Acella (Acella) acuaria (Neumayr, 1869) † accepted as Omphiscola acuaria (Neumayr, 1869) † (basis of record)
Acella (Acella) cosensis (Tournouër, 1875) † accepted as Lymnaea cosensis Tournouër, 1875 † (basis of record)
Acella (Acella) megarensis (Gaudry, 1867) † accepted as Lymnaea megarensis Gaudry, 1867 † (basis of record)
Acella (Acella) transsylvanica [sic] † accepted as Acella transsilvanica (L. Roth, 1881) † (basis of record)
Agapilia pachii (Handmann, 1889) † accepted as Vitta pachii (Handmann, 1889) † (additional source)
Amnicola (Amnicola) avia (Eichwald, 1850) † accepted as Valvata avia (Eichwald, 1850) † (basis of record)
Amnicola (Amnicola) babukici (Brusina, 1902) † accepted as Pseudamnicola babukici Brusina, 1902 † (basis of record)
Amnicola (Amnicola) balizacensis (Degrange-Touzin, 1892) † accepted as Valvata (Cincinna) balizacensis (Degrange-Touzin, 1892) † represented as Valvata balizacensis (Degrange-Touzin, 1892) † (basis of record)
Amnicola (Amnicola) brusiniana (Pavlović, 1903) † accepted as Pseudamnicola babindolensis Neubauer, Kroh, Harzhauser, Georgopoulou & Mandic, 2015 † (basis of record)
Amnicola (Amnicola) capellinii (Wenz, 1919) † accepted as Pseudamnicola capellinii (Wenz, 1919) † (basis of record)
Amnicola (Amnicola) convexa F. Sandberger, 1875 † accepted as Pseudamnicola convexus (F. Sandberger, 1875) † (basis of record)
Amnicola (Amnicola) curta (Reuss, 1867) † accepted as Pseudamnicola curtus (Reuss, 1867) † (basis of record)
Amnicola (Amnicola) cyclostomoides Sinzov, 1880 † accepted as Pomatiasia cyclostomoides (Sinzov, 1880) † (basis of record)
Amnicola (Amnicola) dokici (Brusina, 1902) † accepted as Bania dokici (Brusina, 1902) † (basis of record)
Amnicola (Amnicola) dromica (Fontannes, 1880) † accepted as Pseudamnicola dromicus (Fontannes, 1880) † (basis of record)
Amnicola (Amnicola) gobanzi Frauenfeld, 1864 † accepted as Bania gobanzi (Frauenfeld, 1864) † (basis of record)
Amnicola (Amnicola) hungarica Frauenfeld, 1862 † accepted as Pseudamnicola hungaricus (Frauenfeld, 1862) † (basis of record)
Amnicola (Amnicola) immutata (M. Hörnes, 1856) † accepted as Bania immutata (M. Hörnes, 1856) † (basis of record)
Amnicola (Amnicola) margaritula (T. Fuchs, 1870) † accepted as Pseudamnicola (Pseudamnicola) margaritulus (T. Fuchs, 1870) † represented as Pseudamnicola margaritulus (T. Fuchs, 1870) † (basis of record)
Amnicola (Amnicola) meridionalis (Frauenfeld, 1862) accepted as Bithynia tentaculata (Linnaeus, 1758) (basis of record)
Amnicola (Amnicola) minima (Lörenthey, 1893) † accepted as Pseudamnicola minimus (Lörenthey, 1893) † (basis of record)
Amnicola (Amnicola) moguntina O. Boettger, 1884 † accepted as Valvata moguntina (O. Boettger, 1884) † (basis of record)
Amnicola (Amnicola) nympha (Eichwald, 1850) † accepted as Pseudamnicola nympha (Eichwald, 1850) † (basis of record)
Amnicola (Amnicola) pachychila (Brusina, 1902) † accepted as Bania pachychila (Brusina, 1902) † (basis of record)
Amnicola (Amnicola) partschi (M. Hörnes, 1856) † accepted as Pseudamnicola partschi (M. Hörnes, 1856) † (basis of record)
Amnicola (Amnicola) pauluccii (Brusina, 1907) † accepted as Bania pauluccii (Brusina, 1907) † (basis of record)
Amnicola (Amnicola) proxima (T. Fuchs, 1870) † accepted as Pseudamnicola proximus (T. Fuchs, 1870) † (basis of record)
Amnicola (Amnicola) proximoides (Capellini, 1880) † accepted as Pseudamnicola proximoides (Capellini, 1880) † (basis of record)
Amnicola (Amnicola) pseudoglobulus (A. d'Orbigny, 1852) † accepted as Bania pseudoglobulus (A. d'Orbigny, 1852) † (basis of record)
Amnicola (Amnicola) pseudoglobulus normalis (Gottschick, 1921) † accepted as Bania pseudoglobulus normalis (Gottschick, 1921) † (basis of record)
Amnicola (Amnicola) pseudoglobulus pseudoglobulus (A. d'Orbigny, 1852) † accepted as Bania pseudoglobulus pseudoglobulus (A. d'Orbigny, 1852) † (basis of record)
