Acmaturris metria (Dall, 1903) accepted as Vitricythara metria (Dall, 1903) (additional source)
Acteocina canaliculata (Say, 1826) (additional source)
Acteocina coensis Mansfield, 1930 † (original description)
Acteon vaughani Mansfield, 1930 † (original description)
Alabina adamsi floridana Mansfield, 1930 † (original description)
Alabina adamsi harveyensis Mansfield, 1930 † (original description)
Alabina adamsi leonensis Mansfield, 1930 † (original description)
Alectrion alumensis (Olsson, 1916) † (basis of record)
Alectrion consensa harveyensis Mansfield, 1930 † accepted as Alectrion consensus harveyensis Mansfield, 1930 † accepted as Nassarius consensus (Ravenel, 1861) (original description)
Alectrion consensa leonensis Mansfield, 1930 † accepted as Alectrion consensus leonensis Mansfield, 1930 † accepted as Nassarius consensus (Ravenel, 1861) (original description)
Alectrion cornelliana (Olsson, 1914) † (basis of record)
Alectrion floridana Mansfield, 1930 † (original description)
Alectrion quadridentata Mansfield, 1930 † (original description)
Amnicola floridana var. convexa Pilsbry, 1892 accepted as Floridobia floridana (Frauenfeld, 1863) (additional source)
Anachis camax coensis Mansfield, 1930 † (original description)
Anachis clappi Mansfield, 1930 † (original description)
Anachis wieserae Mansfield, 1930 † (original description)
Architectonica granulata (Lamarck, 1816) accepted as Architectonica nobilis Röding, 1798 (additional source)
Architectonica nuperta watsonensis Mansfield, 1930 † (original description)
Aurinia mutabilis (Conrad, 1834) † accepted as Volutifusus mutabilis (Conrad, 1834) † (basis of record)
Brachycythara turrita Mansfield, 1930 † (original description)
Bullaria Rafinesque, 1815 accepted as Bulla Linnaeus, 1758 (additional source)
Busycon maximum alumense Mansfield, 1930 † (original description)
Busycon maximum rapum (Heilprin, 1887) † (basis of record)
Busycon maximum tudiculum (Dall, 1890) † (basis of record)
Busycon perversum (Linnaeus, 1758) accepted as Sinistrofulgur perversum (Linnaeus, 1758) (additional source)
Busycon pyrum aepynotum (Dall, 1890) † (basis of record)
Busycon pyrum libertiense Mansfield, 1930 † (original description)
Busycon pyrum propeincile Mansfield, 1930 † (original description)
Busycon scalarispira Conrad, 1862 † (additional source)
Cadulus floridanus Dall, 1892 † (additional source)
Cadulus thallus (Conrad, 1834) † (basis of record)
Caecum cooperi S. Smith, 1860 (additional source)
Caecum coronellum Dall, 1892 accepted as Caecum cycloferum de Folin, 1867 (additional source)
Caecum floridanum compactum Dall, 1892 † accepted as Caecum floridanum W. Stimpson, 1851 (basis of record)
Caecum regulare P. P. Carpenter, 1858 (additional source)
Calliostoma aluminium Dall, 1892 † (basis of record)
Calliostoma philanthropus pontoni Mansfield, 1930 † (original description)
Calyptraea centralis (Conrad, 1841) (additional source)
Cancellaria (Cancellaria) propevenusta Mansfield, 1930 † represented as Cancellaria propevenusta Mansfield, 1930 † (original description)
Cancellaria (Cancellaria) reticulata leonensis Mansfield, 1930 † represented as Cancellaria reticulata leonensis Mansfield, 1930 † (original description)
Cancellaria (Cancellaria) tabulata J. A. Gardner & Aldrich, 1919 † represented as Cancellaria tabulata J. A. Gardner & Aldrich, 1919 † (basis of record)
Cancellaria (Narona) agria Mansfield, 1930 † (original description)
Cancellaria (Narona) coensis Mansfield, 1930 † (original description)
Cancellaria (Trigonostoma) perspectiva alumensis Mansfield, 1930 † (original description)
Cancellaria (Trigonostoma) tenera (R. A. Philippi, 1848) represented as Trigonostoma tenerum (R. A. Philippi, 1848) accepted as Ventrilia tenera (R. A. Philippi, 1848) (basis of record)
Cantharus watsonensis Mansfield, 1930 † (original description)
Cerithium floridanum leonensis Mansfield, 1930 † accepted as Cerithium atratum (Born, 1778) (original description)
Cerithium harveyensis Mansfield, 1930 † (original description)
Circulus gunteri Mansfield, 1930 † (original description)
Circulus leonensis Mansfield, 1930 † (original description)
