Rhynchoscolex sp. | 1913 or earlier | | | |
Macrostomum tuba | 1913 or earlier | | | |
Dalyellia virgulifera | 1906 or earlier | | | |
Castrada (Castrada) otophthalma | 1906 or earlier | | | |
Castrada (Castrada) hofmanni | 1913 or earlier | | | |
Castrada (Castrada) armata | 1913 or earlier | | | mud of pools and lakes, and littoral zone. |
Castrada (Castrada) sp. | 1900 or earlier | | | |
Mesostoma bologoviense | 1906 or earlier | | | |
Bothromesostoma essenii | 1913 or earlier | | | |
Macrostomum tuba | prior to 1900 | | | |
Vortex virgulifer | 1906 or earlier | | | |
Opistomum arsenii | 1906 or earlier | | | Russland: Bologoje. |
Castrada (Castrada) hofmanni | 1906 or earlier | | | Bologoje. |
Castrada (Castrada) armata | 1905 or earlier | | | Bologoje u. Glubokoje. |
Strongylostoma elongatum elongatum | 1924 or earlier | | | |
Olisthanella truncula | 1906 or earlier | | | |
Mesostoma ehrenbergii | 1900 or earlier | | | |
Bothromesostoma personatum | 1906 or earlier | | | |
Bothromesostoma essenii | 1906 or earlier | | | |
Rhynchoscolex simplex | 1900 or earlier | | | Gouv. Novgorod, See Bologoje (Plotnikov). |
Gieysztoria virgulifera | 1906 or earlier | | | Gouv. Novgorod, See Bologoje. |
Castrella (Castrella) truncata | 1900 or earlier | | | See Bologoje. |