Opinions from L. G. Hertlein and U. S. Grant 1972
- 'Acila belongs to Nuculidae'
- 'Acila (Truncacila) belongs to Acila'
- 'Aeidimytilus belongs to Mytilidae'
- 'Anadara belongs to Arcidae'
- 'Arca belongs to Arcidae'
- 'Arca (Arca) belongs to Arca'
- 'Arca (Arca) sisquocensis belongs to Arca (Arca)'
- 'Arca trilineata is recombined as Anadara trilineata'
- 'Axinea profunda is recombined as Glycymeris (Axinola) profunda'
- 'Axinea profunda is recombined as Glycymeris profunda' according to Willet 1943
- 'Axinola was reranked as Glycymeris (Axinola) and belongs to Glycymeris'
- 'Barbatia belongs to Arcidae'
- 'Barbatia (Fugleria) belongs to Barbatia'
- 'Byssoarca illota is recombined as Barbatia (Fugleria) illota'
- 'Corbula luticola is recombined as Sphenia luticola'
- 'Crenella belongs to Mytilidae'
- 'Crenella inflata belongs to Crenella' according to Carpenter 1864
- 'Crenella inflata belongs to Crenella'
- 'Crenomytilus was reranked as Mytilus (Crenomytilus) and belongs to Mytilus'
- 'Ennucula was reranked as Nucula (Ennucula) and belongs to Nucula'
- 'Glycymeris belongs to Glycymerididae'
- 'Glycymeris coalingensis is a subjective synonym of Glycymeris (Axinola) grewingki'
- 'Glycymeris grewingki is recombined as Glycymeris (Axinola) grewingki'
- 'Gregariella belongs to Mytilidae'
- 'Lamellinucula was reranked as Nucula (Lamellinucula) and belongs to Nucula'
- 'Leda taphria is recombined as Nuculana (Saccella) taphria'
- 'Lithophaga belongs to Mytilidae'
- 'Modiola recta is recombined as Modiolus rectus'
- 'Mytilus belongs to Mytilidae'
- 'Mytilus (Mytiloconcha) coalingensis belongs to Mytilus (Mytiloconcha)' according to Arnold 1909
- 'Mytilus (Mytiloconcha) coalingensis is recombined as Mytilus (Crenomytilus) coalingensis'
- 'Mytilus (Mytilus) belongs to Mytilus'
- 'Mytilus adamsianus is recombined as Aeidimytilus adamsianus'
- 'Mytilus chenui is recombined as Gregariella chenui'
- 'Mytilus edulis is recombined as Mytilus (Mytilus) edulis'
- 'Nucula belongs to Nuculidae'
- 'Nucula (Ennucula) balboana belongs to Nucula (Ennucula)'
- 'Nucula castrensis is recombined as Acila (Truncacila) castrensis'
- 'Nucula exigua is recombined as Nucula (Lamellinucula) exigua'
- 'Nuculana belongs to Nuculanidae'
- 'Nuculana (Nuculana) belongs to Nuculana'
- 'Pecten (Cyclopecten) pernomus is recombined as Cyclopecten pernomus'
- 'Pectunculus septentrionalis is recombined as Glycymeris septentrionalis'
- 'Saccella was reranked as Nuculana (Saccella) and belongs to Nuculana'
- 'Venus lamellifera is recombined as Irusella lamellifera'
- 'Volsella sacculifer belongs to Volsella' according to Berry 1953
- 'Volsella sacculifer is recombined as Modiolus sacculifer'
- 'Yoldia cooperii is recombined as Yoldia (Kalayoldia) cooperii'