Opinions from M. C. Perrilliat 1972
- 'Adeorbis guppyi is recombined as Cyclostremiscus (Ponocyclus) guppyi'
- 'Architectonica belongs to Architectonicidae'
- 'Architectonica (Pseudotorinia) euprepes belongs to Architectonica (Pseudotorinia)' according to Woodring 1928
- 'Architectonica (Pseudotorinia) euprepes belongs to Architectonica (Pseudotorinia)'
- 'Architectonica nobilis is recombined as Architectonica (Architectonica) nobilis'
- 'Caecum belongs to Caecidae'
- 'Caecum (Defolinia) belongs to Caecum' according to Weisbord 1962
- 'Caecum (Defolinia) is an invalid subgroup of Caecum'
- 'Caecum (Defolinia) tomaculum is recombined as Caecum tomaculum'
- 'Caecum (Defolinia) tomaculum belongs to Caecum (Defolinia)' according to Weisbord 1962
- 'Caecum anellifer belongs to Caecum' according to Pilsbry and Johnson 1917
- 'Caecum anellifer belongs to Caecum'
- 'Caecum chipolanum belongs to Caecum' according to Gardner 1947
- 'Caecum chipolanum belongs to Caecum'
- 'Caecum constrictum belongs to Caecum' according to Gabb 1873
- 'Caecum constrictum is recombined as Caecum (Meioceras) constrictum' according to Pilsbry 1922
- 'Caecum constrictum is recombined as Meioceras constrictum'
- 'Caecum mexicanum belongs to Caecum' according to Collins 1937
- 'Caecum mexicanum belongs to Caecum'
- 'Caecum veracruzanum belongs to Caecum' according to Collins 1937
- 'Calliostoma belongs to Calliostomatinae'
- 'Calliostoma (Calliostoma) belongs to Calliostoma' according to Swainson 1840
- 'Calliostoma (Calliostoma) belongs to Calliostoma'
- 'Calliostoma (Calliostoma) pulcher mexicana belongs to Calliostoma (Calliostoma) pulcher'
- 'Calliostoma pulcher belongs to Calliostoma' according to C. B. Adams 1850
- 'Calliostoma pulcher is recombined as Calliostoma (Calliostoma) pulcher'
- 'Calliostomatinae belongs to Trochidae'
- 'Circulus was reranked as Vitrinella (Circulus) and belongs to Vitrinella' according to Maury 1917
- 'Circulus domingensis belongs to Circulus' according to Pilsbry and Johnson 1917
- 'Circulus domingensis is recombined as Cyclostremiscus (Ponocyclus) domingensis'
- 'Crepitacella belongs to Rissoidae'
- 'Cyclostrema pentagona belongs to Cyclostrema' according to Gabb 1873
- 'Cyclostrema pentagona is recombined as Vitrinella pentagona' according to Gabb 1881
- 'Cyclostrema pentagona is recombined as Circulus pentagona' according to Pilsbry 1922
- 'Cyclostrema pentagona is recombined as Circulus pentagonus' according to Woodring 1928
- 'Cyclostrema pentagona is recombined as Cyclostremiscus (Ponocyclus) pentagonus' according to Woodring 1957
- 'Cyclostrema pentagona is recombined as Cyclostremiscus (Ponocyclus) pentagonus'
- 'Cyclostrema striata is recombined as Vitrinella (Circulus) striata' according to Maury 1917
- 'Cyclostrema striata belongs to Cyclostrema' according to Gabb 1873
- 'Cyclostrema striata is recombined as Vitrinella striata'
- 'Cyclostremiscus belongs to Vitrinellidae'
- 'Didianema belongs to Vitrinellidae'
- 'Didianema tytha belongs to Didianema' according to Woodring 1928
- 'Diodora belongs to Diodorinae'
- 'Emarginulidae was reranked as the family Emarginulinae and belongs to Fissurellidae'
- 'Fissurella belongs to Fissurellidae'
- 'Fissurella (Fissurella) belongs to Fissurella' according to Bruguière 1789
- 'Fissurella (Fissurella) mexicana belongs to Fissurella (Fissurella)'
- 'Fissurella cayenensis is recombined as Diodora cayenensis'
- 'Fissuridea henekeni belongs to Fissuridea' according to Maury 1917
- 'Fissuridea henekeni is recombined as Diodora cayenensis henekeni'
- 'Hemitoma belongs to Emarginulinae'
- 'Idioraphe was reranked as Teinostoma (Idioraphe) and belongs to Teinostoma'
- 'Liotia belongs to Liotiinae'
- 'Liotia woodringi belongs to Liotia'
- 'Liotiinae belongs to Turbinidae'
