Opinions from A. A. Olsson 1967
- 'Aequipecten belongs to Pectinidae'
- 'Antemetula is a subjective synonym of Metula'
- 'Arca belongs to Arcinae'
- 'Arca (Arca) belongs to Arca'
- 'Arca (Arca) williamsoni belongs to Arca (Arca)'
- 'Arca aquila belongs to Arca' according to Heilprin 1887
- 'Arca aquila is recombined as Arca (Arca) aquila'
- 'Arca imbricata is recombined as Arca (Arca) imbricata'
- 'Arca umbonata is recombined as Arca (Arca) umbonata'
- 'Arcinae belongs to Arcidae'
- 'Aurinia (Aurinia) belongs to Aurinia' according to H. Adams and A. Adams 1853
- 'Bullata belongs to Marginellidae'
- 'Busycon belongs to Busyconidae'
- 'Busycon (Busycon) belongs to Busycon' according to Röding 1798
- 'Busycon (Echinofulgur) belongs to Busycon'
- 'Busycon (Echinofulgur) echinatum helenae belongs to Busycon (Echinofulgur) echinatum'
- 'Busyconidae belongs to Buccinacea'
- 'Cancellaria belongs to Cancellariidae'
- 'Cancellaria (Massyla) shirleyae belongs to Cancellaria (Massyla)'
- 'Cancellaria venusta belongs to Cancellaria' according to Tuomey and Holmes 1857
- 'Cancellaria venusta is recombined as Cancellaria (Massyla) venusta'
- 'Cardita belongs to Carditidae'
- 'Cardita (Cardita) belongs to Cardita'
- 'Cardita (Cardita) seminolensis belongs to Cardita (Cardita)'
- 'Cardita cuvieri belongs to Cardita' according to Broderip 1832
- 'Cardita cuvieri is recombined as Cardita (Cardita) cuvieri'
- 'Cardita tricolor belongs to Cardita' according to Sowerby 1833
- 'Cardita tricolor is recombined as Cardita (Cardita) tricolor'
- 'Carditamera belongs to Carditidae'
- 'Carditamera (Carditamera) belongs to Carditamera' according to Conrad 1838
- 'Carditamera (Carditamera) belongs to Carditamera'
- 'Carditamera (Carditamera) dasytes belongs to Carditamera (Carditamera)'
- 'Cardium belongs to Cardiidae'
- 'Cardium virginianum belongs to Cardium' according to Conrad 1839
- 'Cardium virginianum is recombined as Cardium (Cerastoderma) virginianum' according to Dall 1900
- 'Cardium virginianum is recombined as Planicardium virginianum'
- 'Cerastoderma was reranked as Cardium (Cerastoderma) and belongs to Cardium' according to Dall 1900
- 'Cirsotrema belongs to Epitoniidae'
- 'Cirsotrema (Cirsotremopsis) belongs to Cirsotrema' according to Thiele 1928
- 'Cirsotrema (Cirsotremopsis) belongs to Cirsotrema'
- 'Cirsotrema (Cirsotremopsis) woodringi belongs to Cirsotrema (Cirsotremopsis)'
- 'Conus belongs to Conidae'
- 'Conus (Dendroconus) apium is recombined as Conus (Pyruconus) apium'
- 'Conus (Pyruconus) belongs to Conus'
- 'Conus druidi belongs to Conus'
- 'Conus haytensis is recombined as Conus (Lithoconus) haytensis'
- 'Conus marylandicus belongs to Conus' according to Green 1830
- 'Conus marylandicus belongs to Conus'
- 'Cymatosyrinx belongs to Turridae'
- 'Cymatosyrinx lunata aclinica belongs to Cymatosyrinx lunata' according to Tucker and Wilson 1933
- 'Cymatosyrinx lunata aclinica is recombined as Cymatosyrinx aclinica'
- 'Fasciolaria mutabilis is recombined as Volutifusus mutabilis' according to Conrad 1863
- 'Fasciolaria mutabilis is recombined as Aurinia (Volutifusus) mutabilis'
- 'Fasciolaria mutabilis belongs to Fasciolaria' according to Conrad 1834
