| Nominal Species (n = 165) | Present allocation (n = 140) | Ref. |
|---|---|---|
| Opalia abbotti Clench & Turner, 1952 | Opalia abbotti | 19 |
| Scalaria acus Watson, 1883 | Opalia acus | 83435 |
| Scalaria acutum Pfeiffer, 1840 | Epitonium acutum | 83435 |
| Pliciscala ahiparana Powell, 1930 | Opalia ahiparana | 3477 |
| Scalaria albidum d'Orbigny, 1842 | Epitonium albidum | 83435 |
| Cirsotrema amamiense Nakayama, 2000 | Cirsotrema amamiense | 86518 |
| Cylindriscala andrewsi Verrill, 1882 | Opalia andrewsii | 75097 |
| Scalaria andrewsii Verrill, 1882 | Opalia andrewsii | 83435 |
| Scalaria angulatum Say, 1831 | Epitonium angulatum | 83435 |
| Acirsa annectens Powell, 1951 | Papuliscala annectens | 83435 |
| Scala apiculatum Dall, 1889 | Epitonium apiculatum | 83435 |
| Cirsotrema arcella Rehder, 1945 | Cirsotrema arcella | 19 |
| Nystiella atlantis Clench & Turner, 1952 | Nystiella atlantis | 19 |
| Scalaria atomus Smith, 1890 | Epitonium atomus | 83435 |
| Epidendrium aureum Gittenberger & Gittenberger, 2005 | Epidendrium aureum | 86518 |
| Scala aurifila Dall, 1889 | Opalia aurifila | 83435 |
| Epitonium azelotes Dall, 1927 | Narrimania azelotes | 83435 |
| Scala babylonia Dall, 1889 | Epitonium babylonia | 83435 |
| Gregorioiscala barazeri Garcia, 2004 | Gregorioiscala barazeri | 3477 |
| Opalia barbadensis De Boury, 1913 | Opalia pumilio | 75097 |
| Cirsotrema bennettorum Garcia, 2000 | Cirsotrema bennettorum | 3477 |
| Epitonium blainei Clench & Turner, 1953 | Epitonium blainei | 19 |
| Opalia borealis Keep, 1881 | Opalia borealis | 19 |
| Scalaria borealis Lyell, 1841 | Opalia borealis | 83435 |
| Amaea boucheti Garcia, 2003 | Amaea boucheti | 3477 |
| Opalia burchorum DuShane, 1988 | Opalia burchorum | 3477 |
| Opalia burryi Clench & Turner, 1950 | Opalia burryi | 19 |
| Epitonium caamanoi Dall & Bartsch, 1910 | Epitonium caamanoi | 19 |
| Iphitus cancellatus Dautzenberg & Fischer, 1896 | Iphitus cancellatus | 83435 |
| Scalaria candeanum d'Orbigny, 1842 | Epitonium candeanum | 83435 |
| Epitonium canium Dall, 1927 | Opaliopsis canium | 83435 |
| Epitonium catalinae Dall, 1908 | Epitonium catalinae | 19 |
| Opalia chacei Strong, 1937 | Opalia chacei | 19 |
| Epitonium championi Clench & Turner, 1952 | Epitonium championi | 19 |
| Dentiscala clarkei Olsson & Smith, 1951 | Opalia sanjuanensis | 75097 |
| Cirsotrema cloveri Brown, 2002 | Cirsotrema cloveri | 86518 |
| Epitonium columbianum Dall, 1917 | Epitonium columbianum | 19 |
| Scalaria commodum Smith, 1890 | Epitonium commodum | 83435 |
| Epitonium commutata Monterosato, 1877 | Epitonium lamellosum | 75097 |
| Scala concava Dall, 1889 | Opaliopsis concava | 83435 |
| Scalaria confusum Smith, 1890 | Epitonium confusum | 83435 |
| Acirsa costulata Mighels & Adams, 1842 | Acirsa borealis | 75097 |
