Opinions from W. C. Mansfield 1925
- 'Adeorbis belongs to Gastropoda'
- 'Adeorbis guppyi belongs to Adeorbis'
- 'Alectrion belongs to Gastropoda'
- 'Alectrion brassoensis belongs to Alectrion'
- 'Amauropsis belongs to Gastropoda'
- 'Amauropsis trinitatensis belongs to Amauropsis'
- 'Ancilla belongs to Gastropoda'
- 'Ancilla brassica belongs to Ancilla' according to Maury 1925
- 'Ancilla brassica belongs to Ancilla'
- 'Ancilla caroniana belongs to Ancilla' according to Maury 1925
- 'Ancilla caroniana belongs to Ancilla'
- 'Ancilla caroniana springvalensis belongs to Ancilla caroniana'
- 'Ancilla paralamellata belongs to Ancilla'
- 'Ancillaria lamellata belongs to Ancillaria' according to Guppy 1866
- 'Ancillaria lamellata is recombined as Ancilla lamellata'
- 'Ancillaria lamellata is recombined as Ancilla lamellata' according to Maury 1925
- 'Borsonia belongs to Gastropoda'
- 'Borsonia (Paraborsonia) brassoensis belongs to Borsonia (Paraborsonia)'
- 'Cadulus belongs to Scaphopoda'
- 'Cadulus caronensis belongs to Cadulus'
- 'Cadulus parianus belongs to Cadulus'
- 'Cadulus parianus belongs to Cadulus' according to Guppy 1896
- 'Caecum belongs to Gastropoda'
- 'Caecum properegulare belongs to Caecum'
- 'Calliostoma belongs to Gastropoda'
- 'Calliostoma attrina belongs to Calliostoma'
- 'Calliostoma rhombotum belongs to Calliostoma'
- 'Cancellaria bulbrooki belongs to Cancellaria'
- 'Cancellaria springvaleensis belongs to Cancellaria'
- 'Closia was reranked as Marginella (Closia) and belongs to Marginella'
- 'Conus manzanillaensis belongs to Conus'
- 'Conus multiliratus walli belongs to Conus multiliratus'
- 'Conus multistriatus is corrected as Conus multiliratus and belongs to Conus'
- 'Conus trinitatensis belongs to Conus'
- 'Cylichna ovumlacerti belongs to Cylichna' according to Guppy 1867
- 'Cylichna ovumlacerti is recombined as Tornatina (Cylichnella) ovumlacerti' according to Dall 1896
- 'Cylichna ovumlacerti is recombined as Cylichnella ovumlacerti'
- 'Cylichnella belongs to Gastropoda'
- 'Cylichnella was reranked as Tornatina (Cylichnella) and belongs to Tornatina' according to Dall 1896
- 'Cypraea belongs to Gastropoda'
- 'Cypraea trinitatensis belongs to Cypraea'
- 'Dentalium belongs to Scaphopoda'
- 'Dentalium cossmannianum belongs to Dentalium' according to Pilsbry and Sharp 1897
- 'Dentalium cossmannianum belongs to Dentalium'
- 'Drillia belongs to Gastropoda'
- 'Drillia consors bullbrooki belongs to Drillia consors'
- 'Drillia consors trinitatensis belongs to Drillia consors'
- 'Drillia daditrina belongs to Drillia'
- 'Drillia inadrina belongs to Drillia'
- 'Drillia inniadda belongs to Drillia'
- 'Drillia manzanillaensis belongs to Drillia'
- 'Drillia niaddrina belongs to Drillia'
- 'Drillia nitrina belongs to Drillia'
- 'Drillia pennyi belongs to Drillia'
- 'Drillia pennyi acaria belongs to Drillia pennyi'
- 'Drillia propefusiformis belongs to Drillia'
- 'Drillia riogurabonis belongs to Drillia' according to Maury 1917
- 'Drillia riogurabonis belongs to Drillia'
- 'Drillia ritanida belongs to Drillia'
- 'Drillia tridadina belongs to Drillia'
- 'Gibberula was reranked as Marginella (Gibberula) and belongs to Marginella'
- 'Glyphostoma belongs to Gastropoda'
- 'Glyphostoma addrina belongs to Glyphostoma'
- 'Glyphostoma caronensis belongs to Glyphostoma'
- 'Glyphostoma triniada belongs to Glyphostoma'
- 'Liotia belongs to Gastropoda'
- 'Liotia machapooreensis belongs to Liotia'
- 'Mangilia belongs to Gastropoda'
- 'Mangilia micropleura belongs to Mangilia' according to Guppy 1867
- 'Mangilia micropleura belongs to Mangilia'
- 'Marginella belongs to Gastropoda'
- 'Marginella (Closia) nitrina belongs to Marginella (Closia)'
- 'Marginella (Gibberula) lachrimula belongs to Marginella (Gibberula)' according to Gould 1862
- 'Marginella (Gibberula) lachrimula is recombined as Marginella lacrimula'
- 'Marginella (Gibberula) trinitatensis belongs to Marginella (Gibberula)'
- 'Marginella (Persicula) propeobesa belongs to Marginella (Persicula)'
- 'Marginella brassoensis belongs to Marginella'
- 'Marginella bulbrooki belongs to Marginella'
