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Page last updated
Mon 24 Jun 2019

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!

This page lists the nominal species (available and otherwise) currently circumscribed under the valid name.

Search the database pages:

Bivalvia | Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio

species Unio crassus Philipsson in Retzius, 1788: synonymy
     121 specimens available.

Mya ovalis Lightfoot, 1786
Lister, 1685, Conch.: pl. 146, fig. 1. [pre-linnaean]
‘S.’ Lightfoot, 1786, Catalogue of the Portland Museum: 134, no. 2983.

Unio crassus Retzius, 1788
Schröter, 1779, Gesch. Flußconch.: 182, pl. 2, fig. 2 [Mya testa crassa]. [non-binomial]
Philipsson in Retzius, 1788, Diss. Nat.-Hist. Test. Gen.: 17.

Mya pictorum Gmelin, 1791
Lister, 1678, Hist. Anim. Anglic.: pl. 2, fig. 30; [app.] pl. 1, fig. 4. [pre-linnaean]
Lister, 1685, Conch.: pl. 146, fig. 1; pl. 147, figs. 2-3. [pre-linnaean]
Schröter, 1779, Gesch. Flußconch.: pl. 2, fig. 2; pl. 3, figs. 2-5; pl. 4, fig. 6.
Martini & Chemnitz, 1782, Conchyl. Cab. 6: 19, pl. 1, fig. 6.
Gmelin, 1791, Syst. Nat. 1(6): 3218, sp. 3.
(misidentified reference to Mya pictorum Linnaeus, 1758)

Unio musivus Spengler, 1793
Spengler, 1793, Skr. Naturhist. Selsk. 3: 67, no. 32.

Unio margaritifera Draparnaud, 1806
‘Linn.’ Draparnaud, 1806, Hist. Moll. France: pl. 11, fig. 5.
(misidentified reference to Mya margaritifera Linnaeus, 1758)

Unio pictorum Draparnaud, 1806
‘Linn.’ Draparnaud, 1806, Hist. Moll. France: 131, pl. 11, figs. 3 [var. B]. [in part]
(misidentified reference to Mya pictorum Linnaeus, 1758)

Mya batava Maton & Rackett, 1807
Schröter, 1779, Gesch. Flußconch.: pl. 3, figs. 2, 4-5.
Martini & Chemnitz, 1782, Conchyl. Cab. 6: 19, pl. 1, fig. 6.
Maton & Rackett, 1807, Trans. Linn. Soc. London 8: 37.

Unio lemovicincae Férussac, 1807
Férussac, 1807, Ess.: 114.

Unio nana Lamarck, 1819
Lamarck, 1819, Hist. Natur. Anim. sans Vert. 6: 76, sp. 27.

Unio dilatatus Studer, 1820
Studer, 1820, Naturw. Anz. Schweiz. Ges. Ges. Naturwiss. 3: 93. [nomen nudum]

Unio planus Studer, 1820
Studer, 1820, Naturw. Anz. Schweiz. Ges. Ges. Naturwiss. 3: 93.

Unio litoralis Pfeiffer, 1821
Pfeiffer, 1821, Syst. Anord. Land Wasser. Moll. 1: 117, pl. 5, fig. 12.
Rossmässler, 1853, Z. Malak. 10: 92.
Mörch, 1863, Vidensk. Medd. Naturhist. Foren. Kjöben. (17-22): .
(misidentified reference to Unio littoralis Cuvier, 1798; error for Unio littoralis Cuvier, 1798)

Unio riparia Pfeiffer, 1821
Bruguière, 1797, Encycl. Méth. 2: pl. 249, fig. 4a-b [as Unio sp.].
Pfeiffer, 1821, Syst. Anord. Land Wasser. Moll. 1: 118, pl. 5, fig. 13.
Scholtz, 1843, Land- und Wassermoll. Schlesiens: 129. [nomen nudum]

Unio ater Nilsson, 1822
Nilsson, 1822, Hist. Moll. Suec.: 107.

Unio crassus Nilsson, 1822
‘Retzius’ Nilsson, 1822, Hist. Moll. Suec.: 108.
(reference to Unio crassus Retzius, 1788)

Unio mytiloides Bory de St. Vincent, 1827
Bruguière, 1797, Encycl. Méth. 2: pl. 249, fig. 4a-b [as Unio sp.].
‘Val.’ Bory de St. Vincent, 1827, Encycl. Méth. 2: 151.

Unio rubens Menke, 1828
Menke, 1828, Syn. Method. Moll.: 64, 90.
Menke, 1830, Syn. Method. Moll.: 107, 149.

Unio rugatus Menke, 1828
Menke, 1828, Syn. Method. Moll.: 64, 90.
Menke, 1830, Syn. Method. Moll.: 107, 149.

Unio rubens Menke, 1830
Menke, 1830, Syn. Method. Moll.: 149.
(reference to Unio rubens Menke, 1828)

Unio badius Kokeil, 1831
Kokeil, 1831, Mich. Comp.: pl. 16, fig. 36.

Unio castaneus Fitzinger, 1833
Fitzinger, 1833, Syst, Verz. Österr. Weichth.: 119.
(homonym of Unio castaneus Lea, 1831)

Unio cytherea Küster, 1833
Küster, 1833, Icon. Moll. Test., Abt. 2 Moll. Terr. Fluv.: pl. 5, fig. 3.

Unio dubius Fitzinger, 1833
Fitzinger, 1833, Syst, Verz. Österr. Weichth.: 119. [nomen nudum]

Unio nigricans Fitzinger, 1833
Fitzinger, 1833, Syst, Verz. Österr. Weichth.: 119. [nomen nudum]

Unio sinuolata Küster, 1833
Küster, 1833, Icon. Moll. Test., Abt. 2 Moll. Terr. Fluv.: pl. 5, fig. 5.

Unio decurvatus Rossmässler, 1835
Rossmässler, 1835, Icon. Land- und Süssw.-Moll. 1 (2): 22, pl. 9, fig. 131.
Rossmässler, 1837, Icon. Land- und Süssw.-Moll. 1 (5-6): 21, pl. 24, fig. 339.

Unio labacensis Rossmässler, 1835
‘Ziegler’ Rossmässler, 1835, Icon. Land- und Süssw.-Moll. 1 (2): 21.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio vitreus Rossmässler, 1835
‘Stenz’ Rossmässler, 1835, Icon. Land- und Süssw.-Moll. 1 (2): 21.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio amnicus Rossmässler, 1836
Rossmässler, 1835, Icon. Land- und Süssw.-Moll. 1 (2): 20.
‘Ziegl.’ Rossmässler, 1836, Icon. Land- und Süssw.-Moll. 1 (3): 31, pl. 15, fig. 212.

Unio atrovirens Rossmässler, 1836
‘Schmidt’ Rossmässler, 1836, Icon. Land- und Süssw.-Moll. 1 (3): 28, pl. 15, figs. 206-207.