| Opalia crassicostata Sowerby, 1844 | Opalia hotessieriana | 75097 |
| Epitonium crassicostatum Gittenberger & Gittenberger, 2005 | Epitonium crassicostatum | 86518 |
| Turbo crenata Linnaeus, 1758 | Opalia crenata | 83435 |
| Cirsotrema dalli Rehder, 1945 | Cirsotrema dalli | 19 |
| Scalaria dallianum Verrill & Smith, 1880 | Epitonium dallianum | 83435 |
| Scalaria denticulatum Sowerby II, 1844 | Epitonium denticulatum | 83435 |
| Papuliscala diminuta Castellanos, Rolán & Bartolotta, 1987 | Papuliscala diminuta | 83435 |
| Cirsotrema douvillei Fenoux, 1937 | Boreoscala magellanicum | 3477 |
| Opalia dunkeri de Boury, 1889 | Opalia pumilio | 75097 |
| Scalaria eburneum Potiez & Michaud, 1838 | Epitonium eburneum | 83435 |
| Asperiscala eltanini Dell, 1990 | Asperiscala eltanini | 83435 |
| Cirsotrema emestoilanoi Garcia, 2001 | Cirsotrema emestoilanoi | 86518 |
| Opalia eolis Clench & Turner, 1950 | Opalia eolis | 19 |
| Scala eulitum Dall & Simpson, 1901 | Epitonium eulitum | 83435 |
| Opalia evicta De Boury, 1919 | Opalia evicta | 19 |
| Epitonium fabrizioi Pastorino & Penchaszadeh, 1998 | Epitonium fabrizioi | 83435 |
| Scalaria fenestratum Strebel, 1908 | Cirsotrema fenestratum | 83435 |
| Epitonium ferminense Brown, 2019 | Epitonium ferminense | 3477 |
| Stenacme floridana Pilsbry, 1945 | Alexania floridana | 83435 |
| Scalaria foliaceicosta d'Orbigny, 1842 | Epitonium foliaceicosta | 83435 |
| Solutiscala formosissima Jeffreys, 1884 | Nystiella formosissima | 75097 |
| Epitonium fractum Dall, 1927 | Epitonium fractum | 19 |
| Scala frielei Dall, 1889 | Epitonium frielei | 83435 |
| Opalia garciai Kilburn, 1994 | Opalia garciai | 86518 |
| Cycloscala gazae Kilburn, 1985 | Cycloscala gazae | 86518 |
| Scalaria georgettinum Kiener, 1838 | Epitonium georgettinum | 83435 |
| Asperiscala goldsmithi DuShane, 1988 | Epitonium goldsmithi | 3477 |
| Scalaria greenlandicum Perry, 1811 | Boreoscala greenlandica | 83435 |
| Opalia grossicostata Nyst, 1871 | Opalia hotessieriana | 75097 |
| Epitonium hemmesi DuShane, 1988 | Epitonium hemmesi | 3477 |
| Scalaria hotessieriana d'Orbigny, 1842 | Opalia hotessieriana | 83435 |
| Scalaria humphreysii Kiener, 1838 | Epitonium humphreysii | 83435 |
| Scalaria inconspicuum Sowerby II, 1844 | Epitonium inconspicuum | 83435 |
| Opalia insculpta Carpenter, 1864 | Opalia funiculata | 75097 |
| Opalia karinae Usticke, 1969 | Cirsotrema karinae | 83435 |
| Scala krebsii Mörch, 1875 | Epitonium krebsii | 83435 |
| Scalaria lamellosum Lamarck, 1822 | Epitonium lamellosum | 83435 |
| Scalaria laticostata Strebel, 1905 | Boreoscala magellanicum | 3477 |
| Scalaria leeana Verrill, 1882 | Opalia leeana | 83435 |
| Gregorioiscala levismaculosa Garcia, 2004 | Gregorioiscala levismaculosa | 3477 |
