| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Delphinus guianensis | Van Beneden, 1864 | synonym | No | senior synonym |
original combination |
| ! Delphinus guyanensis | Van Beneden, 1864 | synonym | No | senior synonym |
original combination |
| Sotalia brasiliensis | van Bénéden, 1875 | synonym | No | junior synonym |
original combination |
| ! Sotalia braziliensis | Racovitza, 1903 | synonym | No | junior synonym |
original combination |
| Sotalia fluviatilis guianensis | (van Bénéden, 1864) | synonym | No | junior synonym |
new combination |
| Sotalia guianensis | (Van Beneden, 1864) | accepted name | Yes | senior synonym |
new combination |
| Steno guianensis | Trouessart, 1898 | synonym | No | junior synonym |
original combination |
| Tursio guianensis | Gray, 1866 | synonym | No | junior synonym |
original combination |