Polycystis crocea (Fabricius, 1826) | 1913 or earlier | | | |
Phonorhynchus helgolandicus (Metschnikow, 1865) | 1913 or earlier | | | |
Plagiostomum vittatum (Frey & Leuckart, 1847) | 1913 or earlier | | | |
Vorticeros auriculatum (Müller, 1784) | 1913 or earlier | 0-35m | | littoral up to 35 m deep in Algen and Bryozoen. |
Vorticeros luteum Hallez, 1879 | 1913 or earlier | 0-13 m | | Generally found among Ulven and Zosteren. Found a 13 m depth, with Bugula turbinata. |
Pseudostomum inerme (Hallez, 1879) | 1893 or earlier | | | among algae. |
Monocelis fusca Örsted, 1843 | 1913 or earlier | | | |