| Opalia linteatum Schwengel, 1943 | Opalia pumilio | 75097 |
| Opalia longissima Garcia, 2004 | Opalia longissima | 86518 |
| Kurodacirsa lotus Masahito & Habe, 1975 | Kurodacirsa lotus | 86518 |
| Epitonium macroense Dall, 1927 | Epitonium candeanum | 75097 |
| Scalaria magellanicum Philippi, 1845 | Boreoscala magellanicum | 83435 |
| Turbo martinii Wood, 1828 | Amaea martinii | 83435 |
| Epitonium matthewsae Clench & Turner, 1952 | Epitonium matthewsae | 19 |
| Epitonium mauryi Tursch & Pierret, 1964 | Epitonium mauryi | 83435 |
| Opalia megalodon Garcia, 2004 | Opalia megalodon | 3477 |
| Scalaria mellissi Smith, 1890 | Epitonium mellissi | 83435 |
| Scala mitchelli Dall, 1896 | Amaea mitchelli | 83435 |
| Epitonium monocycla Kiener, 1839 | Epitonium lamellosum | 75097 |
| Cycloscala montrouzieri Garcia, 2004 | Cycloscala montrouzieri | 3477 |
| Scala morchiana Dall, 1889 | Opalia morchiana | 83435 |
| Scalaria multistriatum Say, 1826 | Epitonium multistriatum | 83435 |
| Epitonium nautlae Morch, 1874 | Epitonium nautlae | 19 |
| Scala nautlae Mörch, 1875 | Epitonium nautlae | 83435 |
| Opalia neocaledonica Garcia, 2004 | Opalia neocaledonica | 3477 |
| Opalia nesiotica Dall, 1917 | Opalia funiculata | 75097 |
| Delphinula nitida Verrill & Smith, 1885 | Eccliseogyra nitida | 83435 |
| Scala nitidella Dall, 1889 | Epitonium nitidella | 83435 |
| Epitonium norvigicum Clench & Turner, 1952 | Boreoscala greenlandica | 75097 |
| Scalaria novangliae Couthouy, 1838 | Epitonium novangliae | 83435 |
| Epitonium pandion Clench & Turner, 1952 | Epitonium pandion | 19 |
| Claviscala pellisanserina Garcia, 2003 | Claviscala pellisanserina | 86518 |
| Cirsotrema pentedesmium Berry, 1963 | Cirsotrema vulpinum | 75097 |
| Scala permodestum Dall, 1889 | Epitonium permodestum | 83435 |
| Scalaria pernobilis Fischer & Bernardi, 1857 | Sthenorytis pernobilis | 83435 |
| Scalaria philtatum Watson, 1886 | Epitonium philtatum | 83435 |
| Epitonium phymanthi Robertson, 1994 | Epitonium phymanthi | 19 |
| Epitonium pilsbryi McGinty, 1940 | Cirsotrema pilsbryi | 83435 |
| Epitonium planicosta Kiener, 1839 | Boreoscala greenlandica | 75097 |
| Scala polacia Dall, 1889 | Epitonium polacia | 83435 |
| Acirsa praelonga Jeffreys, 1877 | Papuliscala praelonga | 83435 |
| Epitonium profundum Nakayama, 2000 | Epitonium profundum | 86518 |
| Epitonium pseudonanum Bouchet & Warén, 1986 | Epitonium pseudonanum | 1056 |
| Epitonium pseudoscalaris Philippi, 1836 | Epitonium lamellosum | 75097 |
| Scala pumilio Mörch, 1875 | Opalia pumilio | 83435 |
| Epitonium pyramis Tinker, 1952 | Epitonium lamellosum | 3477 |
| Scalaria pyrrhias Watson, 1886 | Nystiella pyrrhias | 83435 |
| Solutiscala pyrrhias Watson, 1886 | Nystiella pyrrhias | 75097 |
| Opaliopsis rabalaisi García, 2005 | Opaliopsis rabalaisi | 83435 |