Unio carinthiacus Rossmässler, 1836
‘Z.’ Rossmässler, 1835, Icon. Land- und Süssw.-Moll. 1 (2): 21.
‘Ziegl.’ Rossmässler, 1836, Icon. Land- und Süssw.-Moll. 1 (3): 30, pl. 15, fig. 209.
Type(s): PARATYPE BMNH_1965216, Carinthia.

Unio carynthiacus Lea, 1836
‘Zeigler’ of Authors.
Lea, 1836, Synopsis Fam. Naiades: 27.
Schlüter, 1838, Kurzgef. Syst. Verz. Conch. Samml.: 33.
J.F. Schmidt, 1840, Bull. Soc. Nat. Moscow 12: 435.
C.B. Adams, 1847, Cat. Gen. Sp. Adams: 14.
Lea, 1852, Synopsis Fam. Naiades: 30.
Lea, 1870, Synopsis Fam. Naiades: 47.
Schröder, 1885, Bull. Soc. Malac. France 2: 229.
Servain, 1888, Bull. Soc. Malac. France 5: 317.
Locard, 1889, Contr. Faune Malacol. Franc. 13: 141 [35].
Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 264.
Germain, 1931, Faune de France 22: 728.
(error for Unio carinthiacus Rossmässler, 1836)

Unio consentaneus Rossmässler, 1836
‘Ziegl.’ Rossmässler, 1836, Icon. Land- und Süssw.-Moll. 1 (3): 29, pl. 15, fig. 208.
‘Ziegl.’ Rossmässler, 1838, Icon. Land- und Süssw.-Moll. 2 (1-2): 42, pl. 40, fig. 544.
Rossmässler, 1842, Icon. Land- und Süssw.-Moll. 2 (5): 14, pl. 55, fig. 742.

Unio fusculus Rossmässler, 1836
‘Z.’ Rossmässler, 1835, Icon. Land- und Süssw.-Moll. 1 (2): 21.
‘Ziegler’ Rossmässler, 1836, Icon. Land- und Süssw.-Moll. 1 (3): 30, pl. 15, fig. 211.

Unio fuscus Lea, 1836
‘Zieg.’ Lea, 1836, Synopsis Fam. Naiades: 27.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio gibba Lea, 1836
‘Mühl. Pfeif.’ Lea, 1836, Synopsis Fam. Naiades: 27.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio piscinalis Rossmässler, 1836
‘Z.’ Rossmässler, 1835, Icon. Land- und Süssw.-Moll. 1 (2): 21.
‘Ziegl.’ Rossmässler, 1836, Icon. Land- und Süssw.-Moll. 1 (3): 30, pl. 15, fig. 210.

Unio reniformis Rossmässler, 1836
‘Schmidt’ Rossmässler, 1836, Icon. Land- und Süssw.-Moll. 1 (3): 31, pl. 15, fig. 213.

Unio retusa Held, 1836
Held, 1836, Isis (Oken) 1836: 281.
(homonym of Unio retusa Lamarck, 1819)

Unio batavus var. elongatus Held, 1836
Held, 1836, Isis (Oken) 1836: 306.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio elongata Lamarck, 1819)

Unio batavus var. gibbosus Held, 1836
Held, 1836, Isis (Oken) 1836: 306.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio gibbosus Barnes, 1823)

Unio acutus Rossmässler, 1837
Rossmässler, 1837, Icon. Land- und Süssw.-Moll. 1 (5-6): 56, pl 29., fig. 413 [as ‘Unio an n. sp.?’]. [nomen nudum]

Unio batavus var. sinuatus Charpentier, 1837
Studer, 1820, Naturw. Anz. Schweiz. Ges. Ges. Naturwiss. 3: 24. [nomen nudum]
Charpentier, 1837, Cat. Moll. Suisse: 24, pl. 2, fig. 21.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio sinuata Lamarck, 1819)

Unio batavus var. squamosus Charpentier, 1837
Charpentier, 1837, Cat. Moll. Suisse: 25, pl. 2, fig. 22.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batvus var. ovatus Charpentier, 1837
Studer, 1820, Naturw. Anz. Schweiz. Ges. Ges. Naturwiss. 3: 94. [nomen nudum]
‘Studer’ Charpentier, 1837, Cat. Moll. Suisse: 24, pl. 2, figs. 20a-b.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio ovatus Say, 1817)

Mysca batava var. fuscula subvar. pallipes Schlüter, 1838
‘Ziegl.’ Schlüter, 1838, Kurzgef. Syst. Verz. Conch. Samml.: 33. [infra-subsp.]
(intro'd as intra-sp. of Unio fusculus Rossmässler, 1836)

Mysca reniformis subvar. kokeilli Schlüter, 1838
Schlüter, 1838, Kurzgef. Syst. Verz. Conch. Samml.: 32. [infra-subsp.]
(intro'd as intra-sp. of Unio reniformis Rossmässler, 1836)

Unio gargottae Rossmässler, 1838
Rossmässler, 1838, Icon. Land- und Süssw.-Moll. 2 (1-2): 26, pl. 35, fig. 493.
(misidentified reference to Unio gargottae Philippi, 1836)

Unio consentaneus legitimus Rossmässler, 1838
Rossmässler, 1838, Icon. Land- und Süssw.-Moll. 2 (1-2): 25, pl. 35, fig. 491a. [infra-subsp.]
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus minor Rossmässler, 1838
Rossmässler, 1838, Icon. Land- und Süssw.-Moll. 2 (1-2): 25, pl. 35, fig. 491c. [infra-subsp.]
(homonym of Unio margaritifer var. minor Rossmässler, 1835; intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus pulcher Rossmässler, 1838
Rossmässler, 1838, Icon. Land- und Süssw.-Moll. 2 (1-2): 25, pl. 35, fig. 491b. [infra-subsp.]
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836; homonym of Unio pulcher Lea, 1838)

Unio corrugata Mauduyt, 1839
Mauduyt, 1839, Tableau Indic. Moll. Vienne: 8, pl. 1, fig. 1.

Unio gangrenosus J.F. Schmidt, 1840
‘Ziegler’ J.F. Schmidt, 1840, Bull. Soc. Nat. Moscow 12: 436.
J.F. Schmidt, 1847, Conch. Krain: 26.

Unio pruinosus J.F. Schmidt, 1840
J.F. Schmidt, 1840, Bull. Soc. Nat. Moscow 12: 445, pl. 9, fig. 3.

