Archiparreysia Modell, 1964 † (original description)
Archiparreysia haroldi (Reeside, 1927) † accepted as Diplodon haroldi Reeside, 1927 † (basis of record)
Arthropteron struckmanni Modell, 1964 † accepted as Chambardia struckmanni (Modell, 1964) † (original description)
Castalioides W. B. Marshall, 1934 † accepted as Diplodon (Ecuadorea) W. B. Marshall & Bowles, 1932 † represented as Diplodon Spix, 1827 (additional source)
Crassunio Modell, 1964 accepted as Unio (Crassiana) Servain, 1882 accepted as Unio Philipsson, 1788 (original description)
Dentaspatharia Modell, 1964 † (original description)
Dentaspatharia galloprovincialis (Matheron, 1843) † (basis of record)
Dentaspathariinae Modell, 1964 † accepted as Coelaturini Modell, 1942 (original description)
Lamprotula (Odhnerella) Modell, 1964 accepted as Gibbosula C. T. Simpson, 1900 (original description)
Lamprotula (Scriptolamprotula) Modell, 1964 (original description)
Margaritifera martinsoni Modell, 1964 † accepted as Margaritifera baicalica Popova, 1964 † (original description)
Meekiella Modell, 1964 † accepted as Antediplodon W. B. Marshall, 1929 † (original description)
Murraia L. S. Russell, 1932 † (additional source)
Palaeanodontidae Modell, 1964 † accepted as Palaeomutelidae Lahusen, 1897 † (original description)
Palaeanodontoidea Modell, 1964 † accepted as Palaeomuteloidea Lahusen, 1897 † (original description)
Pleiodon coxi Modell, 1964 † (original description)
Prohyria McMichael, 1957 † (basis of record)
Propotomida Modell, 1964 † (original description)
Ptychorhynchoideus Modell, 1931 † (additional source)
Rytia Stefanescu, 1896 † accepted as Potomida Swainson, 1840 (additional source)
Saharella Mongin, 1963 † (basis of record)
Yeniella Modell, 1964 † accepted as Nippononaia (Nippononaia) K. Suzuki, 1941 † represented as Nippononaia K. Suzuki, 1941 † (original description)
Yeniella paraholmesiana (Yen, 1954) † accepted as Nippononaia paraholmesiana (Yen, 1954) † (basis of record)

Buryatiya for Margaritifera martinsoni Modell, 1964 † 
Egypt for Pleiodon coxi Modell, 1964 † 
Germany for Arthropteron struckmanni Modell, 1964 † 

 Homonymy

 for Margaritana elongata Martinson, 1951 †

Invalid: junior secondary homonym of Margaritifera elongata (Lamarck, 1819). Popova (1964) introduced Margaritifera ... [details]

 Type locality

 for Arthropteron struckmanni Modell, 1964 †

"von Hannover und dem Hoggar" (Lower Saxony, Germany) [details]

 Type locality

 for Margaritifera martinsoni Modell, 1964 †

"O-Baikalien im Tanchoj-Gebiet" [Tanchoi region] (Buryatia, Russia) [details]

 Type locality

 for Pleiodon coxi Modell, 1964 †

19 km E Assuan, Egypt; early Cretaceous [details]