Opinions from R. V. Melville 1956
- 'Antiquilima was reranked as Lima (Antiquilima) and belongs to Lima'
- 'Arca (Cucullaea) intermedia belongs to Arca (Cucullaea)' according to Simpson 1855
- 'Arca (Cucullaea) intermedia is recombined as Grammatodon intermedius'
- 'Arca stricklandi belongs to Arca' according to Tate 1870
- 'Arca stricklandi is recombined as Cucullaea stricklandi'
- 'Camptonectes mundus belongs to Camptonectes'
- 'Catella fossa belongs to Catella'
- 'Cerithium slatteri is recombined as Procerithium slatteri'
- 'Cucullaea obliqua belongs to Cucullaea' according to Lycett 1850
- 'Cucullaea obliqua belongs to Cucullaea'
- 'Grammatodon insons belongs to Grammatodon'
- 'Laevitrigonia troedssoni belongs to Laevitrigonia'
- 'Lingula davidsoni belongs to Lingula' according to Oppel 1856
- 'Nemodon was reranked as Parallelodon (Nemodon) and belongs to Parallelodon'
- 'Nucula navis is recombined as Nucula (Palaeonucula) navis'
- 'Ostrea calceolus belongs to Ostrea' according to Zieten 1923
- 'Ostrea calceolus is recombined as Ostrea (Liostrea) calceola'
- 'Ostrea davaiacensis belongs to Ostrea' according to Lissajous 1923
- 'Ostrea davaiacensis is recombined as Ostrea (Liostrea) davaiacensis'
- 'Ovactaeonina was reranked as Acteonina (Ovactaeonina) and belongs to Acteonina'
- 'Parallelodon (Nemodon) nuarsense belongs to Parallelodon (Nemodon)' according to Cossmann 1913
- 'Parallelodon (Nemodon) nuarsense is recombined as Cucullaea nuarsensis'
- 'Pecten calvus belongs to Pecten' according to Goldfuss 1836
- 'Pecten calvus is recombined as Chlamys calva'
- 'Pecten jamoignensis belongs to Pecten' according to Terquem and Piette 1865
- 'Pecten jamoignensis is recombined as Camptonectes jamoignensis'
- 'Pecten lohbergensis belongs to Pecten' according to Emerson 1870
- 'Pecten lohbergensis is recombined as Chlamys (Camptonectes) lohbergensis' according to Cox 1926
- 'Pecten lohbergensis is recombined as Camptonectes lohbergensis'
- 'Pecten securis belongs to Pecten' according to Dumortier 1864
- 'Pecten securis is a subjective synonym of Chlamys subulata'
- 'Pecten subulatus is recombined as Chlamys subulata'
- 'Procerithium (Rhabdocolpus) farmingtonense belongs to Procerithium (Rhabdocolpus)'
- 'Procerithium nannoide belongs to Procerithium'
- 'Pseudobythinella belongs to Hydrobiidae'
- 'Pseudobythinella maris belongs to Pseudobythinella'
- 'Regalilima was reranked as Lima (Regalilima) and belongs to Lima'
- 'Ryderia was reranked as Nuculana (Ryderia) and belongs to Nuculana'
- 'Scaphotrigonia was reranked as Myophorella (Scaphotrigonia) and belongs to Myophorella'
- 'Semuridia belongs to Myalinidae'
- 'Semuridia obliqua belongs to Semuridia'
- 'Semuridia quadrata belongs to Semuridia'
- 'Trochoturbella concavispira belongs to Trochoturbella'
- 'Trochoturbella liassica belongs to Trochoturbella'
- 'Vaugonia was reranked as Myophorella (Vaugonia) and belongs to Myophorella'