Amnicola (Amnicola) pseudoglobulus steinheimensis (K. Miller, 1900) † accepted as Bania pseudoglobulus steinheimensis (K. Miller, 1900) † (basis of record)
Amnicola (Amnicola) pumila (Brusina, 1884) † accepted as Pseudamnicola pumilus (Brusina, 1884) † (basis of record)
Amnicola (Amnicola) punctum (Eichwald, 1850) † accepted as Hydrobia punctum (Eichwald, 1850) † (basis of record)
Amnicola (Amnicola) rotundata (Montpéreux, 1831) † accepted as Pseudamnicola rotundatus (Du Bois de Montpéreux, 1831) † (basis of record)
Amnicola (Amnicola) rueppelli O. Boettger, 1884 † accepted as Pseudamnicola rueppelli (O. Boettger, 1884) † (basis of record)
Amnicola (Amnicola) schottleri Wenz, 1922 † accepted as Pseudamnicola schottleri (Wenz, 1922) † (basis of record)
Amnicola (Amnicola) stosiciana crassa (Brusina, 1897) † accepted as Bania valvatoides (Brusina, 1872) † (basis of record)
Amnicola (Amnicola) stosiciana stosiciana Brusina, 1874 † accepted as Bania stosiciana stosiciana (Brusina, 1874) † (basis of record)
Amnicola (Amnicola) subglobulus (A. d'Orbigny, 1852) † accepted as Nozeba subglobulus (A. d'Orbigny, 1852) † (basis of record)
Amnicola (Amnicola) torbariana Brusina, 1874 † accepted as Bania torbariana (Brusina, 1874) † (basis of record)
Amnicola (Amnicola) turonensis F. Sandberger, 1872 † accepted as Pseudamnicola turonensis (F. Sandberger, 1872) † (basis of record)
Amnicola (Amnicola) ultramontana (Wenz, 1919) † accepted as Pseudamnicola ultramontanus Wenz, 1919 † (basis of record)
Amnicola (Amnicola) zonata (Eichwald, 1850) † accepted as Pseudamnicola zonatus (Eichwald, 1850) † (basis of record)
Amnicola (Sandria) Brusina, 1886 accepted as Tanousia Servain, 1882 (additional source)
Amnicola (Sandria) atava (Andrusov, 1890) † accepted as Tanousia atava (Andrusov, 1890) † (basis of record)
Amnicola (Sandria) destefanii (Brusina, 1902) † accepted as Tanousia destefanii (Brusina, 1902) † (basis of record)
Amnicola (Sandria) kochi (Brusina, 1902) † accepted as Tanousia adnata (Neumayr, 1875) † (basis of record)
Amnicola (Staja) acuticarinata Brusina, 1902 † accepted as Staja acutecarinata Brusina, 1902 † (basis of record)
Amnicola (Staja) adiaphora (Brusina, 1897) † accepted as Staja adiaphora Brusina, 1897 † (basis of record)
Amnicola (Staja) lycica (Oppenheim, 1919) † accepted as Staja lycica (Oppenheim, 1919) † (basis of record)
Amnicola (Staja) obtusecarinata (T. Fuchs, 1870) † accepted as Staja obtusecarinata (T. Fuchs, 1870) † (basis of record)
Amnicola (Staja) orientalis (Bukowski, 1896) † accepted as Staja orientalis (Bukowski, 1896) † (basis of record)
Amnicola (Staja) pseudovariabilis (Andrusov, 1905) † accepted as Staja pseudovariabilis Andrusov, 1905 † (basis of record)
Amnicola (Staja) simici (Pavlović, 1903) † accepted as Staja simici (Pavlović, 1903) † (basis of record)
Amnicola (Staja) taediosa (Brusina, 1892) † accepted as Staja taediosa (Brusina, 1892) † (basis of record)
Amnicola (Staja) trochus (Andrusov, 1890) † accepted as Staja trochus (Andrusov, 1890) † (basis of record)
Amnicola (Staja) vidovici (Brusina, 1892) † accepted as Staja vidovici (Brusina, 1892) † (basis of record)
Amnicola convexa F. Sandberger, 1875 † accepted as Pseudamnicola convexus (F. Sandberger, 1875) † (additional source)
Amnicola torbariana Brusina, 1874 † accepted as Bania torbariana (Brusina, 1874) † (additional source)
Amnicola turonensis F. Sandberger, 1872 † accepted as Pseudamnicola turonensis (F. Sandberger, 1872) † (additional source)
Amphimelania fossariformis (Tournouër, 1879) † accepted as Holandriana fossariformis (Tournouër, 1879) † (basis of record)
Amphimelania frici Brusina, 1897 † accepted as Holandriana frici (Brusina, 1897) † (basis of record)
Amphimelania fuchsi Wenz, 1928 † accepted as Holandriana fuchsi (Wenz, 1928) † (basis of record)
Amphimelania gaji (Brusina, 1878) † accepted as Holandriana gaji (Brusina, 1878) † (basis of record)
