| Nominal Species (n = 230) | Present allocation (n = 227) | Ref. |
|---|---|---|
| Circulus abruptus Rubio & Rolán, 2022 | Circulus abruptus | 3477 |
| Circulus adrianrubioi Rubio & Rolán, 2022 | Circulus adrianrubioi | 3477 |
| Vitrinella alaskensis Bartsch, 1907 | Vitrinella alaskensis | 19 |
| Circulus alcocerae Rubio & Rolán, 2022 | Circulus alcocerae | 3477 |
| Teinostoma amplectans Carpenter, 1857 | Teinostoma amplectans | 19 |
| Circulus andreae Rubio & Rolán, 2022 | Circulus andreae | 3477 |
| Circulus andreiasalvadorae Rubio & Rolán, 2022 | Circulus andreiasalvadorae | 3477 |
| Vitrinella anneliesae Jong & Coomans, 1988 | Vitrinella anneliesae | 3477 |
| Circulus antoniae Rubio & Rolán, 2022 | Circulus antoniae | 3477 |
| Solariorbis arnoldi Bartsch, 1927 | Solariorbis arnoldi | 19 |
| Circulus asper Rubio & Rolán, 2022 | Circulus asper | 3477 |
| Climacia athleenae Pilsbry & McGinty, 1946 | Anticlimax athleenae | 83435 |
| Circulus austerus Rubio & Rolán, 2022 | Circulus austerus | 3477 |
| Circulus australesensis Rubio & Rolán, 2022 | Circulus australesensis | 3477 |
| Circulus aximicrostriatus Rubio & Rolán, 2022 | Circulus aximicrostriatus | 3477 |
| Pseudomalaxis balesi Pilsbry & McGinty, 1945 | Pleuromalaxis balesi | 83435 |
| Teinostoma bartschi Vanatta, 1913 | Solariorbis bartschi | 83435 |
| Circulus basislevis Rubio & Rolán, 2022 | Circulus basislevis | 3477 |
| Vitrinella berryi Bartsch, 1907 | Vitrinella berryi | 19 |
| Teinostoma bibbianum Dall, 1919 | Teinostoma bibbianum | 19 |
| Vitrinella bicaudata Pilsbry & McGinty, 1946 | Vitrinella bicaudata | 19 |
| Circulus binodular Rubio & Rolán, 2022 | Circulus binodular | 3477 |
| Teinostoma biscaynense Pilsbry & McGinty, 1945 | Teinostoma biscaynense | 19 |
| Vitrinella blakei Rehder, 1944 | Vitrinella blakei | 19 |
| Circulus boucheti Rubio & Rolán, 2022 | Circulus boucheti | 3477 |
| Circulus cachoi Rubio & Rolán, 2022 | Circulus cachoi | 3477 |
| Circulus caledonicus Rubio & Rolán, 2022 | Circulus caledonicus | 3477 |
| Circulus carinamagna Rubio & Rolán, 2022 | Circulus carinamagna | 3477 |
| Trochus carinata d'Orbigny, 1842 | Vitrinella carinata | 83435 |
| Teinostoma carinicallus Pilsbry & McGinty, 1946 | Teinostoma carinicallus | 19 |
| Circulus carmensalasae Rubio & Rolán, 2022 | Circulus carmensalasae | 3477 |
| Circulus catenatus Rubio & Rolán, 2022 | Circulus catenatus | 3477 |
| Vitrinella cerion Dall, 1927 | Vitrinella cerion | 19 |
| Circulus chefyae Rubio & Rolán, 2022 | Circulus chefyae | 3477 |
| Cyclostrema cistronium Dall, 1889 | Aorotrema cistronium | 83435 |
| Teinostoma clavium Pilsbry & McGinty, 1945 | Teinostoma clavium | 19 |
| Teinostoma cocolitoris Pilsbry & McGinty, 1945 | Teinostoma cocolitoris | 19 |