Unio littoralis var. minor Rossmässler, 1842
Rossmässler, 1842, Icon. Land- und Süssw.-Moll. 2 (5): 14, pl. 55, figs. 744. [in part]
(misidentified reference to Unio littoralis var. minor Rossmässler, 1842)

Unio crassissimus Hanley, 1843
Schlüter, 1838, Kurzgef. Syst. Verz. Conch. Samml.: 33 [as ‘Mysca tumida var. crassissima’]. [nomen nudum]
‘Fer.’ Hanley, 1843, Illustr. Descr. Cat. Rec. Bivalve Shells: 209.

Unio manca Millet, 1843
‘Lamarck’ of Authors.
Millet, 1843, Mag. Zool.: 4, pl. 64, fig. 2.
(misidentified reference to Unio manca Lamarck, 1819)

Unio requieni Rossmässler, 1844
‘Mich.’ Rossmässler, 1844, Icon. Land- und Süssw.-Moll. 2 (6): 29, pl. 57, fig. 757-761.
(misidentified reference to Unio requienii Michaud, 1831)

Unio batavus var. pusillus Rossmässler, 1844
Rossmässler, 1844, Icon. Land- und Süssw.-Moll. 2 (6): .
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio glaucinus Stabile, 1845
Stabile, 1845, Faun. Lug.: f. 75.
(misidentified reference to Unio glaucinus Porro, 1838)

Unio piscinalis J.F. Schmidt, 1847
J.F. Schmidt, 1847, Conch. Krain: 27.
(reference to Unio piscinalis Rossmässler, 1836)

Unio retzii C.B. Adams, 1847
‘Küst.’ C.B. Adams, 1847, Cat. Gen. Sp. Adams: 14. [nomen nudum]

Unio drouetii Dupuy, 1849
Dupuy, 1849, Cat. Extramar. Galliae Test.: no. 326.
Dupuy, 1852, Hist. Natur. Moll. France (6): 639, pl. 24, fig. 12.

Unio moquinianus Sandberger & Koch, 1851
Sandberger & Koch, 1851, Jb. Nassau. Ver. Naturk. 7: 245.
(misidentified reference to Unio moquinianus Dupuy, 1843)

Unio argens Lea, 1852
‘Küst.’ Lea, 1852, Synopsis Fam. Naiades: 30.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio drouatii Lea, 1852
‘Dup.’ Lea, 1852, Synopsis Fam. Naiades: 39.
(error for Unio drouetii Dupuy, 1849)

Unio kurrii Lea, 1852
‘Küst.’ Lea, 1852, Synopsis Fam. Naiades: 30.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio moquinianus Drouët, 1852
Drouët, 1852, Etudes Nayades de la France: pl. 6, fig. 3.
(misidentified reference to Unio moquinianus Dupuy, 1843)

Unio nanus Dupuy, 1852
‘Lamarck’ Dupuy, 1852, Hist. Natur. Moll. France (6): pl. 25, fig. 16.
(reference to Unio nana Lamarck, 1819)

Unio ovalis Dupuy, 1852
Dupuy, 1852, Hist. Natur. Moll. France (6): pl. 25, fig. 13.
(misidentified reference to Mya ovalis Montagu, 1803)

Unio pescinalis Lea, 1852
‘Zieg.’ Lea, 1852, Synopsis Fam. Naiades: 30.
(error for Unio piscinalis Rossmässler, 1836)

Unio ventricosus Scholtz, 1853
Scholtz, 1853, unknown publication: .
(homonym of Unio ventricosus Barnes, 1823)

Unio brevirostris Küster, 1854
Küster, 1854, Conchyl. Cab. 9(2): 120, pl. 33, figs. 1-3.

Unio carneus Küster, 1854
Küster, 1854, Conchyl. Cab. 9(2): 103, pl. 28, figs. 1-2.

Unio crassus Küster, 1854
‘Retz.’ Küster, 1854, Conchyl. Cab. 9(2): 113, pl. 31, fig. 5. [in part]
(reference to Unio crassus Retzius, 1788)

Unio heldii Küster, 1854
Küster, 1854, Conchyl. Cab. 9(2): 111, pl. 30, fig. 5-7.

Unio luxurians Küster, 1854
Küster, 1854, Conchyl. Cab. 9(2): 119, pl. 32, fig. 5.

Unio nessorhynchus Küster, 1854
Küster, 1854, Conchyl. Cab. 9(2): 116, pl. 31, fig. 6.

Unio ater Moquin-Tandon, 1855
‘Nilss.’ Moquin-Tandon, 1855, Hist. Natur. Moll. France 2: 570.
(reference to Unio ater Nilsson, 1822)

Unio capigliolo Küster, 1855
‘Payraudeau’ of Authors.
Küster, 1855, Conchyl. Cab. 9(2): 125, pl. 34, figs. 5-6. [in part]
Sowerby, 1868, Conch. Icon. 16: pl. 75, sp. 392.
(misidentified reference to Unio capigliolo Payraudeau, 1826)

Unio gangraenosus Küster, 1855
‘Ziegler’ of Authors.
Küster, 1855, Conchyl. Cab. 9(2): 124.
Westerlund, 1890, Fauna Paläarct. Binnenconch. 2(7): 81.
Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 130.
Haas, 1969, Das Tierreich 88: 46.
(error for Unio gangrenosus J.F. Schmidt, 1840)

Unio rivularis Moquin-Tandon, 1855
Rossmässler, 1844, Icon. Land- und Süssw.-Moll. 2 (6): fig. 414.
Moquin-Tandon, 1855, Hist. Natur. Moll. France 2: 571.
(homonym of Unio rivularis Conrad, 1853)

Unio batavus var. sarratinus Moquin-Tandon, 1855
‘St. Germain, in litt.’ Moquin-Tandon, 1855, Hist. Natur. Moll. France 2: 571.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio gontierii Bourguignat, 1856
Bourguignat, 1856, Aménités Malacol. 2: 33, pl. 4, figs. 1-4.

Unio ater Drouët, 1857
‘Nilss.’ Drouët, 1857, Étud. Naïades. France, Unio: 72, pl. 4, fig. 1.
(reference to Unio ater Nilsson, 1822)

Unio nanus Drouët, 1857
‘Lam.’ Drouët, 1857, Étud. Naïades. France, Unio: pl. 5, fig. 2.
(reference to Unio nana Lamarck, 1819)

Unio platyrhynchoideus Drouët, 1857
‘Dup.’ Drouët, 1857, Étud. Naïades. France, Unio: 100, pl. 9, fig. 1.
(misidentified reference to Unio platyrinchoideus Dupuy, 1849)

Unio batavus de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: pl. 9, fig. 2. [in part]
(reference to Mya batava Maton & Rackett, 1807)

Unio courtillieri Hattemann, 1859
Hattemann, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 232.