- 'Margaritinae belongs to Trochidae'
- 'Meioceras belongs to Caecidae'
- 'Meioceras was reranked as Caecum (Meioceras) and belongs to Caecum' according to Pilsbry 1922
- 'Melanopsis cepula is recombined as Crepitacella cepula'
- 'Microgaza belongs to Margaritinae'
- 'Microgaza (Microgaza) belongs to Microgaza' according to Dall 1881
- 'Microgaza (Microgaza) santarosaensis belongs to Microgaza (Microgaza)'
- 'Microgaza rotella belongs to Microgaza' according to Dall 1881
- 'Nereina was reranked as Neritina (Nereina) and belongs to Neritina'
- 'Neritina belongs to Neritinae'
- 'Neritina (Smaragdia) viridemaris belongs to Neritina (Smaragdia)' according to Maury 1917
- 'Neritina (Smaragdia) viridemaris is recombined as Smaragdia (Smaragdia) viridis viridemaris' according to Woodring 1928
- 'Neritina (Smaragdia) viridemaris is recombined as Smaragdia (Smaragdia) viridis viridemaris'
- 'Neritina viridis belongs to Neritina' according to Linnaeus 1758
- 'Neritina viridis is recombined as Smaragdia (Smaragdia) viridis' according to Woodring 1928
- 'Neritina viridis is recombined as Smaragdia (Smaragdia) viridis'
- 'Neritina woodwardi is recombined as Neritina (Nereina) woodwardi' according to Woodring 1928
- 'Neritina woodwardi is recombined as Neritina (Nereina) woodwardi'
- 'Neritina woodwardi belongs to Neritina' according to Guppy 1866
- 'Neritinae belongs to Neritidae'
- 'Ponocyclus was reranked as Cyclostremiscus (Ponocyclus) and belongs to Cyclostremiscus'
- 'Pseudorotella was reranked as Teinostoma (Pseudorotella) and belongs to Teinostoma'
- 'Pseudotorinia was reranked as Architectonica (Pseudotorinia) and belongs to Architectonica'
- 'Rissoa belongs to Rissoidae'
- 'Rissoa epulata belongs to Rissoa' according to Pilsbry and Johnson 1917
- 'Rissoa epulata belongs to Rissoa'
- 'Smaragdia belongs to Smaragdiinae'
- 'Smaragdia was reranked as Neritina (Smaragdia) and belongs to Neritina' according to Maury 1917
- 'Smaragdia (Smaragdia) belongs to Smaragdia' according to Issel 1869
- 'Smaragdia (Smaragdia) belongs to Smaragdia'
- 'Smaragdiinae belongs to Neritidae'
- 'Solariorbis belongs to Vitrinellidae'
- 'Solariorbis boardmani belongs to Solariorbis'
- 'Solariorbis hypolius belongs to Solariorbis' according to Pilsbry and Olsson 1952
- 'Solariorbis hypolius belongs to Solariorbis'
- 'Teinostoma belongs to Vitrinellidae'
- 'Teinostoma (Pseudorotella) stemonium belongs to Teinostoma (Pseudorotella)' according to Woodring 1957
- 'Teinostoma (Pseudorotella) stemonium belongs to Teinostoma (Pseudorotella)'
- 'Teinostoma chipolanum belongs to Teinostoma' according to Dall 1892
- 'Teinostoma chipolanum is recombined as Teinostoma (Idioraphe) chipolanum'
- 'Teinostoma mekon belongs to Teinostoma' according to Gardner 1947
- 'Teinostoma mekon is recombined as Teinostoma (Idioraphe) mekon'
- 'Thiarinella was reranked as Metulella (Thiarinella) and belongs to Metulella'
- 'Turbo terebra is recombined as Turritella terebra'
- 'Turritella belongs to Turritellidae'
- 'Turritella robusta abrupta is recombined as Turritella abrupta'
- 'Turritella subgrundifera belongs to Turritella' according to Dall 1892
- 'Turritella subgrundifera belongs to Turritella'
- 'Turritella tuxtepecensis belongs to Turritella'
- 'Vermicularia belongs to Turritellidae'
- 'Vermicularia [misspelled as Vermiculus] belongs to Gastropoda' according to Philippi 1836
- 'Vermiculus spiratus is recombined as Vermicularia spirata'
- 'Vitrinella belongs to Vitrinellinae'
- 'Vitrinella helicoidea belongs to Vitrinella' according to C. B. Adams 1850
- 'Vitrinella helicoidea belongs to Vitrinella' according to Bush 1897
- 'Vitrinella obliquestriata belongs to Vitrinella' according to Gabb 1881
- 'Vitrinella obliquestriata belongs to Vitrinella'