| Circulus colluvius Rubio & Rolán, 2022 | Circulus colluvius | 3477 |
| Vitrinella columbiana Bartsch, 1921 | Vitrinella columbiana | 19 |
| Circulus communis Rubio & Rolán, 2022 | Circulus communis | 3477 |
| Circulus convexstriatus Rubio & Rolán, 2022 | Circulus convexstriatus | 3477 |
| Circulus convexus Rubio & Rolán, 2022 | Circulus convexus | 3477 |
| Circulus coronatus Rubio & Rolán, 2022 | Circulus coronatus | 3477 |
| Circulus cosmius Bartsch, 1907 | Circulus cosmius | 19 |
| Circulus cuatricarinatus Rubio & Rolán, 2022 | Circulus cuatricarinatus | 3477 |
| Circulus cubanus Pilsbry & Aguaya, 1933 | Circulus cubanus | 19 |
| Circulus cultrorum Rubio & Rolán, 2022 | Circulus cultrorum | 3477 |
| Circulus cumtectum Rubio & Rolán, 2022 | Circulus cumtectum | 3477 |
| Circulus dalli Bush, 1897 | Circulus dalli | 19 |
| Scissilabra dalli Bartsch, 1907 | Scissilabra dalli | 19 |
| Circulus davidruedai Rubio & Rolán, 2022 | Circulus davidruedai | 3477 |
| Circulus decemcords Rubio & Rolán, 2022 | Circulus decemcords | 3477 |
| Circulus delicatus Rubio & Rolán, 2022 | Circulus delicatus | 3477 |
| Circulus depressus Rubio & Rolán, 2022 | Circulus depressus | 3477 |
| Episcynia devexa Keen, 1946 | Episcynia devexa | 19 |
| Circulus discordant Rubio & Rolán, 2022 | Circulus discordant | 3477 |
| Circulus discretus Rubio & Rolán, 2022 | Circulus discretus | 3477 |
| Circulus dispersus Rubio & Rolán, 2022 | Circulus dispersus | 3477 |
| Vitrinella elegans Olsson & McGinty, 1958 | Vitrinella elegans | 19 |
| Circulus ellenstrongae Rubio & Rolán, 2022 | Circulus ellenstrongae | 3477 |
| Aorotrema erraticum Pilsbry & McGinty, 1945 | Aorotrema erraticum | 19 |
| Vitrinella eshnaurae Bartsch, 1907 | Vitrinella eshnaurae | 19 |
| Cyclostrema euchilopteron Melvill & Standen, 1903 | Circulus euchilopteron | 3477 |
| Circulus excellent Rubio & Rolán, 2022 | Circulus excellent | 3477 |
| Circulus exempli Rubio & Rolán, 2022 | Circulus exempli | 3477 |
| Circulus extensus Rubio & Rolán, 2022 | Circulus extensus | 3477 |
| Teinostoma fernandesi Rubio & Rolan, 1991 | Teinostoma fernandesi | 7800 |
| Circulus fijiensis Rubio & Rolán, 2022 | Circulus fijiensis | 3477 |
| Vitrinella filifera Pilsbry & McGinty, 1946 | Vitrinella filifera | 19 |
| Circulus fininspicor Rubio & Rolán, 2022 | Circulus fininspicor | 3477 |
| Vitrinella floridana Pilsbry & McGinty, 1946 | Vitrinella floridana | 19 |
| Circulus fundatus Rubio & Rolán, 2022 | Circulus fundatus | 3477 |
| Teinostoma funiculatum Rubio & Rolan, 1991 | Teinostoma funiculatum | 7800 |
| Vitrinella georgiana Dall, 1927 | Vitrinella georgiana | 19 |
| Circulus gofasi Rubio & Rolán, 2022 | Circulus gofasi | 3477 |
| Teinostoma goniogyrus Pilsbry & McGinty, 1945 | Teinostoma goniogyrus | 19 |
