Opinions from J. G. Cooper 1894
- 'Agasoma (Trophosycon) belongs to Agasoma'
- 'Agasoma (Trophosycon) kernianum belongs to Agasoma (Trophosycon)'
- 'Agasoma barkerianum belongs to Agasoma'
- 'Amnicola yatesiana belongs to Amnicola'
- 'Ancilla (Oliverato) belongs to Ancilla'
- 'Ancilla (Oliverato) californica belongs to Ancilla (Oliverato)'
- 'Anodonta lignitica belongs to Anodonta'
- 'Astarte semidentata belongs to Astarte'
- 'Bittium longissimum belongs to Bittium'
- 'Bulla assimilata belongs to Bulla'
- 'Calliostoma kempiana belongs to Calliostoma'
- 'Cancellaria irelaniana belongs to Cancellaria'
- 'Cerithium fairbanksi belongs to Cerithium'
- 'Cordiera gracillima belongs to Cordiera'
- 'Crassatella lomana belongs to Crassatella'
- 'Crenella santana belongs to Crenella'
- 'Cucullaea bowersiana belongs to Cucullaea'
- 'Drillia ullreyana belongs to Drillia'
- 'Fusus supraplanus belongs to Fusus'
- 'Lymnaea contracosta belongs to Lymnaea'
- 'Mangilia suturalis belongs to Mangilia'
- 'Megerlia dubitanda belongs to Megerlia'
- 'Mytilus dichotomus belongs to Mytilus'
- 'Ocinebra poulsoni belongs to Ocinebra'
- 'Petricola pedroana is recombined as Cypricardia pedroana'
- 'Pinna venturensis belongs to Pinna'
- 'Planorbis pabloanus belongs to Planorbis'
- 'Pleurotoma decipiens belongs to Pleurotoma'
- 'Pleurotoma perkinsiana belongs to Pleurotoma'
- 'Potamides carbonicola belongs to Potamides'
- 'Potamides davisiana belongs to Potamides'
- 'Scalaria hindsii is recombined as Scala hindsi'
- 'Siphonaria capuloides belongs to Siphonaria'
- 'Stomatia intermedia belongs to Stomatia'
- 'Surcula crenatospira belongs to Surcula'
- 'Surcula inconstans belongs to Surcula'
- 'Surcula monilifera belongs to Surcula'
- 'Terebra wattsiana belongs to Terebra'
- 'Tornatella normalis belongs to Tornatella'
- 'Tornatina erratica belongs to Tornatina'
- 'Turcicula bairdii is corrected as Turcicula bairdi and belongs to Turcicula'