| Castrella (Castrella) obscura (Plotnikow, 1905) | | w | primary taxonomic authority (describer) | |
| Dalyellia rhombigera Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 485 |
| Dalyellia sibirica (Plotnikow, 1905) | | w | primary taxonomic authority (describer) | 484 |
| Dalyellia striata (Plotnikow, 1905) | | w | primary taxonomic authority (describer) | 486 |
| Gieysztoria sibirica (Plotnikow, 1905) | [with synonyms] | w | primary taxonomic authority (describer) | 484-485, f. 2, 12 |
| Microdalyellia sibirica (Plotnikow, 1905) | | w | primary taxonomic authority (describer) | |
| Mesostoma sigmoideum Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 481, Fig. 1, 10 w |
| Macrostomum infundibuliferum Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 480, Fig. 7; pl 25 |
| Vortex obscurus Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 487, Fig 14 |
| Vortex rhombiger Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 485; Figs 5, 9 |
| Vortex sibiricus Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 484-450, Figs 2, 12 |
| Vortex striatus Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 486-487; Figs 8, 13 |
| Castrada (Castrada) viridis Volz, 1898 | [with synonyms] | w | other taxonomic work | 483, t. 25, f. 4 |
| Gieysztoria cuspidata (Schmidt, 1861) | [with synonyms] | w | other research on this sp. | |
| Jensenia obscura Plotnikow, 1905 | | w | primary taxonomic authority (describer) | 487 |