Clathrodrillia anteaphanitoma Mansfield, 1930 † (original description)
Clathrodrillia emmonsi (Olsson, 1916) † (basis of record)
Clathrodrillia emmonsi hosfordensis Mansfield, 1930 † (original description)
Clathrodrillia gracilina Mansfield, 1930 † (original description)
Clathrodrillia podagrina (Dall, 1890) † (basis of record)
Conus adversarius Conrad, 1840 † (basis of record)
Conus floridanus Gabb, 1869 accepted as Conus anabathrum Crosse, 1865 (additional source)
Conus harveyensis Mansfield, 1930 † (original description)
Conus testudinarius leonensis Mansfield, 1930 † (original description)
Crassispira antealesidota Mansfield, 1930 † (original description)
Crepidula aculeata var. costata S. G. Morton, 1829 † (basis of record)
Crepidula aculeata var. spinosa Conrad, 1843 † (basis of record)
Crepidula fornicata (Linnaeus, 1758) (additional source)
Crepidula fornicata cymbaeformis Conrad, 1844 † accepted as Crepidula cymbaeformis Conrad, 1844 † (basis of record)
Crepidula fornicata rostrata Conrad, 1870 † (basis of record)
Crepidula plana Say, 1822 (additional source)
Crucibulum (Crucibulum) auriculum (Gmelin, 1791) † accepted as Crucibulum auricula (Gmelin, 1791) (basis of record)
Crucibulum (Crucibulum) auriculum imbricatum (G. B. Sowerby I, 1824) represented as Crucibulum auriculum imbricatum (G. B. Sowerby I, 1824) (basis of record)
Crucibulum (Dispotaea) constricta (Conrad, 1942) (basis of record)
Crucibulum (Dispotaea) multilineata (Conrad, 1841) † (basis of record)
Cyclostrema bartschi Mansfield, 1930 † accepted as Cyclostremiscus bartschi (Mansfield, 1930) † (original description)
Cylichnella jacksonensis Mansfield, 1930 † (original description)
Cymatium (Linatella) floridanum Mansfield, 1930 † accepted as Linatella caudata (Gmelin, 1791) (original description)
Cymatosyrinx lunata (H. C. Lea, 1843) † (additional source)
Cymatosyrinx lunata aepytuberculata Mansfield, 1930 † (original description)
Cymatosyrinx lunata porrecta Mansfield, 1930 † (original description)
Cymatosyrinx propeaepynota Mansfield, 1930 † (original description)
Cymatosyrinx propeaepynota libertiensis Mansfield, 1930 † (original description)
Cypraea carolinensis Conrad, 1841 † (additional source)
Cypraeolina dacria (Dall, 1893) † (basis of record)
Dentalium (Dentalium) attentuatum Say, 1824 † represented as Dentalium attentuatum Say, 1824 † (basis of record)
Dentalium (Dentalium) carolinense Conrad, 1862 † represented as Dentalium carolinense Conrad, 1862 † (basis of record)
Dentalium (Dentalium) disparilis leonense Mansfield, 1930 † represented as Dentalium disparilis leonense Mansfield, 1930 † (original description)
Dentalium (Graptacme) pleiocenum Tuomey & Holmes, 1856 † (basis of record)
Dorsanum plicatilum (Böse, 1906) † (basis of record)
Epitonium alumensis Mansfield, 1930 † (original description)
Epitonium turriculum (G. B. Sowerby II, 1844) accepted as Epitonium candeanum (A. d'Orbigny, 1842) (basis of record)
Eupleura caudata brevispira Mansfield, 1930 † (original description)
Eupleura caudata leonensis Mansfield, 1930 † (original description)
Eupleura miocenica Dall, 1890 † (additional source)
Fasciolaria gigantea harveyensis Mansfield, 1930 † (original description)
Fasciolaria rhomboidea W. B. Rogers & H. D. Rogers, 1839 † accepted as Cinctura rhomboidea (W. B. Rogers & H. D. Rogers, 1839) † (additional source)
Fasciolaria sparrowi Emmons, 1858 † (basis of record)
Fissuridea catilliformis alumensis Mansfield, 1930 † (original description)
Fissuridea nucula Dall, 1892 † (additional source)
Fossarus (Isapis) anomala floridana Mansfield, 1930 † accepted as Iselica globosa (H. C. Lea, 1843) (original description)
Fusinus caloosaensis gunteri Mansfield, 1930 † (original description)
Fusinus dalli Mansfield, 1930 † (original description)
Glyphostoma watsoni leonensis Mansfield, 1930 † (original description)

Florida for Cyclostrema bartschi Mansfield, 1930 † 
Florida for Turritella alumensis Mansfield, 1930 † 
Florida for Turritella alumensis gardnerae Mansfield, 1930 † 

 Taxonomic remark

 for Rissoina tersa Mansfield, 1930 †

Originally described as Rissoina (Zebina) tersa. [details]