Unio batavus var. acutus de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 287, pl. 10, fig. 1.
(homonym of Unio acutus Rossmässler, 1837)

Unio batavus var. baraceus de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 285, pl. 9, fig. 7.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus var. courtilieri de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: pl. 9, fig. 3.
(reference to Unio courtillieri Hattemann, 1859; error for Unio courtillieri Hattemann, 1859)

Unio batavus var. longus de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 288, pl. 10, fig. 3.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio longus Philippi, 1869)

Unio batavus var. minimus de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 289, pl. 9, fig. 6.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio requienii var. minima Drouët, 1857)

Unio batavus var. nanus de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: pl. 9, fig. 8. [in part]
(reference to Unio nana Lamarck, 1819)

Unio batavus var. nanus de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: pl. 9, fig. 10. [in part]
(reference to Unio nana Lamarck, 1819)

Unio batavus var. ovalis de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: pl. 10, fig. 2.
(misidentified reference to Mya ovalis Montagu, 1803)

Unio batavus var. senotius de Joannis, 1859
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 288, pl. 10, fig. 4.

Unio orientalis Küster, 1862
‘Parreis in sched.’ Küster, 1862, Conchyl. Cab. 9(2): 267.
(intro'd as syn of Unio kotschyi Küster, 1862)

Unio sanderi Bourguignat, 1862
Bourguignat, 1862, Malacol. Lac Quatre-Cantons: 55.
Bourguignat, 1864, Malac. Aix-les-Baines: 76.

Unio ater Bourguignat, 1864
Bourguignat, 1864, Malac. Aix-les-Baines: 73.
(reference to Unio ater Nilsson, 1822)

Unio merdiger Reeve, 1865
Jay, 1839, Cat. Rec. Shells: 25, sp. 1065.
‘Walsh.’ Lea, 1852, Synopsis Fam. Naiades: . [nomen nudum]
‘Watts’ Reeve, 1865, Conch. Icon. 16: pl. 28, sp. 145.

Unio lambottei Malzine, 1867
Malzine, 1867, Matér. Faune Malacol. Belg.: 33, pl. 2, figs, 3-4.

Unio ryckholtii Malzine, 1867
Malzine, 1867, Matér. Faune Malacol. Belg.: 32, pl. 2, figs. 1-2.

Unio batavus var. squamosus Brot, 1867
Brot, 1867, Assoc. Zool. Léman Ann. (1866): pl. 9, fig. 1.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; reference to Unio batavus var. squamosus Charpentier, 1837)

Unio ryckholti var. cuneata Malzine, 1867
Malzine, 1867, Matér. Faune Malacol. Belg.: 32.
(homonym of Unio cuneatus Jacquemin, 1835; intro'd as intra-sp. of Unio ryckholtii Malzine, 1867)

Unio (tumidus) elegans Westerlund, 1867
Westerlund, 1867, Malak. Blatt. 14: 202, 206.
(homonym of Unio elegans Lea, 1831)

Unio batavus var. belgicus Colbeau, 1868
Colbeau, 1868, Ann. Soc. Roy. Zool. Malac. Belgique 3: 106, pl. 4, fig. 3.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio labacencis Lea, 1870
‘Pfeif. Mühl.’ Lea, 1870, Synopsis Fam. Naiades: 47.
(error for Unio labacensis Rossmässler, 1835)

Unio maceerthyanus Lea, 1870
‘Bourg.’ Lea, 1870, Synopsis Fam. Naiades: 48.
(error for Unio maccarthyanus Bourguignat, 1866; misidentified reference to Unio maccarthyanus Bourguignat, 1866)

Unio crassus var. maximus Kobelt, 1872
Kobelt, 1872, Malak. Blatt. 19: 142, pl. 5.
Kobelt, 1884, Icon. Land- und Süssw.-Moll. 1: 67, pl. 29, figs. 218-219.
(intro'd as intra-sp. of Unio crassus Retzius, 1788; homonym of Unio pictorum maxima Mörch, 1863)

Unio batavus Miller, 1873
Miller, 1873, Schalth. Bodensees: pl. 2, fig. 8.
(reference to Mya batava Maton & Rackett, 1807)

Unio bosnensis Möllendorff, 1874
Möllendorff, 1874, Beitr. Fauna Bosniens: 62, text figs. 21-22.
(renamed Unio bosnicus Locard, 1889)

Unio pseudolitoralis Clessin, 1875
Clessin, 1875, Verh. Ver. Naturgesch. Hamburg 3: 258.

Unio byzantinus Drouët, 1879
‘Parr.’ Lea, 1870, Synopsis Fam. Naiades: 48. [nomen nudum]
‘Parreyss, in sched.’ Drouët, 1879, J. de Conch. 27: 141.

Unio phaseolus Kobelt, 1879
‘Held’ Kobelt, 1879, Icon. Land- und Süssw.-Moll. 6: 44, pl. 163, fig. 1649.
(homonym of Unio phaseolus Hildreth, 1828)

Unio subtilis Drouët, 1879
Drouët, 1879, J. de Conch. 27: 142.

Unio vescoi var. conemenosi Westerlund & Blanc, 1879
Blanc in Westerlund & Blanc, 1879, Aperçu Faune Malac. Grèce: 145.
(intro'd as intra-sp. of Unio vescoi Bourguignat, 1856)

Unio moquinianus Brevière, 1880
Brevière, 1880, Cat. moll. Nièvre: 26.
(misidentified reference to Unio moquinianus Dupuy, 1843)

Unio requieni Brevière, 1880
‘Mich.’ Brevière, 1880, Cat. moll. Nièvre: 26.
(misidentified reference to Unio requienii Michaud, 1831)

Unio araxenus Drouët, 1881
Drouët, 1881, Unionidae Russie: 18.

Unio colchicus Drouët, 1881
Drouët, 1881, Unionidae Russie: 18.

Unio croaticus Drouët, 1881
Drouët, 1881, J. de Conch. 29: 245.

Unio diagonalis Drouët, 1881
‘Held’ Drouët, 1881, J. de Conch. 29: 27.
(intro'd as syn of Unio batavus var. squamosus Charpentier, 1837)

Unio mingrelicus Drouët, 1881
Drouët, 1881, Unionidae Russie: 16.

Unio neocomensis Drouët, 1881
Drouët, 1881, J. de Conch. 29: 247.

Unio raddei Drouët, 1881
Drouët, 1881, Unionidae Russie: 17.

Unio sieversi Drouët, 1881
Drouët, 1881, Unionidae Russie: 17.

Unio stepanoffi Drouët, 1881
Drouët, 1881, Unionidae Russie: 15.

Unio stevenianus Drouët, 1881
Krynicki, 1837, Bull. Soc. imp. Nat. Moscou 10(2): 59. [nomen nudum]
‘Krynicki’ Drouët, 1881, Unionidae Russie: 14.
‘Krynicki’ Drouët, 1881, J. de Conch. 29: 24.
Drouët, 1884, Suppl. Unionidae de Serbie: pls. 1-2.

