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Wed 1 October 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

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Bivalvia | Unionoida | Unionoidea | Unionidae | Unioninae | Unionini

genus Unio Philipsson in Retzius, 1788: synonymy
     29 Recent freshwater species (45 total species)

Unio Retzius, 1788
Philipsson in Retzius, 1788. Diss. Nat.-Hist. Test. Gen.: 16.
(renamed Unionea Rafinesque, 1815)
Type species: Mya pictorum Linnaeus, 1758 (subsequent designation) = Unio pictorum

Limnaea Poli, 1791
Poli, 1791. Testacea Utriusque Siciliae 1: 31.
(renamed Limella Rafinesque, 1815)
Type species: Mya pictorum Linnaeus, 1758 (original designation) = Unio pictorum

Limnaeoderma Poli, 1795
Poli, 1795. Testacea Utriusque Siciliae 2: 253, 259.
Type species: Mya pictorum Linnaeus, 1758 (herein) = Unio pictorum

Limella Rafinesque, 1815
Rafinesque, 1815. Analyse Nat.: 147.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 20.
(new name for Limnaea Poli, 1791)

Lymnea Rafinesque, 1815
‘Poli’ of Authors.
Rafinesque, 1815. Analyse Nat.: 147.
Gray, 1847. Proc. Zool. Soc. London 15: 196.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 20.
(error for Limnaea Poli, 1791)

Unionea Rafinesque, 1815
Rafinesque, 1815. Analyse Nat.: 147.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 20.
(new name for Unio Retzius, 1788)

Lymnium Oken, 1815
Oken, 1815. Lehrb. Naturg. 3: 237.
Type species: Mya pictorum Linnaeus, 1758 (original designation) = Unio pictorum

Mysca Turton, 1822
Turton, 1822. Conch. Ins. Brit.: 243.
(renamed Myisca Agassiz, 1846)

Unino Fabricus, 1823
Fabricus, 1823. Fortegnelse: 53.
(error for Unio Retzius, 1788)

Unico Reider & Hahn, 1831
Reider & Hahn, 1831. F. Boica (Gewürme): ??.
(error for Unio Retzius, 1788)

Margarita Lea, 1836
Lea, 1836. Synopsis Fam. Naiades: 10.
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 118.
Lea, 1838. Synopsis Fam. Naiades: 13.
(homonym of Leach, 1814 [Pteriidae]; renamed Margaron Lea, 1852)
Type species: Mya pictorum Linnaeus, 1758 (herein) = Unio pictorum

Luticola Agassiz, 1845
‘Goldfuss’ Agassiz, 1845. Nom. Syst. Gen. Moll.: 51.
‘Goldfuss’ Agassiz, 1846. Nomencl. Zool. Index Univ.: 217.
(intro'd as syn. of Unio Retzius, 1788)

Myisca Agassiz, 1846
Agassiz, 1846. Nomencl. Zool. Index Univ.: 242.
(new name for Mysca Turton, 1822)

Limnoderma Herrmannsen, 1846
Herrmannsen, 1846. Ind. Gener. Malacol. 1: 58.
(error for Limnaeoderma Poli, 1795)

Diconcha Herrmannsen, 1847
Klein, 1753. Tent. Method. Ostrac., etc.: 145. [pre-linnaean]
Herrmannsen, 1847. Ind. Gener. Malacol. 1: 386.
(intro'd as syn. of Unio Retzius, 1788)

Chondrostes Gistl, 1847
Gistl, 1847. Naturgesch. Thierreich Höhere Schulen 1850: 617.
Gistl, 1848. Naturgesch. Thierreich Höhere Schulen: 188.
Type species: Mya pictorum Linnaeus, 1758 (original designation) = Unio pictorum

Margaron Lea, 1852
Lea, 1852. Synopsis Fam. Naiades: 17.
Lea, 1870. Synopsis Fam. Naiades: 25.
(new name for Margarita Lea, 1836)
Type species: Mya pictorum Linnaeus, 1758 (herein) = Unio pictorum

Mysea Dupuy, 1852
‘Turton’ of Authors.
Dupuy, 1852. Hist. Natur. Moll. France (6): 637.
Germain, 1931. Faune de France 22: 721.
(error for Mysca Turton, 1822)

Limnoica Gray, 1857
Gray, 1857. Fig. Moll. Animals 5: 37.
Type species: Limnoica linearis Gray, 1857 (monotypy) = Unio pictorum

