| author | date | title | journal / publication | Oye EL van | 1941 | abs. | Verbreitung und Oekologie der paludicolen Tricladen in Belgien. | Arch. Hydrobiol. 38(1): 110-147, 13 f. t. I-II. |
|---|
| Crenobia alpina septentrionalis (Thienemann, 1938) | w | other research on this sp. | ||
| Polycelis cornuta Johnston, 1822 | w | other research on this sp. | ||
| Euplanaria gonocephala (Duges, 1830) | w | other research on this sp. | ||
| Polycelis nigra (Müller, 1774) | [with synonyms] | w | other research on this sp. | |
| Crenobia alpina (Dana, 1766) | [with synonyms] | w | other taxonomic work |