| Circulus gracilis Rubio & Rolán, 2022 | Circulus gracilis | 3477 |
| Cyclostrema gyalum Melvill, 1904 | Circulus gyalum | 3477 |
| Circulus harrietwoodae Rubio & Rolán, 2022 | Circulus harrietwoodae | 3477 |
| Circulus hasegawai Rubio & Rolán, 2022 | Circulus hasegawai | 3477 |
| Vitrinella helicoidea Adams, 1850 | Vitrinella helicoidea | 19 |
| Vitrinella hemphilli Vanatta, 1913 | Vitrinella hemphilli | 19 |
| Lydiphnis hendersoni Dall, 1927 | Circulus hendersoni | 83435 |
| Circulus horroi Rubio & Rolán, 2022 | Circulus horroi | 3477 |
| Teinostoma incertum Pilsbry & McGinty, 1945 | Teinostoma incertum | 19 |
| Circulus inchoatus Rubio & Rolán, 2022 | Circulus inchoatus | 3477 |
| Circulus inesae Rubio & Rolán, 2022 | Circulus inesae | 3477 |
| Solariorbis infracarinata Rehder, 1944 | Solariorbis infracarinata | 19 |
| Trochus inornata d'Orbigny, 1842 | Episcynia inornata | 83435 |
| Vitrinella interruptus Adams, 1850 | Parviturboides interruptus | 83435 |
| Circulus irregularis Rubio & Rolán, 2022 | Circulus irregularis | 3477 |
| Circulus iustus Rubio & Rolán, 2022 | Circulus iustus | 3477 |
| Circulus juanmai Rubio & Rolán, 2022 | Circulus juanmai | 3477 |
| Circulus juantrigoi Rubio & Rolán, 2022 | Circulus juantrigoi | 3477 |
| Circulus julioalvarezi Rubio & Rolán, 2022 | Circulus julioalvarezi | 3477 |
| Circulus lenticularis Rubio & Rolán, 2022 | Circulus lenticularis | 3477 |
| Teinostoma lerema Pilsbry & McGinty, 1945 | Teinostoma lerema | 19 |
| Circulus letourneuxi Rubio & Rolán, 2022 | Circulus letourneuxi | 3477 |
| Omalaxis liratus Verrill, 1882 | Circulus liratus | 83435 |
| Teinostoma lituspalmarum Pilsbry & McGinty, 1945 | Teinostoma lituspalmarum | 19 |
| Circulus loyaltiensis Rubio & Rolán, 2022 | Circulus loyaltiensis | 3477 |
| Circulus luciae Rubio & Rolán, 2022 | Circulus luciae | 3477 |
| Circulus luquei Rubio & Rolán, 2022 | Circulus luquei | 3477 |
| Circulus madagascarensis Rubio & Rolán, 2022 | Circulus madagascarensis | 3477 |
| Circulus maestrati Rubio & Rolán, 2022 | Circulus maestrati | 3477 |
| Circulus marcosi Rubio & Rolán, 2022 | Circulus marcosi | 3477 |
| Circulus margaritiformis Dall, 1927 | Circulus margaritiformis | 19 |
| Lydiphnis margaritiformis Dall, 1927 | Circulus margaritiformis | 83435 |
| Circulus maricarmenae Rubio & Rolán, 2022 | Circulus maricarmenae | 3477 |
| Circulus marquesasensis Rubio & Rolán, 2022 | Circulus marquesasensis | 3477 |
| Homalogyra marshalli Sykes, 1925 | Neusas marshalli | 83435 |
| Neusas marshalli Sykes, 1925 | Neusas marshalli | 8774 |
| Vitrinella massarita Dall, 1927 | Vitrinella massarita | 19 |
| Circulus mayottensis Rubio & Rolán, 2022 | Circulus mayottensis | 3477 |
| Vitrinella megastoma Adams, 1850 | Teinostoma megastoma | 83435 |
| Circulus microbliquus Rubio & Rolán, 2022 | Circulus microbliquus | 3477 |
