n = 5
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Pygopristis antoni | Fernández-Yépez, 1965 | Pristobrycon striolatus | Serrasalmidae | |
| Pygopristis denticulata | (Cuvier, 1819) | Pygopristis denticulata | Serrasalmidae | Lobetoothed piranha |
| Pygopristis fumarius | Müller & Troschel, 1844 | Pygopristis denticulata | Serrasalmidae | Lobetoothed piranha |
| Pygopristis gibbosus | Starks, 1913 | Pristobrycon calmoni | Serrasalmidae | |
| Pygopristis serrulatus | Valenciennes, 1850 | Serrasalmus serrulatus | Serrasalmidae |