- 'Ferminoscala is a subjective synonym of Scalina'
- 'Fulgur echinatum is recombined as Busycon (Echinofulgur) echinatum' according to Olsson and Harbison 1953
- 'Fulgur echinatum is recombined as Busycon (Echinofulgur) echinatum'
- 'Hindsia belongs to Buccinidae'
- 'Ilyanassa belongs to Nassariidae'
- 'Ilyanassa corbis belongs to Ilyanassa'
- 'Ilyanassa marthae belongs to Ilyanassa'
- 'Littorina belongs to Littorinidae'
- 'Littorina sheaferi belongs to Littorina'
- 'Marginella belongs to Marginellidae'
- 'Marginella popenoei belongs to Marginella' according to Mansfield 1930
- 'Marginella popenoei is a subjective synonym of Bullata taylori'
- 'Marginella taylori belongs to Marginella' according to Olsson 1916
- 'Marginella taylori is recombined as Bullata taylori'
- 'Marmarostoma was reranked as Turbo (Marmarostoma) and belongs to Turbo'
- 'Massyla was reranked as Cancellaria (Massyla) and belongs to Cancellaria'
- 'Metula belongs to Buccinidae'
- 'Metula roberti belongs to Metula'
- 'Microspira donovani belongs to Microspira'
- 'Monostiolum belongs to Buccinidae'
- 'Monostiolum petiti belongs to Monostiolum'
- 'Monostiolum thomasi belongs to Monostiolum'
- 'Murex carica belongs to Murex' according to Gmelin 1792
- 'Murex carica is recombined as Busycon carica' according to Smith 1938
- 'Murex carica is recombined as Busycon (Busycon) carica'
- 'Mytiloconcha belongs to Mytilidae'
- 'Mytiloconcha dariensis belongs to Mytiloconcha'
- 'Oliva belongs to Olividae'
- 'Oliva (Oliva) belongs to Oliva'
- 'Oliva (Oliva) edwardsi belongs to Oliva (Oliva)'
- 'Oliva (Oliva) murielae belongs to Oliva (Oliva)'
- 'Oliva sayana belongs to Oliva' according to Ravenel 1834
- 'Oliva sayana is recombined as Oliva (Oliva) sayana'
- 'Olivella (Callianax) belongs to Olivella'
- 'Pecten (Plagioctenium) was reranked as Aequipecten (Plagioctenium) and belongs to Aequipecten'
- 'Perplicaria belongs to Cancellariidae'
- 'Placunanomia belongs to Anomiidae'
- 'Placunanomia (Tamianomia) belongs to Placunanomia'
- 'Placunanomia plicata belongs to Placunanomia' according to Tuomey and Holmes 1857
- 'Placunanomia plicata belongs to Placunanomia'
- 'Planicardium belongs to Trachycardiinae'
- 'Pleuromeris was reranked as Cardita (Pleuromeris) and belongs to Cardita'
- 'Pleuromeris decemcostata belongs to Pleuromeris' according to Conrad 1867
- 'Pleuromeris decemcostata is recombined as Cardita (Pleuromeris) decemcostata'
- 'Pleurotoma lunata belongs to Pleurotoma' according to Lea 1833
- 'Pleurotoma lunata is recombined as Cymatosyrinx lunata' according to Tucker and Wilson 1933
- 'Pleurotoma lunata is recombined as Cymatosyrinx lunata'
- 'Pododesmus burnsi is recombined as Placunanomia (Tamianomia) burnsi'
- 'Pseudomalaxis (Extractrix) belongs to Pseudomalaxis' according to Korobkov 1955
- 'Pseudomalaxis (Extractrix) is reassigned into Trigonostoma'
- 'Pusula belongs to Cypraeidae'
- 'Pusula (Pusula) belongs to Pusula' according to Jousseaume 1884
- 'Pusula (Pusula) belongs to Pusula'
- 'Pusula (Pusula) crovoae belongs to Pusula (Pusula)'
- 'Pyrazisinus was reranked as Pyrazus (Pyrazisinus) and belongs to Pyrazus'
- 'Pyrazus belongs to Potamididae'
