| Nominal Species (n = 3) | Present allocation (n = 3) | Ref. |
|---|---|---|
| Phreatobius cisternarum Goeldi, 1905 | Phreatobius cisternarum | 36914 |
| Phreatobius dracunculus Shibatta, Muriel-Cunha & De Pinna, 2007 | Phreatobius dracunculus | 72403 |
| Phreatobius sanguijuela Fernández, Saucedo, Carvajal-Vallejos & Schaefer, 2007 | Phreatobius sanguijuela | 59347 |