| Circulus microlines Rubio & Rolán, 2022 | Circulus microlines | 3477 |
| Circulus micronodular Rubio & Rolán, 2022 | Circulus micronodular | 3477 |
| Circulus microradiatus Rubio & Rolán, 2022 | Circulus microradiatus | 3477 |
| Circulus microspiralis Rubio & Rolán, 2022 | Circulus microspiralis | 3477 |
| Circulus microstriatus Rubio & Rolán, 2022 | Circulus microstriatus | 3477 |
| Circulus microtuberculatus Rubio & Rolán, 2022 | Circulus microtuberculatus | 3477 |
| Circulus minituber Rubio & Rolán, 2022 | Circulus minituber | 3477 |
| Pseudorotella minusculum Bush, 1897 | Teinostoma minusculum | 83435 |
| Circulus minutispiralis Rubio & Rolán, 2022 | Circulus minutispiralis | 3477 |
| Circulus monocoronatus Rubio & Rolán, 2022 | Circulus monocoronatus | 3477 |
| Circulus monteiroi Rubio & Rolán, 2022 | Circulus monteiroi | 3477 |
| Vitrinella mooreanus Vanatta, 1904 | Solariorbis mooreanus | 83435 |
| Circulus mortoni Ponder, 1994 | Circulus mortoni | 3477 |
| Circulus mozambiquensis Rubio & Rolán, 2022 | Circulus mozambiquensis | 3477 |
| Circulus multicordatus Rubio & Rolán, 2022 | Circulus multicordatus | 3477 |
| Circulus multiradiatus Rubio & Rolán, 2022 | Circulus multiradiatus | 3477 |
| Circulus murilloi Rubio & Rolán, 2022 | Circulus murilloi | 3477 |
| Teinostoma nesaeum Pilsbry & McGinty, 1945 | Teinostoma nesaeum | 19 |
| Circulus nimis Rubio & Rolán, 2022 | Circulus nimis | 3477 |
| Circulus novemlicium Rubio & Rolán, 2022 | Circulus novemlicium | 3477 |
| Circulus obesus Rubio & Rolán, 2022 | Circulus obesus | 3477 |
| Teinostoma obtectum Pilsbry & McGinty, 1945 | Teinostoma obtectum | 19 |
| Vitrinella oldroydi Bartsch, 1907 | Vitrinella oldroydi | 19 |
| Circulus oliveri Rubio & Rolán, 2022 | Circulus oliveri | 3477 |
| Circulus operius Rubio & Rolán, 2022 | Circulus operius | 3477 |
| Circulus ordinatus Rubio & Rolán, 2022 | Circulus ordinatus | 3477 |
| Circulus osfloridum Rubio & Rolán, 2022 | Circulus osfloridum | 3477 |
| Circulus osingens Rubio & Rolán, 2022 | Circulus osingens | 3477 |
| Circulus osmagnum Rubio & Rolán, 2022 | Circulus osmagnum | 3477 |
| Circulus pamilacanensis Rubio & Rolán, 2022 | Circulus pamilacanensis | 3477 |
| Circulus papuaensis Rubio & Rolán, 2022 | Circulus papuaensis | 3477 |
| Circulus parallelus Rubio & Rolán, 2022 | Circulus parallelus | 3477 |
| Cochliolepis parasitica Stimpson, 1858 | Cochliolepis parasitica | 19 |
| Circulus parcus Rubio & Rolán, 2022 | Circulus parcus | 3477 |
| Teinostoma parvicallum Pilsbry & McGinty, 1945 | Teinostoma parvicallum | 19 |
| Circulus paucicordatus Rubio & Rolán, 2022 | Circulus paucicordatus | 3477 |
| Circulus penasi Rubio & Rolán, 2022 | Circulus penasi | 3477 |
