Opinions from C. A. Waring 1917
- 'Actaeon merriami belongs to Actaeon'
- 'Amauropsis oviformis belongs to Amauropsis'
- 'Amphiura lymani belongs to Amphiura'
- 'Architectonica cognata is recombined as Stellaxis cognata'
- 'Astarte conradiana is recombined as Crassatellites conradianus'
- 'Astarte tuscana is recombined as Crassatellites tuscanus'
- 'Axinaea veatchii is recombined as Glycimeris veatchi'
- 'Baculites chicoensis belongs to Baculites'
- 'Bathytoma boundeyi belongs to Bathytoma'
- 'Brachysphingus sinuatus belongs to Brachysphingus'
- 'Busycon blakei is recombined as Perissolax blakei'
- 'Cancellaria crassa belongs to Cancellaria'
- 'Cardita hornii is recombined as Venericardia planicosta hornii'
- 'Cardium brewerii belongs to Cardium'
- 'Cardium cooperii belongs to Cardium'
- 'Cinulia obliqua belongs to Cinulia'
- 'Corbula alaeformis is recombined as Leda alaeformis'
- 'Crassatellites branneri belongs to Crassatellites'
- 'Crassatellites grandis belongs to Crassatellites'
- 'Crassatellites triangulatus belongs to Crassatellites'
- 'Cucullaea mathewsonii belongs to Cucullaea'
- 'Cucullaea morani belongs to Cucullaea'
- 'Cucullaea youngi belongs to Cucullaea'
- 'Cylichna costata belongs to Cylichna'
- 'Dentalium cooperii is corrected as Dentalium cooperi and belongs to Dentalium'
- 'Dosinia milthoidea belongs to Dosinia'
- 'Dosinia pertenuis is recombined as Venus pertenuis'
- 'Fasciolaria chatsworthensis belongs to Fasciolaria'
- 'Ficus plectatus belongs to Ficus'
- 'Flabellum remondianum belongs to Flabellum'
- 'Fusus martinez is recombined as Fusinus martinez'
- 'Glycimeris maccrayi belongs to Glycimeris'
- 'Gyrodes canadensis belongs to Gyrodes'
- 'Gyrodes compressus belongs to Gyrodes'
- 'Gyrodes excavatus belongs to Gyrodes' according to Whiteaves 1879
- 'Gyrodes excavatus is a subjective synonym of Gyrodes canadensis'
- 'Gyrodes robustus belongs to Gyrodes'
- 'Hauericeras transitionale belongs to Hauericeras'
- 'Heteroterma trochoidea belongs to Heteroterma'
- 'Inoceramus pembertoni belongs to Inoceramus'
- 'Inoceramus whitneyi belongs to Inoceramus'
- 'Isocardia chicoensis belongs to Isocardia'
- 'Isocardia tejonensis belongs to Isocardia'
- 'Kingena simiensis belongs to Kingena'
- 'Lamna clavata belongs to Lamna'
- 'Lima perrini belongs to Lima'
- 'Lunatia hornii is recombined as Polynices hornii' according to Gabb 1864
- 'Lunatia hornii is recombined as Polynices hornii'
- 'Lyria andersoni belongs to Lyria'
- 'Lyria hannibali belongs to Lyria'
- 'Macrocallista cordata belongs to Macrocallista'
- 'Macrocallista stantoni belongs to Macrocallista'
- 'Mactra gabbiana belongs to Mactra'
- 'Meretrix hornii belongs to Meretrix'
- 'Miltha parsonsi belongs to Miltha'
- 'Molopophorus howardi belongs to Molopophorus' according to Dickerson 1914
- 'Molopophorus howardi is recombined as Pseudoliva howardi'
- 'Naticina obliqua is recombined as Sinum obliquum'
- 'Nautilus hallidayi belongs to Nautilus'
- 'Neptunea mucronata is recombined as Fasciolaria mucronata'
- 'Nuculana gabbii is recombined as Leda gabbi'
- 'Olivella spissa belongs to Olivella'
- 'Opis virginalis belongs to Opis'
- 'Ostrea idriaensis belongs to Ostrea'
- 'Pecten (Propeamusium) cowperi belongs to Pecten (Propeamusium)'
- 'Pectunculus veatchi major is recombined as Glycimeris veatchi major'
- 'Perissolax brevirostris belongs to Perissolax'
- 'Pholadomya brewerii is a subjective synonym of Pholadomya subelongata'
- 'Pholadomya royana belongs to Pholadomya' according to Whiteaves 1879
- 'Pholadomya royana is a subjective synonym of Pholadomya subelongata'
- 'Pholadomya subelongata belongs to Pholadomya' according to Meek 1857
- 'Pholadomya subelongata belongs to Pholadomya'
- 'Pinna calamitoides belongs to Pinna' according to Shumard 1858
- 'Pinna calamitoides belongs to Pinna' according to Shumard 1879
- 'Pinna calamitoides belongs to Pinna'
- 'Pinna lewisi belongs to Pinna'
- 'Placenticeras californicum belongs to Placenticeras'
- 'Placenticeras pacificum belongs to Placenticeras' according to Smith 1900
- 'Placenticeras pacificum belongs to Placenticeras'
- 'Placenticeras sanctaemonicae belongs to Placenticeras'
- 'Pugnellus rotundus belongs to Pugnellus'
- 'Rostellaria (Rimella) canalifera is recombined as Rimella canalifera'
- 'Rostellites gabbi belongs to Rostellites' according to White 1903
- 'Rostellites gabbi belongs to Rostellites'
- 'Septifer elegans belongs to Septifer'
- 'Sinum dickersoni belongs to Sinum'
- 'Solariaxis templetoni belongs to Solariaxis'
- 'Solen parallelus belongs to Solen'
- 'Solen stantoni belongs to Solen'
- 'Spisula aequilateralis belongs to Spisula'
- 'Stomatia suciensis belongs to Stomatia' according to Whiteaves 1879
- 'Stomatia suciensis is recombined as Lysis suciensis'
- 'Tapes conradiana is recombined as Marcia conradiana'
- 'Tellina undulifera is recombined as Periploma undulifera'
- 'Tornatina evoluta belongs to Tornatina'
- 'Trachytriton titan belongs to Trachytriton'
- 'Trigonia evansana belongs to Trigonia'
- 'Trigonia evansana belongs to Trigonia' according to Meek 1864
- 'Trochocyathus zitteli belongs to Trochocyathus'
- 'Turbinella crassitesta is recombined as Retipirula crassitesta'
- 'Turris plicata belongs to Turris'
- 'Turritella andersoni belongs to Turritella'
- 'Turritella chicoensis belongs to Turritella'
- 'Turritella infragranulata belongs to Turritella' according to Gabb 1864
- 'Turritella maccreadyi belongs to Turritella'
- 'Turritella martinezensis belongs to Turritella'
- 'Turritella pachecoensis belongs to Turritella'
- 'Turritella reversa belongs to Turritella'
- 'Turritella saffordii is a subjective synonym of Turritella pachecoensis'
- 'Turritella simiensis belongs to Turritella'
- 'Turritella uvasana belongs to Turritella'
- 'Venericardia planicosta venturensis belongs to Venericardia planicosta'
- 'Venus (Mercenaria) varians is recombined as Chione varians'