Convoluta convoluta | prior to 1905 | littoral | | |
Proxenetes flabellifer | 1913 or earlier | | | beach water. |
Promesostoma marmoratum marmoratum | 1913 or earlier | | | very active, in marine and brackish water. |
Promesostoma marmoratum | 1913 or earlier | | | very active, in marine and brackish water. |
Trigonostomum armatum | 1913 or earlier | 0-27 m | | found in Fucus at depths up to 27 m. |
Trigonostomum penicillatum | 1913 or earlier | | | |
Polycystis naegelii | 1913 or earlier | | | living among plants in the litoral zone. |
Polycystis crocea | 1913 or earlier | | | |
Phonorhynchus helgolandicus | 1913 or earlier | | | |
Plagiostomum girardi | 1913 or earlier | | | slow acting and swimming, in waste water and aquariums. |
Plagiostomum vittatum | 1913 or earlier | | | |
Plagiostomum koreni | 1913 or earlier | | | |
Vorticeros auriculatum | 1913 or earlier | 0-35m | | littoral up to 35 m deep in Algen and Bryozoen. |
Pseudostomum quadrioculatum | 1913 or earlier | | | |
Monocelis fusca | 1913 or earlier | | | |
Monocelis lineata | 1913 or earlier | | | |