| Circulus philippinensis Rubio & Rolán, 2022 | Circulus philippinensis | 3477 |
| Circulus pilartarazonae Rubio & Rolán, 2022 | Circulus pilartarazonae | 3477 |
| Teinostoma pilsbryi Mcginty, 1945 | Teinostoma pilsbryi | 19 |
| Circulus pinsensis Rubio & Rolán, 2022 | Circulus pinsensis | 3477 |
| Circulus planatus Rubio & Rolán, 2022 | Circulus planatus | 3477 |
| Circulus pluripunctus Rubio & Rolán, 2022 | Circulus pluripunctus | 3477 |
| Circulus plurispiralis Rubio & Rolán, 2022 | Circulus plurispiralis | 3477 |
| Cyclostrema pontogenes Schwengel & McGinty, 1942 | Aorotrema pontogenes | 83435 |
| Vitrinella praecox Pilsbry & McGinty, 1946 | Vitrinella praecox | 19 |
| Circulus protobrevis Rubio & Rolán, 2022 | Circulus protobrevis | 3477 |
| Circulus prototuber Rubio & Rolán, 2022 | Circulus prototuber | 3477 |
| Circulus proximus Rubio & Rolán, 2022 | Circulus proximus | 3477 |
| Circulus pseudocarinatus Rubio & Rolán, 2022 | Circulus pseudocarinatus | 3477 |
| Circulus pudicus Rubio & Rolán, 2022 | Circulus pudicus | 3477 |
| Circulus punctuslinealis Rubio & Rolán, 2022 | Circulus punctuslinealis | 3477 |
| Circulus quinoneroi Rubio & Rolán, 2022 | Circulus quinoneroi | 3477 |
| Circulus retroconvexus Rubio & Rolán, 2022 | Circulus retroconvexus | 3477 |
| Circulus reunionensis Rubio & Rolán, 2022 | Circulus reunionensis | 3477 |
| Vitrinella rhyssa Dall, 1927 | Vitrinella rhyssa | 19 |
| Circulus robustus Rubio & Rolán, 2022 | Circulus robustus | 3477 |
| Circulus rolanorum Rubio & Rolán, 2022 | Circulus rolanorum | 3477 |
| Circulus rosapereirae Rubio & Rolán, 2022 | Circulus rosapereirae | 3477 |
| Circulus rosenbergi Rubio & Rolán, 2022 | Circulus rosenbergi | 3477 |
| Circulus rossellinus Dall, 1919 | Circulus rossellinus | 19 |
| Circulus rudis Rubio & Rolán, 2022 | Circulus rudis | 3477 |
| Circulus rugospiralis Rubio & Rolán, 2022 | Circulus rugospiralis | 3477 |
| Circulus rusticulus Rubio & Rolán, 2022 | Circulus rusticulus | 3477 |
| Circulus rusticus Rubio & Rolán, 2022 | Circulus rusticus | 3477 |
| Circulus sandrogorii Rubio & Rolán, 2022 | Circulus sandrogorii | 3477 |
| Teinostoma sapiella Dall, 1919 | Teinostoma sapiella | 19 |
| Circulus scaber Rubio & Rolán, 2022 | Circulus scaber | 3477 |
| Circulus sculpturatus Rubio & Rolán, 2022 | Circulus sculpturatus | 3477 |
| Vitrinella semisculptus Olsson & McGinty, 1958 | Circulus semisculptus | 83435 |
| Trochus semistriatum d'Orbigny, 1842 | Teinostoma semistriatum | 83435 |
| Circulus serratus Rubio & Rolán, 2022 | Circulus serratus | 3477 |
| Circulus sexangulae Rubio & Rolán, 2022 | Circulus sexangulae | 3477 |
| Vitrinella shimeri Clapp, 1914 | Solariorbis shimeri | 83435 |
| Circulus similiter Rubio & Rolán, 2022 | Circulus similiter | 3477 |