| Scala retifera Dall, 1889 | Amaea retifera | 83435 |
| Iphitus robertsi Sabelli & Taviani, 1997 | Iphitus robertsi | 19 |
| Cylindriscala rosenbergi García, 2005 | Cylindriscala rosenbergi | 83435 |
| Cirsotrema rugosum Kuroda & Ito, 1961 | Cirsotrema rugosum | 86518 |
| Epitonium rugosum Kurado & Ito, 1961 | Epitonium rugosum | 821 |
| Scalaria rupicola Kurtz, 1860 | Epitonium rupicola | 83435 |
| Scalaria sanctaehelenae Smith, 1890 | Epitonium sanctaehelenae | 83435 |
| Cycloscala sardellae Garcia, 2004 | Cycloscala sardellae | 86518 |
| Scala sayana Dall, 1889 | Epitonium humphreysii | 75097 |
| Opalia scaeva Morch, 1874 | Opalia hotessieriana | 75097 |
| Opalia semivaricosa de Boury, 1889 | Opalia pumilio | 75097 |
| Scala sericifila Dall, 1889 | Epitonium sericifila | 83435 |
| Epitonium similis Sowerby, 1813 | Boreoscala greenlandica | 75097 |
| Claviscala solar Nakayama, 1995 | Claviscala solar | 86518 |
| Epidendrium sordidum Gittenberger & Gittenberger, 2006 | Epidendrium sordidum | 86518 |
| Turritella spirata Sowerby I, 1825 | Eglisia spirata | 83435 |
| Scalaria striatissimum Monterosato, 1878 | Epitonium striatissimum | 83435 |
| Pyramis striatula Couthouy, 1838 | Couthouyella striatula | 83435 |
| Epitonium subulata Couthouy, 1838 | Boreoscala greenlandica | 75097 |
| Opalia subvaricosa Morch, 1874 | Opalia pumilio | 75097 |
| Scalaria symphylla Martens, 1878 | Acirsa symphylla | 3477 |
| Epitonium syoichiroi Masahito & Habe, 1976 | Epitonium syoichiroi | 86518 |
| Iphitus tenerrima Dautzenberg & Fischer, 1896 | Alora tenerrima | 83435 |
| Amaea thielei Boury, 1913 | Amaea thielei | 337 |
| Opalia thorsenae Garcia, 2004 | Opalia thorsenae | 3477 |
| Epitonium thorssoni DuShane, 1988 | Epitonium thorssoni | 86518 |
| Epitonium tiburonense Clench & Turner, 1952 | Epitonium tiburonense | 83435 |
| Cirsotrema togatum Hertlein & Strong, 1951 | Cirsotrema togatum | 19 |
| Epitonium tollini Bartsch, 1938 | Epitonium tollini | 19 |
| Scalaria tortilis Watson, 1883 | Opalia tortilis | 83435 |
| Scala townsendi Melvill & Standen, 1903 | Epitonium townsendi | 3477 |
| Eglisia tricarinata Adams & Reeve, 1850 | Eglisia tricarinata | 86518 |
| Iphitus tuberatus Jeffreys, 1883 | Iphitus tuberatus | 1056 |
| Scala turritellula Mörch, 1875 | Epitonium turritellula | 83435 |
| Epitonium ulu Pilsbry, 1921 | Epifungium ulu | 3477 |
| Scalaria unifasciatum Sowerby II, 1844 | Epitonium unifasciatum | 83435 |
| Opalia velumnuptialis Garcia, 2004 | Opalia velumnuptialis | 3477 |
| Scalaria venosum Sowerby II, 1844 | Epitonium venosum | 83435 |
| Opalia wareni Garcia, 2004 | Opalia wareni | 3477 |
| Gyroscala watanabei Nakayama, 2000 | Gyroscala watanabei | 86518 |
| Epitonium worsfoldi Robertson, 1994 | Epitonium worsfoldi | 83435 |