Amphimelania hellespontica (Calvert & Neumayr, 1880) † accepted as Palaeotaia hellespontica (Calvert & Neumayr, 1880) † (basis of record)
Amphimelania krambergeri Brusina, 1902 † accepted as Holandriana krambergeri (Brusina, 1902) † (basis of record)
Amphimelania macedonica (Burgerstein, 1877) † accepted as Holandriana macedonica (Burgerstein, 1877) † (basis of record)
Amphimelania patula (Bellardi & Michelotti, 1840) † accepted as Holandriana patula (Bellardi & Michelotti, 1840) † (basis of record)
Amphimelania patula patula (Bellardi & Michelotti, 1840) † accepted as Holandriana patula patula (Bellardi & Michelotti, 1840) † (basis of record)
Amphimelania patula propatula (Sacco, 1886) † accepted as Holandriana patula propatula (Sacco, 1886) † (basis of record)
Amphimelania patula taurostricta [sic] † accepted as Holandriana patula taurostriata (Sacco, 1895) † (basis of record)
Amphimelania pecchioli [sic] † accepted as Holandriana pecchiolii (M. Hörnes, 1856) † (basis of record)
Amphimelania ricinus (Neumayr, 1875) † accepted as Holandriana ricinus (Neumayr, 1875) † (basis of record)
Amphimelania serbica (Živković, 1893) † accepted as Holandriana serbica (Živković, 1893) † (basis of record)
Amphipeplea buchi (Eichwald, 1830) † accepted as Myxas buchii (Eichwald, 1830) † (basis of record)
Ancylus (Ancylastrum) obtusus Rzehak, 1893 † accepted as Ancylus moravicus Rzehak, 1893 † (additional source)
Ancylus (Ancylastrum) simplex (Buc'hoz, 1771) accepted as Ancylus fluviatilis O. F. Müller, 1774 (source of synonymy)
Ancylus bourgeoisi Deshayes, 1863 † (basis of record)
Ancylus croaticus Brusina, 1902 † accepted as Acroloxus croaticus (Brusina, 1902) † (basis of record)
Ancylus decussatus Reuss, 1849 † accepted as Acroloxus decussatus (Reuss, 1849) † (basis of record)
Ancylus deperditolacustris Gottschick, 1911 † accepted as Acroloxus deperditolacustris (Gottschick, 1911) † (basis of record)
Ancylus depressus Deshayes, 1824 † (basis of record)
Ancylus dimici Brusina, 1902 † accepted as Ferrissia dimici (Brusina, 1902) † (additional source)
Ancylus involutus Pavlović, 1903 † accepted as Acroloxus involutus (Pavlović, 1903) † (basis of record)
Ancylus michaudi Locard, 1878 † accepted as Acroloxus michaudi (Locard, 1878) † (basis of record)
Ancylus oblongus Clessin, 1912 † accepted as Ferrissia deperdita oblonga (Clessin, 1912) † (basis of record)
Anisus (Disculifer) omalus (Bourguignat, 1881) † represented as Anisus omalus (Bourguignat, 1881) † (additional source)
Anisus (Gyraulus) oncostomus (Brusina, 1902) † accepted as Gyraulus oncostomus (Brusina, 1902) † (status source)
Anisus (Gyraulus) trochiformis (Stahl, 1824) † accepted as Gyraulus trochiformis (Stahl, 1824) † (additional source)
Anisus rousianus (Noulet, 1854) † (additional source)
Aphanotylus Brusina, 1894 † accepted as Valvata (Aphanotylus) Brusina, 1894 † represented as Valvata O. F. Müller, 1773 (status source)
Aphanotylus adeorboides (T. Fuchs, 1870) † accepted as Valvata (Aphanotylus) adeorboides T. Fuchs, 1870 † represented as Valvata adeorboides T. Fuchs, 1870 † (additional source)
Aphanotylus cossmanni Brusina, 1894 † accepted as Valvata (Aphanotylus) cossmanni (Brusina, 1894) † represented as Valvata cossmanni (Brusina, 1894) † (status source)
Aphanotylus fuchsi Brusina, 1894 † accepted as Valvata (Aphanotylus) fuchsi (Brusina, 1894) † represented as Valvata fuchsi (Brusina, 1894) † (new combination reference)
Aphanotylus kupensis (T. Fuchs, 1870) † accepted as Valvata (Aphanotylus) kupensis T. Fuchs, 1870 † represented as Valvata kupensis T. Fuchs, 1870 † (status source)
Aplexa jaimei (Hermite, 1879) † (basis of record)
Aplexa subhypnorum physaeformis Gottschick, 1920 † (basis of record)
Aplexa subhypnorum subhypnorum Gottschick, 1920 † (basis of record)
Assiminea conoidea Koenen, 1882 † accepted as Peringia conoidea (Koenen, 1882) † (new combination reference)

