| Common name | Joaninha |
| Language | Portuguese |
| Dialect | Native |
| Type | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Country | Brazil |
| Locality | |
| Ref. | Godoy, M.P., 1987 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | primary lexeme |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Joana = maybe a variation of 'joane' = extinct native people living in Pará state (Ferreira, 1999) + gensa = Same as 'jacundá' = Cichlidae fish + -inha = suffix indicating small |