Amnigeniella quasitenuis (Khalfin, 1950) † (basis of record)
Amnigeniella ratis (Lapshina, 1958) † (basis of record)
Amnigeniella tschuldzaniensis (Ragozin) † (basis of record)
Angarodon mrassiensis (Ragozin, 1931) † accepted as Kinerkaella mrassiensis (Ragozin, 1931) † (basis of record)
Angarodon rotundata Khalfin, 1950 † (basis of record)
Augea analoga (Khalfin, 1950) † (basis of record)
Curvirimula electa (Betekhtina, 1966) † (basis of record)
Curvirimula pseudobelgica Betekhtina, 1969 † (basis of record)
Kemeroviella Betekhtina, 1974 † (original description)
Kemeroviella mrassiellaeformis (Benediktova, 1959) † (basis of record)
Kemeroviella obliquilingualis (Benediktova, 1959) † (basis of record)
Kemeroviella tenuistriata (Benediktova, 1959) † (basis of record)
Kinerkaella longa (Khalfin, 1950) † (basis of record)
Kinerkaella ragozini Betekhtina, 1974 † (original description)
Mrassiella alternata Betekhtina, 1974 † (original description)
Mrassiella concinna Khalfin, 1950 † (status source)
Mrassiella conformata Betekhtina, 1974 † (original description)
Mrassiella finitima Betekhtina, 1974 † (original description)
Mrassiella gigantissima Khalfin, 1950 † accepted as Ussoviella gigantissima (Khalfin, 1950) † (additional source)
Mrassiella linguiformis Khalfin, 1950 † (status source)
Mrassiella magniforma f. longa Betekhtina, 1974 † (original description (unavailable nomenclaturally))
Mrassiella magniforma f. recta Betekhtina, 1974 † (original description (unavailable nomenclaturally))
Mrassiella obscura Ragozin, 1935 † (status source)
Mrassiella ovata Khalfin, 1950 † (additional source)
Mrassiella paucula (Spasskaya, 1966) † (basis of record)
Mrassiella permagna Khalfin, 1950 † (basis of record)
Mrassiella ridicula Ragozin, 1935 † (status source)
Mrassiella striata Khalfin, 1950 † (status source)
Mrassiella taeniolata (Khalfin, 1950) † (basis of record)
Mrassiellina Betekhtina, 1974 † (original description)
Mrassiellina ampla (Khalfin, 1950) † (basis of record)
Mrassiellina erracionis Betekhtina, 1974 † (original description)
Mrassiellina gorelovi Betekhtina, 1974 † (original description)
Mrassiellina kemeroviensis (Benediktova, 1959) † (basis of record)
Mrassiellina plana Betekhtina, 1974 † (original description)
Mrassiellina rotundata (Khalfin, 1950) † (basis of record)
Mrassiellina umbonata (Benediktova, 1959) † (basis of record)
Myalina kemeroviensis Betekhtina, 1974 † (original description)
Myalina kostomanovi (Khalfin, 1950) † (basis of record)
Myalina suchovi Betekhtina, 1974 † (original description)
Myalinella orestovi (Fedotov, 1938) † (basis of record)
Myalinella sibirica (Khalfin, 1950) † (basis of record)
Naiadites belianini Ragozin, 1954 † (additional source)
Orthomyalina Newell, 1942 † (additional source)
Orthomyalina bedrovi (Ragozin, 1954) † (basis of record)
Orthomyalina molchanovi [sic] † accepted as Orthomyalina moltchanovi (Khalfin, 1950) † (basis of record)
Orthomyalina moltchanovi (Khalfin, 1950) † (basis of record)
Orthomyalina ortha Betekhtina, 1974 † (original description)
Ossinoviella Ragozin, 1961 † (basis of record)
Palaeomutela marcini [sic] † accepted as Palaeomutela markini Betekhtina, 1966 † (basis of record)
Procopievskia anthracomyoides (Fedotov, 1937) † accepted as Anadontella anthracomyoides (Fedotov, 1937) † (basis of record)
Procopievskia gigantea (Ragozin, 1931) † accepted as Prokopievskia gigantea (Ragozin, 1931) † (additional source)
Procopievskia kemeroviensis (Fedotov, 1937) † accepted as Anadontella kemeroviensis (Fedotov, 1937) † (basis of record)
Procopievskia khalfini Betekhtina, 1974 † accepted as Prokopievskia khalfini Betekhtina, 1974 † (original description)
Procopievskia lanceolata Ragozin, 1939 † accepted as Prokopievskia lanceolata Ragozin, 1939 † (additional source)
Procopievskia moderata Betekhtina, 1966 † accepted as Prokopievskia moderata Betekhtina, 1966 † (additional source)
Procopievskia pseudogigantea Betekhtina, 1966 † accepted as Prokopievskia pseudogigantea Betekhtina, 1966 † (additional source)
Procopievskia recta Betekhtina, 1969 † accepted as Prokopievskia recta Betekhtina, 1969 † (additional source)
Procopievskia sygmoidea (Khalfin, 1950) † accepted as Prokopievskia sygmoidea (Khalfin, 1950) † (basis of record)
Prokopievskia anthracomyoides (Fedotov, 1937) † accepted as Anadontella anthracomyoides (Fedotov, 1937) † (basis of record)
Pseudomodiolus cylindrica (Khalfin, 1950) † accepted as Pseudomodiolus cylindricus (Khalfin, 1950) † (basis of record)
Pseudomodiolus cylindricus (Khalfin, 1950) † (basis of record)
Sinomya subkumsassiana (Benediktova) † (basis of record)

