Rhynchoscolex sp. (Plotnikow 1900) | 1913 or earlier | | | |
Macrostomum tuba Graff, 1882 | 1913 or earlier | | | |
Dalyellia virgulifera (Plotnikow, 1906) | 1906 or earlier | | | |
Castrada (Castrada) otophthalma Plotnikow, 1906 | 1906 or earlier | | | |
Castrada (Castrada) hofmanni Braun, 1885 | 1913 or earlier | | | |
Castrada (Castrada) armata (Fuhrmann, 1894) | 1913 or earlier | | | mud of pools and lakes, and littoral zone. |
Castrada (Castrada) sp. Plotnikow, 1900 | 1900 or earlier | | | |
Mesostoma bologoviense Plotnikow, 1906 | 1906 or earlier | | | |
Bothromesostoma essenii Braun, 1885 | 1913 or earlier | | | |
Macrostomum tuba Graff, 1882 | prior to 1900 | | | |
Vortex virgulifer Plotnikow, 1906 | 1906 or earlier | | | |
Opistomum arsenii Nasonov, 1917 | 1906 or earlier | | | Russland: Bologoje. |
Castrada (Castrada) hofmanni Braun, 1885 | 1906 or earlier | | | Bologoje. |
Castrada (Castrada) armata (Fuhrmann, 1894) | 1905 or earlier | | | Bologoje u. Glubokoje. |
Strongylostoma elongatum elongatum Hofsten N, 1907 | 1924 or earlier | | | |
Olisthanella truncula (Schmidt, 1858) | 1906 or earlier | | | |
Mesostoma ehrenbergii (Focke, 1836) | 1900 or earlier | | | |
Bothromesostoma personatum (Schmidt, 1848) | 1906 or earlier | | | |
Bothromesostoma essenii Braun, 1885 | 1906 or earlier | | | |
Rhynchoscolex simplex Leidy, 1852 | 1900 or earlier | | | Gouv. Novgorod, See Bologoje (Plotnikov). |
Gieysztoria virgulifera (Plotnikow, 1906) | 1906 or earlier | | | Gouv. Novgorod, See Bologoje. |
Castrella (Castrella) truncata (Abildgaard, 1789) | 1900 or earlier | | | See Bologoje. |