Unio andegavensis Locard, 1882
‘Servain’ Locard, 1882, Prodr. Malac. Franç. 1: 289, 359.
‘Servain’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 142 [36].
‘Servain’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 167.
Type(s): POSSIBLE SYNTYPE MNHN_22100, La Maine à Angers.

Unio arenarum Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 289, 358.
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 144 [38].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 171.
Type(s): IDIOTYPE MNHN_22110, Basse Indre (Loire-Inf.).

Unio brevierei Locard, 1882
‘Bourguignat’ Locard, 1882, Prodr. Malac. Franç. 1: 286 [as ‘brevieri’], 356.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 148 [42].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 178.
(correct name for Unio brevieri Locard, 1882)
Type(s): LECTOTYPE MNHN_22145, La Canne, à Goulnot.

Unio brevieri Locard, 1882
‘Bourguignat in Locard’ of Authors.
Locard, 1882, Prodr. Malac. Franç. 1: 286.
Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 265.
Germain, 1931, Faune de France 22: 732.
Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 130.
Haas, 1969, Das Tierreich 88: 49.
(incorrect original spelling of Unio brevierei Locard, 1882)

Unio carantoni Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 295, 364.
‘Coutagne’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 129 [23].
‘Coutagne’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 157.
Type(s): IDIOTYPE MNHN_22162, [illegible] (Charente).

Unio crassatellus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 286, 356.
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 136 [30].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 162.
Type(s): LECTOTYPE MNHN_22182, La Canne, à Jailly (Nièvre).

Unio cyprinorum Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 289, 358.
‘Berthier’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 142 [36].
‘Berthier’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 168.
Type(s): IDIOTYPE MNHN_22185, l’Ornain (Meuse).

Unio danemorae Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 284, 354 [as ‘danemoræ’].
‘Mörch’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 147 [41] [as ‘danemoræ’].
‘Mörch’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 177 [as ‘danemoræ’].
Type(s): IDIOTYPE MNHN_22186, lac d’Ondres (Baase-Pyrénées).

Unio dubisanus Locard, 1882
‘Coutagne’ Locard, 1882, Prodr. Malac. Franç. 1: 291.
(incorrect original spelling of Unio dubisianus Locard, 1882)

Unio dubisianus Locard, 1882
‘Coutagne’ Locard, 1882, Prodr. Malac. Franç. 1: 291 [as ‘dubisanus’], 360.
‘Coutagne’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 129 [23].
‘Coutagne’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 158.
(correct name for Unio dubisanus Locard, 1882)
Type(s): SYNTYPE MNHN_22198, La Clange (Jura).

Unio dubisiopsis Locard, 1882
Locard, 1882, Prodr. Malac. Franç. 1: 291 [as ‘dubisopsis’], 360.
Locard, 1889, Contr. Faune Malacol. Franc. 13: 128 [22] [as ‘dubisianopsis’].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 155 [as ‘dubisianopsis’].
(correct name for Unio dubisianopsis Locard, 1889)

Unio dubisopsis Locard, 1882
Locard, 1882, Prodr. Malac. Franç. 1: 291.
(incorrect original spelling of Unio dubisiopsis Locard, 1882)

Unio feliciani Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 285, 355.
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 134 [28].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 161, fig. 175.
Bourguignat in Locard, 1899, Conchyliol. Portug.: 217.
Type(s): POSSIBLE SYNTYPE MNHN_22215, La Moselle.

Unio ligericus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 289, 358.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 142 [36].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 169.
Type(s): IDIOTYPE MNHN_22310, La Loire à Ingrandes.

Unio locardianus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 287, 356.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 138 [32].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 164, fig. 178.
Type(s): IDIOTYPE MNHN_22316, l’Albane (Côte-d’Or).

Unio macrorhynchus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 292, 361.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 132 [26].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 158, fig. 172.
Type(s): LECTOTYPE MNHN_22326, lac du Bourget.

Unio matronicus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 289, 358.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 143 [37].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 170.
Type(s): LECTOTYPE MNHN_22355, La Marne à Lagny (Seine-et-Marne).

Unio melas Locard, 1882
Coutagne in Locard, 1882, Prodr. Malac. Franç. 1: 285, 355.
‘Coutagne’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 128 [22].
‘Coutagne’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 155, fig. 169.
Type(s): SYNTYPE MNHN_22363, Saulcy-sur-Meurthe (Vosges) [written on shell].

Unio minutus Locard, 1882
‘Ray’ Locard, 1882, Prodr. Malac. Franç. 1: 290. [nomen nudum]

Unio oxyrhynchus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 285, 355.
‘Brevière’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 149 [43].
‘Brevière’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 180.
(homonym of Unio oxyrhynchus Martens, 1861)
Type(s): LECTOTYPE MNHN_22438, La Canne, dans la Nièvre.

Unio potamius Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 289, 359.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 140 [34].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 169.
Type(s): IDIOTYPE MNHN_22470, La Brizotte (Côte-d’Or).

Unio sandrii Locard, 1882
Locard, 1882, Prodr. Malac. Franç. 1: 292.
(misidentified reference to Unio sandrii Rossmässler, 1844)

Unio savensis Drouët, 1882
Drouët, 1882, Unionidae de Serbie: 15.

Unio septentrionalis Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 284, 354.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 149 [43].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 181, fig. 194.
Type(s): IDIOTYPE MNHN_22528, le Mandrezey, à Saulcy-sur-Meurthe (Vosges).

Unio sequanicus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 289, 358.
‘Coutagne’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 142 [36].
‘Coutagne’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 169, fig. 183.
Type(s): LECTOTYPE MNHN_22529, La Marne à Lagny (Seine-et-Marne).

Unio socardianus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 286, 355.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 134 [28].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 161.

Unio striatulus Drouët, 1882
Drouët, 1882, Unionidae de Serbie: 19.
(homonym of Unio striatulus Lea, 1857; renamed Unio striolatus Drouët, 1884)

Unio truncatulus Drouët, 1882
Drouët, 1882, Unionidae de Serbie: 12.
(homonym of Unio rhomboideus var. truncatulus de Joannis, 1859)

Unio dokici Drouët, 1884
Drouët, 1884, Suppl. Unionidae de Serbie: 5, pl. 1, fig. 1.

Unio rivalis Drouët, 1884
Drouët, 1884, Suppl. Unionidae de Serbie: 13.

Unio serbicus Drouët, 1884
Drouët, 1884, Suppl. Unionidae de Serbie: 9, pl. 1, fig. 1.

Unio striolatus Drouët, 1884
Drouët, 1884, Suppl. Unionidae de Serbie: 9.
(new name for Unio striatulus Drouët, 1882)

Unio batavellus Locard, 1885
‘Letourneux’ Locard, 1885, Bull. Soc. Sci. Nat. Rouen 21: 11.
‘Letourneux’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 144 [38].
‘Letourneux’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 170, fig. 184.
Type(s): LECTOTYPE MNHN_22127, La Bouille, près de Rouen (Seine-Inf.).