- 'Pyrazus (Pyrazisinus) scalinus belongs to Pyrazus (Pyrazisinus)'
- 'Scalina belongs to Epitoniidae'
- 'Scalina boylae belongs to Scalina'
- 'Scalina gardnerae belongs to Scalina'
- 'Scaphella belongs to Scaphellinae'
- 'Scaphella (Aurinia) was reranked as Aurinia and belongs to Scaphellinae'
- 'Scaphellinae belongs to Volutidae'
- 'Spisula belongs to Mactridae'
- 'Strioterebrum belongs to Terebridae'
- 'Strioterebrum brightonensis belongs to Strioterebrum'
- 'Strioterebrum colombianum belongs to Strioterebrum'
- 'Strioterebrum petiti belongs to Strioterebrum'
- 'Strioterebrum seminolum belongs to Strioterebrum'
- 'Terebra belongs to Terebridae'
- 'Terebra (Myurellina) belongs to Terebra'
- 'Terebra (Myurellina) aclinica belongs to Terebra (Myurellina)'
- 'Terebra (Myurellina) hunterae belongs to Terebra (Myurellina)'
- 'Terebra (Myurellina) miamica belongs to Terebra (Myurellina)'
- 'Terebra (Oreoterebra) belongs to Terebra'
- 'Terebra (Oreoterebra) mauryae belongs to Terebra (Oreoterebra)'
- 'Terebra isaacpetiti belongs to Terebra' according to Maury 1925
- 'Terebra isaacpetiti is recombined as Terebra (Oreoterebra) isaacpetiti'
- 'Trachycardiinae belongs to Cardiidae'
- 'Trachycardium belongs to Trachycardiinae'
- 'Trachycardium (Trachycardium) belongs to Trachycardium' according to Mörch 1853
- 'Trachycardium (Trachycardium) belongs to Trachycardium'
- 'Trajana is a subjective synonym of Hindsia'
- 'Trigonostoma belongs to Cancellariidae'
- 'Trigonostoma (Emmonsella) belongs to Trigonostoma' according to Olsson and Petit 1964
- 'Trigonostoma (Emmonsella) marthae belongs to Trigonostoma (Emmonsella)'
- 'Trigonostoma (Extractrix) hoerlei belongs to Trigonostoma (Extractrix)'
- 'Trigonostoma smithfieldensis is recombined as Trigonostoma (Emmonsella) smithfieldensis'
- 'Trigonostoma smithfieldensis belongs to Trigonostoma' according to Oleksyshyn 1960
- 'Tropochasca belongs to Melongenidae'
- 'Tropochasca petiti belongs to Tropochasca'
- 'Turbo belongs to Turbinidae'
- 'Turritella belongs to Turritellidae'
- 'Turritella (Broderiptella) belongs to Turritella'
- 'Turritella (Broderiptella) belongs to Turritella' according to Olsson 1964
- 'Turritella (Broderiptella) mansfieldi belongs to Turritella (Broderiptella)'
- 'Voluta (Microspira) belongs to Voluta' according to Conrad 1868
- 'Voluta (Microspira) was reranked as Microspira and belongs to Marginellidae'
- 'Voluta dubia belongs to Voluta' according to Broderip 1927
- 'Voluta dubia is recombined as Aurinia dubia' according to H. Adams and A. Adams 1853
- 'Voluta dubia is recombined as Aurinia (Aurinia) dubia'
- 'Voluta floridana is recombined as Scaphella floridana'
- 'Voluta obtusa belongs to Voluta' according to Emmons 1858
- 'Voluta obtusa is recombined as Scaphella (Aurinia) obtusa' according to Dall 1890
- 'Voluta obtusa is recombined as Aurinia (Volutifusus) obtusa'
- 'Voluta trenholmii belongs to Voluta' according to Tuomey and Holmes 1857
- 'Voluta trenholmii is recombined as Scaphella trenholmii' according to Dall 1890
- 'Voluta trenholmii is recombined as Scaphella trenholmii'
- 'Volutifusus was reranked as Aurinia (Volutifusus) and belongs to Aurinia'