- 'Marginella calypsonis belongs to Marginella' according to Maury 1925
- 'Marginella calypsonis belongs to Marginella'
- 'Marginella faba belongs to Marginella' according to Linnaeus 1758
- 'Marginella faba belongs to Marginella'
- 'Marginella guaica belongs to Marginella' according to Maury 1925
- 'Marginella guaica belongs to Marginella'
- 'Marginella guppyana belongs to Marginella'
- 'Marginella solitaria belongs to Marginella' according to Guppy 1896
- 'Marginella solitaria belongs to Marginella'
- 'Marginella solitaria montserratensis belongs to Marginella solitaria'
- 'Marginella springvalensis belongs to Marginella' according to Maury 1925
- 'Marginella springvalensis belongs to Marginella'
- 'Metulella belongs to Gastropoda'
- 'Metulella caronensis belongs to Metulella'
- 'Microdrillia belongs to Gastropoda'
- 'Microdrillia propetrina belongs to Microdrillia'
- 'Microdrillia trina belongs to Microdrillia'
- 'Mitra belongs to Mitridae'
- 'Mitra longa belongs to Mitra'
- 'Mitra longa belongs to Mitra' according to Gabb 1873
- 'Mitra longa couvensis belongs to Mitra longa'
- 'Modulus tamanensis belongs to Modulus'
- 'Natica belongs to Gastropoda'
- 'Natica youngi belongs to Natica' according to Maury 1917
- 'Natica youngi belongs to Natica'
- 'Nerita canrena is recombined as Natica canrena' according to Gabb 1873
- 'Nerita canrena is recombined as Natica canrena'
- 'Paraborsonia was reranked as Borsonia (Paraborsonia) and belongs to Borsonia'
- 'Persicula was reranked as Marginella (Persicula) and belongs to Marginella'
- 'Petaloconchus belongs to Gastropoda'
- 'Petaloconchus alcimus belongs to Petaloconchus'
- 'Phos belongs to Gastropoda'
- 'Phos bullbrooki belongs to Phos'
- 'Phos trinitatensis belongs to Phos'
- 'Pleurotoma (Gemmula) vaningeni is recombined as Drillia vaningeni' according to Brown and Pilsbry 1911
- 'Pleurotoma (Gemmula) vaningeni is recombined as Turris vaningeni'
- 'Pleurotoma albida belongs to Pleurotoma' according to Perry 1811
- 'Pleurotoma albida is recombined as Turris albida'
- 'Pleurotoma consors is recombined as Drillia consors'
- 'Pseudoliva belongs to Gastropoda'
- 'Pseudoliva guppyi belongs to Pseudoliva'
- 'Pseudorotella was reranked as Teinostoma (Pseudorotella) and belongs to Teinostoma'
- 'Ringicula belongs to Gastropoda'
- 'Solenosteira belongs to Gastropoda'
- 'Solenosteira semiglobosa belongs to Solenosteira' according to Guppy 1911
- 'Solenosteira semiglobosa belongs to Solenosteira'
- 'Strombina belongs to Gastropoda'
- 'Strombina walli belongs to Strombina'
- 'Teinostoma (Pseudorotella) caronensis belongs to Teinostoma (Pseudorotella)'
- 'Turricula belongs to Gastropoda'
- 'Turricula bristoli belongs to Turricula' according to Maury 1925
- 'Turricula bristoli is recombined as Vexillum bristoli'
- 'Turricula springvaleensis belongs to Turricula'
- 'Turris belongs to Gastropoda'
- 'Turris brassoensis belongs to Turris'
- 'Turritella altilira belongs to Turritella'
- 'Turritella altilira chiriquiensis belongs to Turritella altilira' according to Olsson 1922
- 'Turritella altilira chiriquiensis belongs to Turritella altilira'
- 'Turritella caparonis belongs to Turritella' according to Maury 1925
- 'Turritella caparonis belongs to Turritella'
- 'Turritella gatunensis belongs to Turritella'
- 'Turritella gatunensis belongs to Turritella' according to Conrad 1857
- 'Turritella gatunensis caronensis belongs to Turritella gatunensis'
- 'Turritella machapoorensis belongs to Turritella' according to Maury 1925
- 'Turritella machapoorensis belongs to Turritella'
- 'Turritella montserratensis belongs to Turritella'
- 'Turritella perattenuata belongs to Turritella' according to Heilprin 1886
- 'Turritella perattenuata belongs to Turritella'
- 'Turritella perattenuata praecellens belongs to Turritella perattenuata' according to Pilsbry and Brown 1917
- 'Turritella perattenuata praecellens belongs to Turritella perattenuata'
- 'Turritella planigyrata belongs to Turritella'
- 'Typhis belongs to Gastropoda'
- 'Typhis sawkinsi belongs to Typhis'
- 'Vermicularia belongs to Gastropoda'
- 'Vexillum belongs to Gastropoda'