| Common name | Pacuzinho |
| Language | Portuguese |
| Dialect | Tupi |
| Type | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Country | Brazil |
| Locality | |
| Ref. | Santos, E., 1981 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | behavior |
| 1st modifier | mod. for size |
| 2nd modifier | |
| Remarks | Pacu = from 'pag' + 'u' = the one that eats fast (Bueno, 1998) + -zinho = suffix indicating small |