| Convoluta convoluta (Abildgaard, 1806) | prior to 1905 | littoral | | |
| Convoluta schultzii Schmidt, 1852 | 1854 or earlier | | | |
| Polycystis naegelii Kölliker, 1845 | 1913 or earlier | | | living among plants in the litoral zone. |
| Vorticeros auriculatum (Müller, 1784) | 1913 or earlier | 0-35m | | littoral up to 35 m deep in Algen and Bryozoen. With Ulven. |
| Pseudostomum klostermanni (Graff, 1874) | 1913 or earlier | | | |
| Allostoma monotrochum Graff, 1882 | 1913 or earlier | | | also with Plagiostomum girardi. |
| Monocelis longiceps (Duges, 1830) | 1913 or earlier | | | |
| Convoluta schultzii Schmidt, 1852 | 1933 or earlier | | | |
| Convoluta convoluta (Abildgaard, 1806) | 1933 or earlier | | | |
| Convoluta sordida Graff, 1882 | 1933 or earlier | | | |