Limnaeodorma Schaufuss, 1869
Schaufuss, 1869. Moll. Syst. Cat. Paetel 7: 21.
(error for Limnaeoderma Poli, 1795)

Bataviana Servain, 1882
Servain, 1882. Hist. Moll. Acéph. Francfort: 21.
Servain, 1888. Bull. Soc. Malac. France 5: 316.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio matronicus Locard, 1882 (sub. desig. by Graf, 2010: 8) = Unio crassus

Crassiana Servain, 1882
Servain, 1882. Hist. Moll. Acéph. Francfort: 21.
Servain, 1888. Bull. Soc. Malac. France 5: 315.
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 29 [135].
(homonym of Bourguignat, 1884 [Thiaridae]; intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio crassus Retzius, 1788 (sub. desig. by Locard, 1889: 29) = Unio crassus

Galliciana Servain, 1882
Servain, 1882. Hist. Moll. Acéph. Francfort: 21.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio jourdheuili Locard, 1882 (monotypy) = Unio mancus

Limosiana Servain, 1882
Servain, 1882. Hist. Moll. Acéph. Francfort: 21.
(homonym of Servain, 1881 [Lymnaeidae]; intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio limosus Nilsson, 1822 (monotypy) = Unio pictorum

Rostratiana Servain, 1882
Servain, 1882. Hist. Moll. Acéph. Francfort: 21.
Servain, 1888. Bull. Soc. Malac. France 5: 322.
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 65 [171].
(intro'd as sub-gen. of Unio Retzius, 1788; homonym of Bourguignat, 1881)
Type species: Unio rostrata Lamarck, 1819 (sub. desig. by Locard, 1889: 65) = Unio pictorum

Tumidiana Servain, 1882
Servain, 1882. Hist. Moll. Acéph. Francfort: 21.
Servain, 1888. Bull. Soc. Malac. France 5: 323.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio tumidus Retzius, 1788 (sub. desig. by Kantor & Sysoev, 2005: 327) = Unio tumidus

Unis Hutton, 1882
Hutton, 1882. New Zealand J. Sci. Techn. 1: 478.
(error for Unio Retzius, 1788)

Amniciana Servain, 1888
Servain, 1888. Bull. Soc. Malac. France 5: 315.
(intro'd as sub-gen. of Unio Retzius, 1788; homonym of Servain, 1888)
Type species: Unio amnicus Rossmässler, 1836 (sub. desig. by Graf, 2010: 7) = Unio nanus

Villaeana Servain, 1888
Servain, 1888. Bull. Soc. Malac. France 5: 318.
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 47 [153] [as ‘Villœana’].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio villae Issel, 1872 (sub. desig. by Locard, 1889: 47) = Unio elongatulus

Falsiana Servain, 1888
Servain, 1888. Bull. Soc. Malac. France 5: 319.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio falsus Locard, 1882 (sub. desig. by Graf, 2010: 11) = Unio pictorum

Muciduliana Servain, 1888
Servain, 1888. Bull. Soc. Malac. France 5: 319.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio mucidulus Locard, 1882 (sub. desig. by Graf, 2010: 15) = Unio mancus

Schroederiana Servain, 1888
Servain, 1888. Bull. Soc. Malac. France 5: 321.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio schroederi Schröder, 1885 (sub. desig. by Graf, 2010: 18) = Unio tumidus

Brebissoniana Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 152.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio brebissoni Locard, 1889 (orig. desig.) = Unio pictorum

Mariana Locard, 1889
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 159.
(homonym of Quoy & Gaimard, 1825 [Tunicata]; intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio mariae Locard, 1889 (orig. desig.) = Unio crassus

Nanusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 21 [127].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio nana Lamarck, 1819 (orig. desig.) = Unio nanus

Mancusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 22 [128].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio manca Lamarck, 1819 (orig. desig.) = Unio mancus

Melasiana Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 22 [128].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio melas Locard, 1882 (orig. desig.) = Unio nanus

Penchinatiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 25 [131].
(homonym of Fagot, 1891 [Clausiliidae & Helicidae]; intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio penchinatianus Bourguignat, 1865 (orig. desig.) = Unio ravoisieri

Sandriana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 25 [131].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio sandrii Rossmässler, 1844 (sub. desig. by Graf, 2010: 18) = Unio elongatulus

Fusculusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 26 [132].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio fusculus Rossmässler, 1836 (orig. desig.) = Unio nanus

Socardiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 28 [134].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio socardianus Locard, 1882 (orig. desig.) = Unio nanus

Amnicusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 30 [136].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio amnicus Rossmässler, 1836 (orig. desig.) = Unio nanus

Locardiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 32 [138].
(homonym of Bourguignat, 1884 [Gastrop.]; intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio locardianus Locard, 1882 (orig. desig.) = Unio crassus

Nubilusiana Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 32 [138].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio nubilus Locard, 1889 (orig. desig.) = Unio nanus

Elongatulusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 33 [139].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio elongatula C. Pfeiffer, 1825 (orig. desig.) = Unio elongatulus

Ellipsopsisiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 34 [140].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio ryckholtii Malzine, 1867 (sub. desig. by Graf, 2010: 10) = Unio crassus

Batavusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 35 [141].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Mya batava Maton & Rackett, 1807 (orig. desig.) = Unio crassus

Sperchinusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 35 [141].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio nicolloni Locard, 1889 (monotypy) = Unio crassus

Lemotheuxiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 39 [145].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio lemotheuxi Locard, 1889 (orig. desig.) = Unio crassus

Ateriana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 40 [146].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio ater Nilsson, 1822 (orig. desig.) = Unio crassus

Pisaniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 40 [146].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio pisanus Bourguignat, 1883 (orig. desig.) = Unio mancus

Turtoniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 43 [149].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio turtonii Payraudeau, 1826 (orig. desig.) = Unio mancus

Moquiniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 46 [152].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio moquinianus Dupuy, 1843 (orig. desig.) = Unio mancus

Moreletiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 46 [152].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio moreleti Deshayes, 1847 (sub. desig. by Graf, 2010: 15) = Unio ravoisieri

Berenguieriana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 47 [153].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio berenguieri Locard, 1882 (orig. desig.) = Unio mancus

Gallicusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 48 [154].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio gallicus Locard, 1882 (orig. desig.) = Unio mancus

Platyrhynchoidiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 48 [154].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio platyrinchoideus Dupuy, 1849 (orig. desig.) = Unio pictorum

Jacqueminiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 49 [155].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio jacqueminii Dupuy, 1849 (orig. desig.) = Unio mancus

Meretricisiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 50 [156].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio meretricis Locard, 1882 (orig. desig.) = Unio mancus

Requieniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 51 [157].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio requienii Michaud, 1831 (orig. desig.) = Unio mancus

Saintsimoniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 52 [158] [as ‘Saint-Simoniana’].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio saintsimonianus Locard, 1882 (orig. desig.) = Unio mancus

Porniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 53 [159].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio pornae Locard, 1882 (orig. desig.) = Unio mancus

Mucidusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 54 [160].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio mucidus Morelet, 1845 (orig. desig.) = Unio delphinus

Falsusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 55 [161].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio falsus Locard, 1882 (orig. desig.) = Unio pictorum

Joannisiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 57 [163].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio joannisi Locard, 1882 (orig. desig.) = Unio mancus

Courquiniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 58 [164].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio courquinianus Bourguignat, 1865 (orig. desig.) = Unio mancus

Desfontainiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 58 [164].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio oesiacus Locard, 1889 (monotypy) = Unio mancus

Cyrtusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 59 [165].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio campylus Locard, 1889 (sub. desig. by Graf, 2010: 10) = Unio mancus

Vinceleusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 59 [165].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio pictorum var. vinceleus de Joannis, 1859 (orig. desig.) = Unio tumidus

Holandriana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 61 [167].
(homonym of Bourguignat, 1884 [Thiaridae]; intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio holandrei Locard, 1882 (orig. desig.) = Unio mancus

Asticusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 62 [168].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio asticus Servain, 1887 (orig. desig.) = Unio mancus

Aegericiana Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 63 [169].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio aegericus Locard, 1889 (monotypy) = Unio mancus

Granigeriana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 63 [169].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio graniger J.F. Schmidt, 1840 (orig. desig.) = Unio pictorum

Jousseaumeana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 63 [169].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio jousseaumei Locard, 1882 (orig. desig.) = Unio pictorum

Hispaniana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 64 [170].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio hispanus Rossmässler, 1844 (orig. desig.) = Unio delphinus

Tumidusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 69 [175].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio tumidus Retzius, 1788 (orig. desig.) = Unio tumidus

Alpecanusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 71 [177].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio alpecanus Locard, 1882 (orig. desig.) = Unio tumidus

Eydyusiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 71 [177].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio edyus Locard, 1882 (orig. desig.) = Unio tumidus

Heckingiana Locard, 1889
‘Bourguignat MS’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 72 [178].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio tumidus var. heckingi Colbeau, 1868 (orig. desig.) = Unio tumidus

Cafferia Simpson, 1900
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 824.
Simpson, 1914. Descr. Cat. Naiades: 574.
(intro'd as sub-gen. of Nodularia Conrad, 1853)
Type species: Unio caffer Krauss, 1848 (orig. desig.) = Unio caffer

Vincelotiana Germain, 1904
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 276 [38].
(new name for Vinceleusiana Locard, 1889)

Eolymnium Prashad, 1919
Prashad, 1919. Rec. Ind. Mus. 16: 410.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio terminalis Bourguignat, 1852 (orig. desig.) = Unio terminalis

Limaea Rosén, 1925
Rosén, 1925. Arch. Moll. 57: 114.
(error for Limnaea Poli, 1791)

Margoran Kennard & Woodward, 1926
Kennard & Woodward, 1926. Syn. Brit. non-marine Moll.: 328.
(error for Margaron Lea, 1852)

Sculptunio Lindholm, 1932
Lindholm, 1932. Trans. United Geol. Prosp. Serv. USSR 238: 20, 24.
Type species: Unio bituberculosus Martens, 1874 (orig. desig.) = Unio bituberculosus

Tuberunio Lindholm, 1932
Lindholm, 1932. Trans. United Geol. Prosp. Serv. USSR 238: 33, 38.
Type species: Tuberunio uniseralis Lindholm, 1932 = Unio uniseralis

Nemrodia Pallary, 1939
Pallary, 1939. Mém. Inst. Égypte 39: 116.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio tigridis Bourguignat, 1852 (sub. desig. by of Authors, 0) = Unio tigridis

Crassunio Modell, 1964
Modell, 1964. Arch. Moll. 93: 118.
Type species: Unio crassus Retzius, 1788 (orig. desig.) = Unio crassus

Pictunio Jatzko, 1972
Jatzko, 1962. Tr. Odesskogo gos. Univ. (Geol. Geogr.) 152(8): 50. [nomen nudum]
Jatzko, 1972. Naiads of Up. Cenozoic S.W. Ukraina & Moldavia: 11.

Shadininaia Zatravkin, 1983
Starobogatov in Zatravkin, 1983. [in] I.M. Likharev, Molluscs: 40.
(intro'd as sub-gen. of Eolymnium Prashad, 1919)
Type species: Unio byzantinus Drouët, 1879 (orig. desig.) = Unio vicarius

Uniigenus Renier, 1807
Renier, 1807. Tav. Class. Anim.: tab. vii. [suppressed]

Limnium Agassiz, 1846
‘Oken’ Agassiz, 1846. Nomencl. Zool. Index Univ.: 211.
‘Oken’ Stabile, 1859. Atti soc. geol. Milano 1: 170.
‘Oken’ Pallary, 1939. Mém. Inst. Égypte 39: 120.
(error for Lymnium Oken, 1815)

Lymneum Gray, 1847
‘Oken’ Gray, 1847. Proc. Zool. Soc. London 15: 196.
(error for Lymnium Oken, 1815)

Lymnoderma Gray, 1847
‘Poli’ Gray, 1847. Proc. Zool. Soc. London 15: 196.
(error for Limnaeoderma Poli, 1795)

Mysia Gray, 1847
‘Turton’ Gray, 1847. Proc. Zool. Soc. London 15: 196.
(error for Mysca Turton, 1822)

Limnea Dupuy, 1852
Dupuy, 1852. Hist. Natur. Moll. France (6): 598.
(error for Limnaea Poli, 1791)
Type species: Mya pictorum Linnaeus, 1758 = Unio pictorum

Villanana Fagot, 1892
Fagot, 1892. Bull. Soc. Ramond 27: 38.
Fagot, 1893. Bull. Soc. Ramond 28: 258.
(error for Villaeana Servain, 1888)

Hollandriana Germain, 1904
‘Bourguignat’ Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 278.
(error for Holandriana Locard, 1889)

Ninusiana Caziot, 1907
‘Bourg.’ Caziot, 1907. Bull. Soc. Sci. Hist. Nat. Yonne 60: 276.
(error for Nanusiana Locard, 1889)