West Siberia for Kinerkaella ragozini Betekhtina, 1974 † 
West Siberia for Mrassiella alternata Betekhtina, 1974 † 
West Siberia for Mrassiella conformata Betekhtina, 1974 † 
West Siberia for Mrassiella finitima Betekhtina, 1974 † 
West Siberia for Mrassiellina erracionis Betekhtina, 1974 † 
West Siberia for Mrassiellina gorelovi Betekhtina, 1974 † 
West Siberia for Mrassiellina plana Betekhtina, 1974 † 
West Siberia for Myalina kemeroviensis Betekhtina, 1974 † 
West Siberia for Myalina suchovi Betekhtina, 1974 † 
West Siberia for Orthomyalina ortha Betekhtina, 1974 † 
West Siberia for Procopievskia khalfini Betekhtina, 1974 † 

 Classification

 for Myalinella orestovi (Fedotov, 1938) †

Classification uncertain (marked with questionmark by Betekhtina 1974). Myalinella is a marine genus, but the ... [details]

 Original description

 for Myalina kemeroviensis Betekhtina, 1974 †

Betekhtina (1974) attributes the authority of the species to Benediktova (1959) - with the words "The description ... [details]

 Status

 for Amnigeniella tschuldzaniensis (Ragozin) †

Original source/description not indicated, nor found in any work. Status uncertain! [details]

 Status

 for Mrassiella concinna Khalfin, 1950 †

Betekhtina (1974) stated that the species should be excluded from the genus Mrassiella, but she did not indicate an ... [details]

 Status

 for Mrassiella linguiformis Khalfin, 1950 †

Betekhtina (1974) stated that the species (which she misspelt as "linguliformis") should be excluded from the genus ... [details]

 Status

 for Mrassiella obscura Ragozin, 1935 †

Betekhtina (1974) stated that the species should be excluded from the genus Mrassiella, but she did not indicate an ... [details]

 Status

 for Mrassiella ridicula Ragozin, 1935 †

Betekhtina (1974) stated that the species (which she misspelt as "redicula") should be excluded from the genus ... [details]

 Status

 for Mrassiella striata Khalfin, 1950 †

Betekhtina (1974) stated that the species should be excluded from the genus Mrassiella, but she did not indicate an ... [details]

 Status

 for Sinomya subkumsassiana (Benediktova) †

Original description not indicated, status uncertain [details]

 Taxonomic remark

 for Naiadites belianini Ragozin, 1954 †

Might be a species of Myalinella according to Betekhtina (1974). [details]

 Type locality

 for Mrassiella alternata Betekhtina, 1974 †

River Un'ga at village Cheremichkino, Kuzbass, Russia [details]

 Type locality

 for Myalina suchovi Betekhtina, 1974 †

River Un'ga at village Cheremichkino, Kuzbass, Russia [details]

 Type locality

 for Orthomyalina ortha Betekhtina, 1974 †

River Un'ga at village Cheremichkino, Kuzbass, Russia [details]