Unio duregicus Servain, 1885
Servain, 1885, Bull. Soc. Malac. France 2: 331.

Unio ostiorum Servain, 1885
‘Brot, mss.’ Servain, 1885, Bull. Soc. Malac. France 2: 327.

Unio sandriopsis Servain, 1885
‘Bourguignat, mss.’ Servain, 1885, Bull. Soc. Malac. France 2: 325.

Unio subrobustus Servain, 1885
‘Bourguignat, mss.’ Servain, 1885, Bull. Soc. Malac. France 2: 332.

Unio tiguricus Servain, 1885
Servain, 1885, Bull. Soc. Malac. France 2: 329.

Unio turicus Servain, 1885
Servain, 1885, Bull. Soc. Malac. France 2: 327.

Unio batavus var. albensis Hazay, 1885
Hazay, 1885, Jb. Dtsch. Malak. Ges. 12: 43.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus var. ondovensis Hazay, 1885
Hazay, 1885, Jb. Dtsch. Malak. Ges. 12: 43.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio hueti Kobelt, 1886
‘Bourg.’ Kobelt, 1886, Icon. Land- und Süssw.-Moll. 2: 22, pl. 41, fig. 255.
(misidentified reference to Unio hueti Bourguignat, 1855)

Unio kochi Kobelt, 1886
Sandberger & Koch, 1851, Jb. Nassau. Ver. Naturk. 7: 245 [as ‘U. moquinianus’].
Kobelt, 1886, Jb. Nassau. Ver. Naturk. 39: 97, pl. 6, fig. 1.
Kobelt, 1886, Icon. Land- und Süssw.-Moll. 2: 46, pl. 56, figs. 295-296.

Unio neocomiensis Kobelt, 1886
‘Drouët’ Kobelt, 1886, Icon. Land- und Süssw.-Moll. 2: 34.
(error for Unio neocomensis Drouët, 1881)

Unio sieversi Kobelt, 1886
Kobelt, 1886, Icon. Land- und Süssw.-Moll. 2: pl. 53, fig. 286.
(reference to Unio sieversi Drouët, 1881)

Unio batavus var. taunica Kobelt, 1886
Kobelt, 1886, Jb. Nassau. Ver. Naturk. 39: 96, pl. 7, fig. 5.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio raddei var. koutaisiana Kobelt, 1886
Kobelt, 1886, Icon. Land- und Süssw.-Moll. 2: 40, pl. 52, fig. 283.
(intro'd as intra-sp. of Unio raddei Drouët, 1881)

Unio baroni Servain, 1887
Servain, 1887, Bull. Soc. Malac. France 4: 254.

Unio carcasinus Sourbieu, 1887
Sourbieu, 1887, Bull. Soc. Malac. France 4: 235.

Unio badiellus Drouët, 1888
Drouët, 1888, J. de Conch. 36: 107.
Drouët, 1889, Mém. Acad. Sci. Dijon 1: 76, pl. 1, fig. 4.

Unio baudoni Folin, 1888
Folin, 1888, Le Naturaliste 10: 273, 4 text figs.
(homonym of Unio baudoni Folin & Bérillon, 1875)

Unio crassulus Drouët, 1888
Drouët, 1888, J. de Conch. 36: 106.
Drouët, 1889, Mém. Acad. Sci. Dijon 1: 66, pl. 2, fig. 5.
Type(s): SYNTYPE MNHN_MP_0027, Saone.

Unio dilophius Servain, 1888
‘Bourguignat’ Servain, 1888, Bull. Soc. Malac. France 5: 316, footnote. [nomen nudum]
Locard, 1889, Contr. Faune Malacol. Franc. 13: 136 [30], footnote. [nomen nudum]

Unio hamburgiensis Servain, 1888
Servain, 1888, Bull. Soc. Malac. France 5: 315.

Unio minutulus Servain, 1888
‘Ray’ Locard, 1882, Prodr. Malac. Franç. 1: 290 [as ‘Unio minutus’]. [nomen nudum]
‘Ray’ Servain, 1888, Bull. Soc. Malac. France 5: 316.

Unio vegesackensis Servain, 1888
Bourguignat in Servain, 1888, Bull. Soc. Malac. France 5: 317.

Unio visurgisinus Servain, 1888
Servain, 1888, Bull. Soc. Malac. France 5: 316.

Unio adonus Locard, 1889
‘Servain’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 146 [40], 211 [105].
‘Servain’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 175, fig. 188.
Type(s): LECTOTYPE MNHN_22085, La Loire a Basse Indre (Loire-Inf.).

Unio ampulodon Locard, 1889
‘Coutagne Mss. teste Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 128 [22]. [nomen nudum]
(intro'd as syn of Unio dubisianopsis Locard, 1889)

Unio andeliacus Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 138 [32], 196 [90].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 165.
Type(s): LECTOTYPE MNHN_22101, le Gouet, à Saint-Brieue (Côtes-du-Nord).

Unio aturicus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 129 [23], 188 [82].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 157.
Type(s): HOLOTYPE (MONOTYPY) MNHN_22118, Bahus (Landes).

Unio balbignyanus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 147 [41], 217 [111].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 178.
Type(s): LECTOTYPE MNHN_22122, La Loire, à Balbigny (Loire).

Unio besnardianus Locard, 1889
Servain, 1888, Bull. Soc. Malac. France 5: 317. [nomen nudum]
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 141 [35], 206 [100].
‘Servain’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 172, fig. 186 [as ‘besnardinus’].
(renamed Unio besnardi Germain, 1904)
Type(s): LECTOTYPE MNHN_22133, La Loire, à Saint-Gemmes (Maine-et-Loire).

Unio bosnicus Locard, 1889
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 132 [26].
(new name for Unio bosnensis Möllendorff, 1874)

Unio caroliensis Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 159 [53], 237 [131].
‘F. Pacome’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 172.
Type(s): LECTOTYPE MNHN_22167, Charolles (Saône-et-Loire).

Unio catalaunicus Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 133 [27], 192 [86].
‘Coutagne’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 160.
Type(s): LECTOTYPE MNHN_22171, La Marne, à Charenton (Seine).

Unio caumonti Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 145 [39], 207 [101].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 171.

Unio diptychus Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 143 [37], 201 [95].
‘Surault’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 169.
Type(s): POSSIBLE SYNTYPE MNHN_22192, La Loire à Ingrandes.

Unio dubisianopsis Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 128 [22].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 155.
(error for Unio dubisiopsis Locard, 1882)

Unio euthymeanus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 166 [60], 245 [139].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 203.
Type(s): LECTOTYPE MNHN_22202, La Saône à Collonges (Rhône).

Unio financei Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 143 [37], 205 [99].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 171.
Type(s): IDIOTYPE MNHN_22217, La Marne à Châlons (Marne).