Vincelensiana Caziot, 1907
‘Bourg.’ Caziot, 1907. Bull. Soc. Sci. Hist. Nat. Yonne 60: 276.
(error for Vinceleusiana Locard, 1889)

Berenguieriane Caziot, 1910
Caziot, 1910. Étude Moll. Princip. Monaco: 483.
(error for Berenguieriana Locard, 1889)

Berenguiereana Caziot, 1910
Caziot, 1910. Étude Moll. Princip. Monaco: 543.
(error for Berenguieriana Locard, 1889)

Heterunio Lindholm, 1932
Lindholm, 1932. Trans. United Geol. Prosp. Serv. USSR 238: 32, 38.
Type species: Unio exquisitus Lindholm, 1932 (orig. desig.) = Unio exquisitus

Nemrodiana Pallary, 1939
Pallary, 1939. Mém. Inst. Égypte 39: 119.
(error for Nemrodia Pallary, 1939)

Tumidunio Jatzko, 1962
Jatzko, 1962. Tr. Odesskogo gos. Univ. (Geol. Geogr.) 152(8): 11.
Type species: Unio tumidus Retzius, 1788 = Unio tumidus

Linnaea Modell, 1964
‘Poli’ Modell, 1964. Arch. Moll. 93: 115.
(error for Limnaea Poli, 1791)

Chondrostea Haas, 1969
‘Gistl, 1848’ Haas, 1969. Treatise on Invert. Paleo: N415.
(error for Chondrostes Gistl, 1847)

Despontainiana Cox et al., 1969
‘Locard’ Cox et al., 1969. Treatise on Invert. Paleo 2: N862.
(error for Desfontainiana Locard, 1889)

Ellipsopsiana Cox et al., 1969
‘Locard’ Cox et al., 1969. Treatise on Invert. Paleo 2: N862.
(error for Ellipsopsisiana Locard, 1889)

Perniana Cox et al., 1969
‘Locard’ Cox et al., 1969. Treatise on Invert. Paleo 2: N862.
(error for Porniana Locard, 1889)

Viliaeana Cox et al., 1969
‘Locard’ Cox et al., 1969. Treatise on Invert. Paleo 2: N863.
(error for Villaeana Servain, 1888)

Consentunio Jatzko, 1972
Jatzko, 1972. Naiads of Up. Cenozoic S.W. Ukraina & Moldavia: 11.
Type species: Unio crassus Retzius, 1788 = Unio crassus

Vilaeana Millard, 2001
‘Bourguignat, Locard’ Millard, 2001. Class. Moll. (3): 1078.
(error for Villaeana Servain, 1888)

Taxonomic History (since 1900)

