| Promesostoma ovoideum ovoideum Graff, 1905 | 1913 or earlier |  |  |  | 
| Schizorhynchus coecus Hallez, 1894 | 1911 or earlier | 13-14 m |  |  | 
| Gyrator bivittatus Uljanin, 1870 | 1913 or earlier | 21 m |  |  | 
| Plagiostomum reticulatum (Schmidt, 1852) | 1913 or earlier | littoral |  | red variation. | 
| Plagiostomum vittatum (Frey & Leuckart, 1847) | 1913 or earlier |  |  |  | 
| Plagiostomum benedeni (Schmidt, 1852) | 1913 or earlier |  |  |  | 
| Vorticeros auriculatum (Müller, 1784) | 1913 or earlier | 0-35m |  | littoral up to 35 m deep in Algen and Bryozoen. | 
| Pseudostomum klostermanni (Graff, 1874) | 1913 or earlier |  |  |  | 
| Pseudostomum inerme (Hallez, 1879) | 1893 or earlier |  |  | among algae. | 
| Allostoma pallidum Beneden, 1861 | 1913 or earlier |  |  |  | 
| Monocelis lineata (Müller, 1773) | 1913 or earlier |  |  |  | 
| Bothriomolus constrictus Hallez, 1909 | 1913 or earlier |  | sand | under rocks, fine shell rubble. | 
| Leptoplana schizoporellae Hallez, 1893 | 1893 or earlier |  |  | English Channel, Portel |