| Nome Comune | Pirá-aca |
| Language | Portuguese |
| Dialect | Tupi-guarani |
| Tipo | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Paese | Brazil |
| Località | |
| Fonte Biblio. | Nomura, H., 1984 |
| Stadio vitale | juveniles and adults |
| Sesso | females and males |
| Core | primary lexeme |
| 1st modifier | morphology |
| 2nd modifier | |
| Remarks | Pirá = fish with no scales + acá = probably a variation of acá = savage Brazilian tree (Tibiriçá, 1984); acá also could be a variation of aca = bitter or with horns (Bueno, 1998) |