| author | date | title | journal / publication | Morgan TH | 1904 | Polarity and axial heteromorphosis. | American Natural 38, p. 502-505. |
|---|
| Dugesia lugubris (Schmidt, 1861) | w | other research on this sp. | ||
| Planaria maculata(2) Dalyell, 1853 | w | other research on this sp. | ||
| Planaria lugubris Schmidt, 1861 | w | other research on this sp. |