Unio hattemani Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 146 [40], 212 [106].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 176.
Type(s): SYNTYPE MNHN_22254, La Loire, à Basse-Indre.

Unio ignari Locard, 1889
‘Nilss.’ Drouët, 1857, Étud. Naïades. France, Unio: 72, pl. 4, fig. 1 [as ‘U. ater’].
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 146 [40], 213 [107].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 176.
Type(s): SYNTYPES MNHN_22270, Le Mandrezey, à Saulcy-sur-Meurthe (Vosges).

Unio ignariformis Locard, 1889
‘Dup.’ Drouët, 1857, Étud. Naïades. France, Unio: 100, pl. 9, fig. 1 [as ‘U. platyrhynchoideus’].
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 147 [41], 214 [108].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 177.

Unio ingrandiensis Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 143 [37], 202 [96].
‘Sarault’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 173.
Type(s): POSSIBLE SYNTYPE MNHN_22282, Ingrandes (Maine-et-Loire).

Unio jurianus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 129 [23], 187 [81].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 157, fig. 171 [as ‘juranus’].
Type(s): LECTOTYPE MNHN_22292, La Valouze (Jura).

Unio lemotheuxi Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 145 [39], 208 [102].
‘Servain’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 175, fig. 189.
Type(s): LECTOTYPE MNHN_22306, le Reyran (Var).

Unio mariae Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 159 [53], 236 [130] [as ‘mariæ’].
‘F. Pacome’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 172 [as ‘mariæ’].
Type(s): IDIOTYPE MNHN_22342, La Loire à Nantes (Loire-Infereur).

Unio materniacus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 143 [37], 203 [97].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 168, fig. 182.
Type(s): LECTOTYPE MNHN_22347, la Somme à Abbeville.

Unio melantatus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 147 [41], 216 [110].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 177.
Type(s): LECTOTYPE MNHN_22360, La Loire à Balbigny (Loire).

Unio necomensis Locard, 1889
‘Drouët’ of Authors.
Locard, 1889, Contr. Faune Malacol. Franc. 13: 132 [26].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 159.
Germain, 1931, Faune de France 22: 725.
(error for Unio neocomensis Drouët, 1881)

Unio nicolloni Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 141 [35], 200 [94].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 173.
Type(s): HOLOTYPE (MONOTYPY) MNHN_22404, Nantes.

Unio nubilus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 138 [32], 198 [92].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 165, fig. 179.
(homonym of Unio nubilus Lea, 1868)
Type(s): LECTOTYPE MNHN_22414, Verpillière (Isère).

Unio occidentalis Locard, 1889
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 149 [43], 220 [114].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 180.
‘Bourguignat’ Locard, 1899, Conchyliol. Portug.: 220.
(homonym of Unio occidentalis Conrad, 1836)
Type(s): LECTOTYPE MNHN_22424, Balbigny (Loire).

Unio orbus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 138 [32], 195 [89].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 165.
Type(s): LECTOTYPE MNHN_22427, Pentoise (Jura).

Unio redactus Drouët, 1889
Drouët, 1889, Mém. Acad. Sci. Dijon 1: 79, pl. 1, fig. 2.

Unio seneauxi Locard, 1889
‘Linn.’ Draparnaud, 1806, Hist. Moll. France: 131, pl. 11, figs. 3 [as ‘Unio pictorum var. B’].
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 145 [39], 208 [102].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 174, fig. 187 [as ‘senauxi’].
Type(s): LECTOTYPE MNHN_22523, La Loire à Orléans.

Unio sperchinus Locard, 1889
‘Thièse’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 141 [35], footnote. [nomen nudum]

Unio subamnicus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 137 [31], 194 [88].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 163.
Type(s): SYNTYPE MNHN_22559, La Saône, à Auxonne (Côte-d’Or).

Unio surraulti Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 144 [38], 204 [98].
‘Servain’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 174 [as ‘suraulti’].
Type(s): SYNTYPE MNHN_22569, La Loire à Ingrandes.

Unio valliericus Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 139 [33], 199 [93].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 165.
Type(s): SYNTYPE MNHN_22592, l’Albane (Côte-d’Or).

Unio visurgicus Locard, 1889
‘Servain’ of Authors.
Locard, 1889, Contr. Faune Malacol. Franc. 13: 141 [35].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 173.
Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 262.
(error for Unio visurgisinus Servain, 1888)

Unio pilloti var. minor Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 129 [23]. [nomen nudum]
(intro'd as intra-sp. of Unio pilloti Locard, 1882)

Unio suborbicularis var. minor Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 127 [21]. [nomen nudum]
Westerlund, 1890, Fauna Paläarct. Binnenconch. 2(7): 84. [nomen nudum]
(intro'd as intra-sp. of Unio suborbicularis Drouët, 1888)

Unio subrobustus var. curta Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 135 [29].
(homonym of Unio curtus Lea, 1859; intro'd as intra-sp. of Unio subrobustus Servain, 1885)

Unio courtilieri Locard, 1889
‘Hattemann’ of Authors.
Locard, 1889, Contr. Faune Malacol. Franc. 13: 132 [26].
‘Hattemann’ Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 256 [18].
‘Hattmann’ Germain, 1931, Faune de France 22: 724, 727.
(error for Unio courtillieri Hattemann, 1859)

Unio sieversi var. kobelti Westerlund, 1890
Kobelt, 1886, Icon. Land- und Süssw.-Moll. 2: pl. 53, fig. 286 [as ‘U. sieversi’].
Westerlund, 1890, Fauna Paläarct. Binnenconch. 2(7): 151.
(intro'd as intra-sp. of Unio sieversi Drouët, 1881; homonym of Unio kobelti Neumayr, 1899)

Unio ampullaceus Locard, 1893
Locard, 1893, Coqu. Eau Douce Saumâtre France: 174.
(homonym of Unio ampullaceus Lea, 1866)
Type(s): LECTOTYPE MNHN_22098, Le Mans (Sarthe).

Unio besnardinus Locard, 1893
‘Servain’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 172.
(error for Unio besnardianus Locard, 1889)

Unio chardoni Locard, 1893
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 173.

Unio gliscerus Locard, 1893
Locard, 1893, Coqu. Eau Douce Saumâtre France: 168.
Type(s): LECTOTYPE MNHN_22241, La Loire à Nantes (Loire-Infereur).

Unio juranus Locard, 1893
‘Locard’ of Authors.
Locard, 1893, Coqu. Eau Douce Saumâtre France: 157.
Germain, 1931, Faune de France 22: 725.
(error for Unio jurianus Locard, 1889)

Unio lamboltei Locard, 1893
‘Malzine’ of Authors.
Locard, 1893, Coqu. Eau Douce Saumâtre France: 177.
Germain, 1931, Faune de France 22: 732.
Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 130.
(error for Unio lambottei Malzine, 1867)

Unio lancelevei Locard, 1893
Locard, 1893, Bull. Soc. Sci. Nat. Elbeuf 12: 1.
Locard, 1893, Coqu. Eau Douce Saumâtre France: 170.
Type(s): SYNTYPE MNHN_22305, le Seine au nord d. Rouen.

