| Species | Name Used in Reference |
|---|---|
| Hypostomus affinis (Steindachner, 1877) | Hypostomus affinis (p. 193-197) |
| Hypostomus ancistroides (Ihering, 1911) | Plecostomus ancistroides (p. 195) |
| Hypostomus hermanni (Ihering, 1905) | Plecostomus hermanni (p. 193-197) |
| Hypostomus plecostomus (Linnaeus, 1758) | Plecostomus plecostomus (p. 195) |