| Species | Name Used in Reference |
|---|---|
| Hydrolycus armatus (Jardine, 1841) | Hydrolycus armatus (p. 267) |
| Hydrolycus scomberoides (Cuvier, 1819) | Hydrolycus scomberoides (p. ) |
| Hydrolycus tatauaia Toledo-Piza, Menezes & Santos, 1999 | Hydrolycus tatauaia (p. ) |
| Hydrolycus wallacei Toledo-Piza, Menezes & Santos, 1999 | Hydrolycus wallacei (p. ) |