| Common name | Guamaiacu |
| Language | Portuguese |
| Dialect | Tupi |
| Type | Vernacular |
| Official trade name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Brazil |
| Locality | |
| Ref. | Szpilman, M., 2000 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | primary lexeme |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Probably a variation of 'guamaicu' = baiacu = puffer (Tibiriçá, 1984) |