n = 4
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Acarichthys geayi | (Pellegrin, 1902) | Guianacara geayi | Cichlidae | |
| Acarichthys heckeli | (Müller & Troschel, 1849) | Acarichthys heckelii | Cichlidae | Threadfin acara |
| Acarichthys heckelii | (Müller & Troschel, 1849) | Acarichthys heckelii | Cichlidae | Threadfin acara |
| Acarichthys heckelli | (Müller & Troschel, 1849) | Acarichthys heckelii | Cichlidae | Threadfin acara |