hypoptopoma inexspectatum | (Holmberg, 1893) | Hypoptopoma inexspectatum | Loricariidae | |
| Hypoptopoma joberti | (Vaillant, 1880) | Hypoptopoma gulare | Loricariidae | |
| Hypoptopoma machadoi | Aquino & Schaefer, 2010 | Hypoptopoma machadoi | Loricariidae | |
| Hypoptopoma muzuspi | Aquino & Schaefer, 2010 | Hypoptopoma muzuspi | Loricariidae | |
| Hypoptopoma psilogaster | Fowler, 1915 | Hypoptopoma psilogaster | Loricariidae | |
| Hypoptopoma spectabile | (Eigenmann, 1914) | Nannoptopoma spectabile | Loricariidae | |
| Hypoptopoma steindachneri | Boulenger, 1895 | Hypoptopoma steindachneri | Loricariidae | |
| Hypoptopoma sternoptychum | (Schaefer, 1996) | Nannoptopoma sternoptychum | Loricariidae | |
| Hypoptopoma thoracatum | Günther, 1868 | Hypoptopoma thoracatum | Loricariidae | |
| Hypoptopoma thoracatus | Günther, 1868 | Hypoptopoma thoracatum | Loricariidae | |
| Hypoptopoma wrightianum | (Eigenmann & Eigenmann, 1889) | Oxyropsis wrightiana | Loricariidae |