 Authority

 for Viviparus sadleri [sic] †

Wenz (1928) erroneously considered the record by Stur (1862) as a nomen nudum. Stur attributed the authority to ... [details]

 Classification

 for Emmericia kosoviana (Pavlović, 1903) †

In contrast to Wenz (1926), who considered Choerina as a junior synonym of Emmericia, Esu et al. (2001) accepted ... [details]

 Classification

 for Euchilus elongatus Neumayr, 1880 †

Recombined with Stalioa by Wenz (1926) and with Nystia by Schlickum (1968). Both combinations, as well as the ... [details]

 Nomenclature

 for Melanopsis taurinensis Sacco, 1889 †

Wenz (1928) introduced Melanopsis pedemontana subcallosa as replacement name for the simultaneously published ... [details]

 Spelling

 for Viviparus curtisalaricensis [sic] †

The first description by Rollier (1892) is short and uninformative ("Paludine carénée"), but sufficient to be ... [details]

 Status

 for Gyraulus minutus (Hilgendorf, 1867) †

P. multiformis minutus Hilgendorf, 1867 is invalid for it is a junior homonym of P. minutus Serres, 1829. No ... [details]

 Status

 for Planorbis multiformis var. minutus Hilgendorf, 1867 †

P. multiformis minutus Hilgendorf, 1867 is invalid for it is a junior homonym of P. minutus Serres, 1829. No ... [details]

 Synonymy

 for Melanopsis aquensis Grateloup, 1838 †

Wenz (1929) synonymized the name with "M. major A. Férussac, 1823", which is not an available name. [details]

 Synonymy

 for Stagnicola laurillardianus (Noulet, 1854) †

Considered a synonym of the simultaneously published Radix dilatata (Noulet, 1854) by Wenz (1923), but treated as a ... [details]

 Synonymy

 for Valvata (Cincinna) gaudryana subpiscinalis Delafond & Depéret, 1893 †

V. gaudryana is a nomen nudum and junior synonym of V. inflata Sandberger, 1875 (not vice versa as indicated by ... [details]

 Validity

 for Amnicola (Amnicola) cyclostomoides Sinzov, 1880 †

Not described by Sinzov (1883) as indicated by Wenz (1926). [details]

 Validity

 for Melanopsis major "A. Férussac, 1823" †

This name has appeared several times in the literature (e.g., Bronn 1848: 717; Wenz 1929: 2773), but it is based on an ... [details]

 Validity

 for Planorbis rousianus Noulet, 1854 †

Synonymized with Anisus dupuyianus (Noulet, 1854) by Wenz (1923), but considered a valid species by Kókay (2006). ... [details]

 Validity

 for Radix (Radix) geniesensis (Fontannes, 1883) †

Wenz (1923: 1249-1250) indicated the original description to be in Fontannes (1881: 182, pl. 1, fig. 16), but the ... [details]

 Validity

 for Radix geniesensis (Fontannes, 1883) †

Wenz (1923: 1249-1250) indicated the original description to be in Fontannes (1881: 182, pl. 1, fig. 16), but the ... [details]

 Validity

 for Valvata subdepressa Bielz, 1864 †

Erroneously considered a nomen nudum bei Wenz (1928) and tentatively placed in synonymy of V. sulekiana Brusina, ... [details]