Bothromesostoma truncatum Beklemischev, 1921 (original description)
Castrella (Castrella) vernalis Beklemischev, 1921 (original description)
Dalyellia armigera (Schmidt, 1861) Graff, 1905 accepted as Microdalyellia armigera (Schmidt, 1862) Gieysztor, 1938 (additional source)
Dalyellia brevimana Beklemischev, 1921 accepted as Microdalyellia brevimana (Beklemischev, 1921) Gieysztor, 1938 (original description)
Dalyellia cuspidata (Schmidt, 1861) Hofsten, 1907 accepted as Gieysztoria cuspidata (Schmidt, 1861) Ruebush & Hayes, 1939 (additional source)
Dalyellia fusca (Fuhrmann, 1894) Graff, 1905 accepted as Microdalyellia fusca (Fuhrmann, 1894) Ruebush & Hayes, 1939 (additional source)
Dalyellia hallezii (Graff, 1882) Graff, 1905 (taxonomy source)
Dalyellia karisaimica accepted as Dalyellia karisalmica Nasonov, 1917 accepted as Dalyellia rossi Graff, 1911 accepted as Microdalyellia rossi (Graff, 1911) Gieysztor, 1938 (basis of record)
Dalyellia karisalmica Nasonov, 1917 accepted as Dalyellia rossi Graff, 1911 accepted as Microdalyellia rossi (Graff, 1911) Gieysztor, 1938 (additional source)
Dalyellia nanella Beklemischev, 1921 accepted as Microdalyellia nanella (Beklemischev, 1921) Gieysztor, 1939 (original description)
Dalyellia sphagnetica Beklemischev, 1921 accepted as Dalyellia mollosovi Nasonov, 1920 accepted as Microdalyellia mollosovi (Nasonov, 1920) Gieysztor, 1938 (original description)
Dalyellia striata (Plotnikow, 1905) Graff, 1913 accepted as Dalyellia fairchildi Graff, 1911 accepted as Microdalyellia fairchildi (Graff, 1911) Gieysztor, 1938 (additional source)
Dalyellia virgulifera (Plotnikow, 1906) Graff, 1905 accepted as Microdalyellia virgulifera (Plotnikow, 1905) Gieysztor, 1938 accepted as Microdalyellia (Gieysztoria) virgulifera (Plotnikow, 1906) Gieysztor, 1938 accepted as Gieysztoria virgulifera (Plotnikow, 1906) Ruebush & Hayes, 1939 (additional source)
Olisthanella palmeni rhynchocephala Beklemischev, 1921 accepted as Olisthanella palmeni Nasonov, 1917 (original description)
Polycystis tenuis Beklemischev, 1927 accepted as Sekerana stolci (Sekera, 1911) Strand, 1914 (original description)
Strongylostoma bologoviense (Plotnikow, 1906) Beklemischev, 1921 accepted as Strongylostoma elongatum elongatum Hofsten, 1907 (source of synonymy)
Strongylostoma cirratum Beklemischev, 1921 (original description)

Mongolia for Castrella (Castrella) truncata (Abildgaard, 1789) Sekera, 1906 
Russia for Bothromesostoma essenii Braun, 1885 
Russia for Bothromesostoma essenii Braun, 1885 
Russia for Bothromesostoma personatum (Schmidt, 1848) Braun, 1885 
Russia for Castrada (Castrada) armata (Fuhrmann, 1894) Luther, 1904 
Russia for Castrada (Castrada) hofmanni Braun, 1885 
Russia for Castrada (Castrada) intermedia (Volz, 1898) Luther, 1904 
Russia for Castrada (Castrada) lanceola (Braun, 1885) Luther, 1904 
Russia for Castrada (Castrada) neocomensis Volz, 1898 
Russia for Castrada (Castrada) perspicua (Fuhrmann, 1894) Luther, 1904 
Russia for Castrada (Castrada) perspicua (Fuhrmann, 1894) Luther, 1904 
Russia for Castrada (Castrada) viridis Volz, 1898 
Russia for Castrella (Castrella) truncata (Abildgaard, 1789) Sekera, 1906 
Russia for Castrella (Castrella) truncata (Abildgaard, 1789) Sekera, 1906 
Russia for Castrella (Castrella) vernalis Beklemischev, 1921 
Russia for Castrella (Nasonoviella) lutheri (Nasonov, 1917) Luther, 1955 
Russia for Geocentrophora sphyrocephala de Man, 1876 
Russia for Gieysztoria cuspidata (Schmidt, 1861) Ruebush & Hayes, 1939 
Russia for Gieysztoria infundibuliformis (Fuhrmann, 1894) Ruebush & Hayes, 1939 
Russia for Gieysztoria rubra (Fuhrmann, 1894) Ruebush & Hayes, 1939 
Russia for Gieysztoria rubra (Fuhrmann, 1894) Ruebush & Hayes, 1939 
Russia for Gieysztoria rubra (Fuhrmann, 1894) Ruebush & Hayes, 1939 
Russia for Mesostoma craci Schmidt, 1858 
Russia for Mesostoma ehrenbergii (Focke, 1836) Örsted, 1843 
Russia for Mesostoma lingua (Abildgaard, 1789) Schmidt, 1848 
Russia for Mesostoma productum (Schmidt, 1848) Leuckart, 1854 
Russia for Mesostoma tetragonum (Müller, 1774) Schmidt, 1848 
Russia for Microdalyellia armigera (Schmidt, 1862) Gieysztor, 1938 
Russia for Microdalyellia brevimana (Beklemischev, 1921) Gieysztor, 1938 
Russia for Microdalyellia brevimana (Beklemischev, 1921) Gieysztor, 1938 
Russia for Microdalyellia brevimana (Beklemischev, 1921) Gieysztor, 1938 
Russia for Microdalyellia fairchildi (Graff, 1911) Gieysztor, 1938 
Russia for Microdalyellia mollosovi (Nasonov, 1920) Gieysztor, 1938 
Russia for Microdalyellia nanella (Beklemischev, 1921) Gieysztor, 1939 
Russia for Microdalyellia rossi (Graff, 1911) Gieysztor, 1938 
Russia for Olisthanella palmeni Nasonov, 1917 
Russia for Olisthanella truncula (Schmidt, 1858) Voigt, 1892 
Russia for Olisthanella truncula (Schmidt, 1858) Voigt, 1892 
Russia for Phaenocora typhlops (Vejdovsky, 1880) Hofsten, 1907 
Russia for Phaenocora typhlops (Vejdovsky, 1880) Hofsten, 1907 
Russia for Phaenocora unipunctata (Ørsted, 1843) Bendl, 1908 
Russia for Rhynchomesostoma rostratum (Müller, 1774) Luther, 1904 
Russia for Typhloplana viridata (Abildgaard, 1789) Ehrenberg, 1831