| Convoluta convoluta (Abildgaard, 1806) | 1902 | littoral | | |
| Convoluta flavibacillum Jensen, 1878 | 1900 or earlier | | | found in Pala Guba by Alexandrowsk. |
| Provortex balticus (Schultze, 1851) | 1913 or earlier | | | |
| Graffilla buccinicola Jameson, 1897 | 1913 or earlier | | | in the kidney of Buccinum undatum L. and Neptunea antiqua L. |
| Jensenia angulata (Jensen, 1879) | 1913 or earlier | | | |
| Urastoma cyprinae (Graff, 1882) | 1913 or earlier | | | in Mytilus edulis L. |
| Maehrenthalia agilis (Levinsen, 1879) | 1913 or earlier | | | |
| Proxenetes flabellifer Jensen, 1878 | 1913 or earlier | | | beach water. |
| Promesostoma marmoratum (Schultze, 1851) | 1913 or earlier | | | very active, in marine and brackish water. |
| Promesostoma marmoratum marmoratum (Schultze, 1851) | 1913 or earlier | | | very active, in marine and brackish water. |
| Promesostoma murmanica Graff, 1905 | 1905 or earlier | | | in Ulven. |
| Hyporcus breitfussi Graff, 1905 | 1905 or earlier | | | |
| Acrorhynchus caledonicus (Claperede, 1861) | 1913 or earlier | 1-3 m | | in ebb tide pools, and litoral zone in large numbers. |
| Polycystis crocea (Fabricius, 1826) | 1913 or earlier | | | |
| Pseudostomum quadrioculatum (Leuckart, 1847) | 1913 or earlier | | | |
| Monocelis fusca Örsted, 1843 | 1913 or earlier | | | |
| Aphanostoma rhomboides Jensen, 1878 | 1932 or earlier | | | |
| Monocelis fusca Örsted, 1843 | 1932 or earlier | | | |
| Aphanostoma rhomboides Jensen, 1878 | 1905 or earlier | | | Barents-Sea (Alexandrowsk, Pala Guba). |
| Opistomum tundrae Nasonov, 1923 | 1923 or earlier | | | Murmansk (Alexandrovsk). |