Unio (sec. Lymnium)Simpson (1900), Simpson (1914)
MargaritanaSimpson (1900), Simpson (1914), Germain (1931)
UnioSimpson (1900), Kobelt (1902), Rochebrune (1903), Kobelt (1903), Kobelt (1904), ... Zieritz et al. (2024), Wu et al. (2024), Dai et al. (2025), Chen et al. (2025), Wu et al. (2025)
Quadrula (sec. Fusconaia)Simpson (1900), Simpson (1914)
Unio (Nephronaias)Martens (1900)
Nodularia (sec. Cafferia)Simpson (1900)
Lampsilis (sec. Eurynia)Simpson (1900)
Diplodon (Hyridella s.s.)Simpson (1900), Simpson (1914)
Nodularia (sec. Cælatura [sic])Simpson (1900), Simpson (1914)
Unio (Batavusiana)Germain (1904)
Unio (Requieniana)Germain (1904)
Unio (Mancusiana)Germain (1904)
Unio (Rhomboïdiana)Germain (1904)
Unio (Socardiana)Germain (1904)
Unio (Rostratiana)Germain (1904)
Unio (Fusculusiana)Germain (1904)
Unio (Joannisiana)Germain (1904)
Unio (Porniana)Germain (1904)
Unio (Cyrtusiana)Germain (1904)
Unio (Melasiana)Germain (1904)
Unio (Hispaniana)Germain (1904)
Unio (Vincelotiana)Germain (1904)
Unio (Ateriana)Germain (1904)
Unio (Alpecanusiana)Germain (1904)
Unio (Saint-simoniana)Germain (1904)
Unio (Falsusiana)Germain (1904)
Unio (Hollandriana) [sic]Germain (1904)
Unio (Meretricisiana)Germain (1904)
Unio (Lemotheuxiana)Germain (1904), Caziot (1910)
Unio (Moreletiana)Germain (1904)
Unio (Groupe Tumidusiana)Caziot (1907)
Unio (Groupe des Batavusiana)Caziot (1907)
Unio (Groupe des Mancusiana)Caziot (1907)
Unio (Groupe des Ninusiana) [sic]Caziot (1907)
Unio (Groupe des Elongatulusiana)Caziot (1907)
Unio (Groupe des Requieniana)Caziot (1907)
Unio (Groupe des Amnicusiana)Caziot (1907)
Unio (Groupe des Vincelensiana) [sic]Caziot (1907)
Unio (Groupe des Ateriana)Caziot (1907)
Unio (Groupe des Falsusiana)Caziot (1907)
Nodularia (Cælatura [sic])Pallary (1909)
Nodularia (Cafferia)Kobelt (1910)
Nodularia (Coelatura)Kobelt (1910)
Unio (Berenguieriane) [sic]Caziot (1910)
Unio (Turtoniana)Caziot (1910)
Unio (sec. Cafferia)Simpson (1914)
RectidensHaas (1914), Haas (1969)
Lampsilis (Eurynia)Simpson (1914)
NodulariaSimpson (1914)
Unio (Eolymnium)Prashad (1919), Haas (1969), Vinarski & Kantor (2016)
Cælatura [sic] (Iaronia)Pallary (1924)
CafferiaConnolly (1925), Connolly (1931), Haas (1936), Modell (1942), Haas (1969), ... Hoeh et al. (2009), Bogan (2010), Graf & Cummings (2011), Reis et al. (2013), Marshall et al. (2014)
Quadrula (Obliquata)Frierson (1927)
Unio (Cafferia)Pilsbry & Bequaert (1927), Thiele (1934), Connolly (1939), Graf (2002)
Lampsilis (Cyrtonaias)Frierson (1927)
VetulonaiaBranson (1935)
Unio (s.s.)Zhadin (1938), Haas (1969), Zatravkin (1983), Stadnichenko (1984), Falkner (1994), Korniushin (1998), Falkner et al. (2001), Falkner et al. (2002), Graf (2002), Bank (2006), Vinarski & Kantor (2016)
PsilunioZhadin (1938), Haas (1940), Daget (1998), Sonowal et al. (2021)
Unio (Nemrodia)Pallary (1939)
Unio (Limnium) [sic]Pallary (1939)
GlebulaModell (1957)
VenustaconchaModell (1957)
MedionidusModell (1957)
Dysnomia (Penita)Modell (1957)
Hyridella (Echyridella)McMichael & Hiscock (1958), Haas (1969)
PotomidaHaas (1969), Zatravkin (1983), Zatravkin (1987), Falkner (1994), Graf (2007), Kantor et al. (2010), IUCN (2014), Vinarski & Kantor (2016)
Unio (Sculptunio)Haas (1969)
Unio (Tuberunio)Haas (1969)
Unio (Heterunio)Haas (1969)
SculptunioStarobogatov (1970)
TuberunioStarobogatov (1970)
Unio (Limnium)Biggs (1971)
CrassianaAkromovski (1976), Kantor & Sysoev (2005), Kantor et al. (2010)
Batavusiana (Crassunio)Zatravkin (1983), Stadnichenko (1984), Zatravkin (1987)
Unio (Tumidusiana)Zatravkin (1983), Stadnichenko (1984), Korniushin (1998)
Batavusiana (s.s.)Zatravkin (1983), Stadnichenko (1984), Zatravkin (1987), Korniushin (1998)
Eolymnium (s.s.)Zatravkin (1983)
Eolymnium (Shadininaia)Zatravkin (1983), Zatravkin (1987), Korniushin (1998)
Unio (Crassunio)Falkner (1994), Bank (2006)
Batavusiana (Crassiana)Korniushin (1998)
PleurobemaParmalee & Bogan (1998), Williams et al. (2008)
“Unio”Evanoff et al. (1998)
Unio (Crassiana)Falkner et al. (2001), Falkner et al. (2002), Vinarski & Kantor (2016)
Crassiana (s.s.)Starobogatov et al. (2004)
TumidianaStarobogatov et al. (2004), Kantor & Sysoev (2005), Kantor et al. (2010)
Crassiana (Bataviana)Starobogatov et al. (2004)
EolymniumKantor et al. (2010)
‘Unio’Delvene et al. (2016)

 
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