| Circulus simongrovei Rubio & Rolán, 2022 | Circulus simongrovei | 3477 |
| Circulus simpliciter Rubio & Rolán, 2022 | Circulus simpliciter | 3477 |
| Circulus sixcarinatus Rubio & Rolán, 2022 | Circulus sixcarinatus | 3477 |
| Vitrinella smithi Bartsch, 1927 | Vitrinella smithi | 19 |
| Circulus societyensis Rubio & Rolán, 2022 | Circulus societyensis | 3477 |
| Circulus solomonensis Rubio & Rolán, 2022 | Circulus solomonensis | 3477 |
| Circulus speciosus Rubio & Rolán, 2022 | Circulus speciosus | 3477 |
| Circulus spiralis Rubio & Rolán, 2022 | Circulus spiralis | 3477 |
| Vitrinella stearnsi Bartsch, 1907 | Vitrinella stearnsi | 19 |
| Cochliolepis striata Dall, 1889 | Cochliolepis striata | 19 |
| Circulus structus Rubio & Rolán, 2022 | Circulus structus | 3477 |
| Circulus suavis Rubio & Rolán, 2022 | Circulus suavis | 3477 |
| Circulus subradiatus Rubio & Rolán, 2022 | Circulus subradiatus | 3477 |
| Circulus subsuturalis Rubio & Rolán, 2022 | Circulus subsuturalis | 3477 |
| Circulus susomendezi Rubio & Rolán, 2022 | Circulus susomendezi | 3477 |
| Circulus suspensus Rubio & Rolán, 2022 | Circulus suspensus | 3477 |
| Circulus suturcaten Rubio & Rolán, 2022 | Circulus suturcaten | 3477 |
| Circulus taiwanensis Rubio & Rolán, 2022 | Circulus taiwanensis | 3477 |
| Circulus templadoi Rubio & Rolán, 2022 | Circulus templadoi | 3477 |
| Circulus tenuiradiatus Rubio & Rolán, 2022 | Circulus tenuiradiatus | 3477 |
| Vitrinella terminalis Pilsbry & McGinty, 1946 | Vitrinella terminalis | 19 |
| Vitrinella texana Moore, 1965 | Vitrinella texana | 19 |
| Vitrinella texanus Moore, 1965 | Circulus texanus | 83435 |
| Vitrinella tiburonensis Durham, 1942 | Vitrinella tiburonensis | 19 |
| Circulus tongaensis Rubio & Rolán, 2022 | Circulus tongaensis | 3477 |
| Circulus translucens Dall, 1927 | Circulus translucens | 19 |
| Lydiphnis translucens Dall, 1927 | Circulus translucens | 83435 |
| Circulus troncosoi Rubio & Rolán, 2022 | Circulus troncosoi | 3477 |
| Vitrinella tryoni Bush, 1897 | Vitrinella tryoni | 19 |
| Circulus tuberopertus Rubio & Rolán, 2022 | Circulus tuberopertus | 3477 |
| Circulus umbilicordatus Rubio & Rolán, 2022 | Circulus umbilicordatus | 3477 |
| Circulus urgorrii Rubio & Rolán, 2022 | Circulus urgorrii | 3477 |
| Circulus valdesculpturatus Rubio & Rolán, 2022 | Circulus valdesculpturatus | 3477 |
| Circulus vanuatuensis Rubio & Rolán, 2022 | Circulus vanuatuensis | 3477 |
| Teinostoma vayssierei Couturier, 1907 | Teinostoma vayssierei | 3477 |
| Circulus victormonzoi Rubio & Rolán, 2022 | Circulus victormonzoi | 3477 |
| Circulus villacampae Rubio & Rolán, 2022 | Circulus villacampae | 3477 |
| Circulus virginieherosae Rubio & Rolán, 2022 | Circulus virginieherosae | 3477 |
| Vitrinella williamsoni Dall, 1892 | Vitrinella williamsoni | 19 |