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 |