Opinions from H. Soot-Ryen and T. Soot-Ryen 1960
- 'Ambonychia belongs to Ambonychiidae'
- 'Ambonychia amygdalina is recombined as Ambonychinia amygdalina'
- 'Ambonychia intermedia belongs to Ambonychia' according to Isberg 1934
- 'Ambonychia intermedia belongs to Ambonychia'
- 'Ambonychia lamellosa is recombined as Clionychia lamellosa'
- 'Ambonychia quadratus belongs to Ambonychia' according to Hind 1910
- 'Ambonychia quadratus is recombined as Ambonychinia quadrata'
- 'Ambonychiidae belongs to Bivalvia'
- 'Ambonychinia belongs to Ambonychiidae'
- 'Ambonychinia undulata belongs to Ambonychinia'
- 'Ambonychinia undulata belongs to Ambonychinia' according to Isberg 1934
- 'Ambonychinia unisulcata belongs to Ambonychinia' according to Isberg 1934
- 'Ambonychinia unisulcata belongs to Ambonychinia'
- 'Cleionychia is corrected as Clionychia and belongs to Ambonychiidae'
- 'Ctenodonta belongs to Ctenodontidae'
- 'Ctenodonta albertina belongs to Ctenodonta'
- 'Ctenodonta carpenteri belongs to Ctenodonta' according to Schuchert 1900
- 'Ctenodonta carpenteri belongs to Ctenodonta'
- 'Ctenodonta corbuliformis belongs to Ctenodonta'
- 'Ctenodonta coreanica belongs to Ctenodonta'
- 'Ctenodonta deserta belongs to Ctenodonta' according to Reed 1952
- 'Ctenodonta logani belongs to Ctenodonta' according to Salter 1859
- 'Ctenodonta logani belongs to Ctenodonta'
- 'Ctenodonta norvegica belongs to Ctenodonta'
- 'Ctenodonta nuda belongs to Ctenodonta'
- 'Ctenodonta oblongata belongs to Ctenodonta'
- 'Ctenodonta perangulata belongs to Ctenodonta' according to Reed 1952
- 'Ctenodonta perangulata belongs to Ctenodonta'
- 'Ctenodonta spjeldnaesi belongs to Ctenodonta'
- 'Ctenodonta subnasuta belongs to Ctenodonta' according to Ulrich 1894
- 'Ctenodonta subnasuta belongs to Ctenodonta'
- 'Ctenodontidae belongs to Bivalvia'
- 'Cyrtodontidae belongs to Bivalvia'
- 'Cyrtodontula belongs to Cyrtodontidae'
- 'Cyrtodontula dubia belongs to Cyrtodontula'
- 'Edmondia subtruncata belongs to Edmondia' according to Hall 1847
- 'Edmondia subtruncata is recombined as Cyrtodontula subtruncata'
- 'Pterinea orbicularis is recombined as Ambonychia orbicularis'
- 'Pterinea undata is recombined as Clionychia undata'
- 'Tellinomya is an objective synonym of Ctenodonta'
- 'Tellinomya nasuta is recombined as Ctenodonta nasuta'
- 'Vanuxemia belongs to Cyrtodontidae'
- 'Vanuxemia decipiens belongs to Vanuxemia' according to Ulrich 1894
- 'Vanuxemia decipiens belongs to Vanuxemia'
- 'Vanuxemia inconstans belongs to Vanuxemia' according to Billings 1858
- 'Vanuxemia inconstans belongs to Vanuxemia'
- 'Whitella is an objective synonym of Cyrtodontula'
- 'Whitella complanata belongs to Whitella' according to Foerste 1914
- 'Whitella complanata is recombined as Cyrtodontula complanata'
- 'Whitella compressa belongs to Whitella' according to Ulrich 1890
- 'Whitella compressa is recombined as Cyrtodontula compressa'
- 'Whitella obliquata is recombined as Cyrtodontula obliquata' according to Tomlin 1931
- 'Whitella obliquata is recombined as Cyrtodontula obliquata'