Opinions from P. E. Raymond 1916
- 'Ambonychia belongs to Ambonychidae'
- 'Ambonychidae belongs to Prionodesmacea'
- 'Cleionychia is corrected as Clionychia and belongs to Ambonychidae'
- 'Clidophorus belongs to Ledidae'
- 'Clidophorus obscurus belongs to Clidophorus' according to Raymond 1905
- 'Conocardiidae belongs to Prionodesmacea'
- 'Conocardium belongs to Conocardiidae'
- 'Ctenodonta belongs to Ctenodontidae'
- 'Ctenodonta bidorsata belongs to Ctenodonta' according to Raymond 1906
- 'Ctenodonta dubiaformis belongs to Ctenodonta' according to Raymond 1905
- 'Ctenodonta levata is a subjective synonym of Ctenodonta peracuta'
- 'Ctenodonta parvidens belongs to Ctenodonta' according to Raymond 1905
- 'Ctenodonta peracuta belongs to Ctenodonta' according to Raymond 1905
- 'Ctenodontidae belongs to Prionodesmacea'
- 'Cyrtodonta belongs to Cyrtodontidae'
- 'Cyrtodonta breviuscula belongs to Cyrtodonta' according to Billings 1859
- 'Cyrtodonta lamellosa belongs to Cyrtodonta' according to Hudson 1903
- 'Cyrtodonta scala belongs to Cyrtodonta' according to Raymond 1906
- 'Cyrtodonta solitaria belongs to Cyrtodonta' according to Raymond 1905
- 'Cyrtodonta tranceps is recombined as Endodesma tranceps'
- 'Cyrtodontidae belongs to Prionodesmacea'
- 'Endodesma belongs to Modiolopsidae'
- 'Ledidae belongs to Prionodesmacea'
- 'Modiolopsidae belongs to Prionodesmacea'
- 'Modiolopsis belongs to Modiolopsidae'
- 'Modiolopsis exanimis belongs to Modiolopsis'
- 'Modiolopsis fabaformis belongs to Modiolopsis' according to Raymond 1905
- 'Modiolopsis parviuscula belongs to Modiolopsis' according to Billings 1859
- 'Modiolopsis sowteri belongs to Modiolopsis' according to Raymond 1905
- 'Modiolopsis subquadrilateralis belongs to Modiolopsis' according to Hudson 1903
- 'Pelecypoda belongs to Mollusca'
- 'Prionodesmacea belongs to Pelecypoda'
- 'Vanuxemia belongs to Cyrtodontidae'
- 'Vanuxemia limbata belongs to Vanuxemia' according to Raymond 1905
- 'Whiteavsia belongs to Modiolopsidae'
- 'Whiteavsia expansa belongs to Whiteavsia' according to Raymond 1906
- 'Whiteavsia undata belongs to Whiteavsia' according to Raymond 1906
- 'Whitella canadensis is recombined as Sowteria canadensis'