Unio senauxi Locard, 1893
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 174.
(error for Unio seneauxi Locard, 1889)

Unio suraulti Locard, 1893
‘Servain in Locard’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 174.
(error for Unio surraulti Locard, 1889)

Unio lepidulus Drouët, 1898
Drouët, 1898, Mém. Acad. Sci. Dijon ??: 60, pl. 1, fig. 7.

Unio batavus var. major Drouët, 1898
Drouët, 1898, Mém. Acad. Sci. Dijon ??: 61.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio ellipsopsis Locard, 1899
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 140 [34]. [nomen nudum]
Bourguignat in Locard, 1899, Conchyliol. Portug.: 218.

Unio musicus Simpson, 1900
‘Spengler’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 744.
(error for Unio musivus Spengler, 1793)

Unio besnardi Germain, 1904
Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 261 [23].
(new name for Unio besnardianus Locard, 1889)

Unio hattemanni Germain, 1904
‘Bourguignat’ Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 265 [27].
(error for Unio hattemani Locard, 1889)

Unio ater var. irgizlaicus Lindholm, 1904
Lindholm, 1904, Ann. Mus. St. Pétersbourg 8: 343.
(intro'd as intra-sp. of Unio ater Nilsson, 1822)

Unio batavellus var. perconvexus Germain, 1904
Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 260 [22].
(intro'd as intra-sp. of Unio batavellus Locard, 1885)

Unio batavus var. radiata Germain, 1904
Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 257 [19].
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio (Elliptio) viridis var. radiata Rafinesque, 1820)

Unio ligericus var. subsinuatus Germain, 1904
Germain, 1904, Bull. Soc. Sci. Nat. Ouest France 4: 259 [21].
(intro'd as intra-sp. of Unio ligericus Locard, 1882)

Unio pseudolittoralis var. curonicus Riemenschneider, 1907
Riemenschneider, 1907, Nachr. Bl. Dtsch. Malak. Ges. 39: 150.
(intro'd as intra-sp. of Unio pseudolitoralis Clessin, 1875)

Unio hassiae Haas, 1908
Haas, 1908, Nachr. Bl. Dtsch. Malak. Ges. 40: 175.

Unio pseudocrassus Haas, 1909
Haas, 1909, Beitr. Kenntn. Mittleleurop. Najadeen, Beilage zu... 41: 29.

Unio brandisi Kobelt, 1910
Kobelt, 1910, Icon. Land- und Süssw.-Moll. 15: 82, pl. 419, figs. 2434-2435.

Unio travnicensis Kobelt, 1910
Kobelt, 1910, Icon. Land- und Süssw.-Moll. 15: 83, pl. 420, figs. 2436-2438.

Unio batavus badensis Haas, 1910
Haas, 1910, Mitteleur. Najad., Beiträge Nachr. Bl. Dtsch. Malak. Ges. (4): 60.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus sabulosus Haas, 1910
Haas, 1910, Mitteleur. Najad., Beiträge Nachr. Bl. Dtsch. Malak. Ges. (4): 59.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus forma elongata Clessin, 1910
Clessin, 1910, Nachr. Bl. Dtsch. Malak. Ges. 42: 66.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio elongata Lamarck, 1819)

Unio consentaneus hohenwarti Kobelt, 1910
Kobelt, 1910, Icon. Land- und Süssw.-Moll. 15: 78, pl. 418, fig. 2427.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus langi Kobelt, 1910
Kobelt, 1910, Icon. Land- und Süssw.-Moll. 15: 70, pl. 415, fig. 2414.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus subterminalis Kobelt, 1910
Kobelt, 1910, Icon. Land- und Süssw.-Moll. 15: 80, pl. 418, fig. 2429.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus thayacus Kobelt, 1910
Kobelt, 1910, Icon. Land- und Süssw.-Moll. 15: 69, pl. 414, figs. 2410-2411; pl. 415, fig. 2413.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio (consentaneus var. ?) gallensteini Kobelt, 1910
Kobelt, 1910, Icon. Land- und Süssw.-Moll. 15: 79, pl. 418, fig. 2428.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836; homonym of Unio lijacensis var. gallensteini Kobelt, 1890)

Unio batavus hexameri Haas, 1911
Haas, 1911, Verh. Naturhist. Ver. Preuß. Rheinl. 68: 526, pl. 4, fig. 2.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus palatinus Haas, 1911
Haas, 1911, Verh. Naturhist. Ver. Preuß. Rheinl. 68: 525, pl. 4, fig. 3.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus probavaricus Haas, 1911
Haas, 1911, Verh. Naturhist. Ver. Preuß. Rheinl. 68: 526, pl. 4, fig. 9.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus forma pseudoconsentaneus Geyer, 1911
Geyer, 1911, Jh. Ver. Vaterl. Naturkde. Württemb. 67: 365, pl. 5, fig. 3.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio consentaneus abnobae Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: 23, pl. 458, figs. 2473-2477.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus biandeti Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: 22, pl. 457, fig. 2470.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus bodamicus Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: 21, pl. 456, figs. 2465-2466.
(intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus dilatatus Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: 18, pl. 453, figs. 2447-2448; 23, pl. 457, fig. 2472.

Unio consentaneus elongatus Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: 20, pl. 455, figs. 241.
(homonym of Unio elongata Lamarck, 1819; intro'd as intra-sp. of Unio consentaneus Rossmässler, 1836)

Unio consentaneus marisaensis Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: 57, pl. 479, figs. 2559-2562.
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: pl. 479 [caption, as “marisensis”].

Unio consentaneus marisensis Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: pl. 479 [caption].
(incorrect original spelling of Unio consentaneus marisaensis Kobelt & Haas, 1911)

Unio crassus heimburgi Haas, 1911
Haas, 1911, Verh. Naturhist. Ver. Preuß. Rheinl. 68: 527, pl. 6, fig. 20.
(intro'd as intra-sp. of Unio crassus Retzius, 1788)

Unio crassus var. okae Kobelt & Haas, 1911
Kobelt & Haas, 1911, Icon. Land- und Süssw.-Moll. 17: 58, index, pl. 480, fig. 2567.
(intro'd as intra-sp. of Unio crassus Retzius, 1788)

Unio gregorii Kobelt, 1912
Kobelt, 1912, Icon. Land- und Süssw.-Moll. 19: 30, pl. 494, fig. 2632.

Unio kungurensis Kobelt, 1912
Kobelt, 1912, Icon. Land- und Süssw.-Moll. 19: 24, pl. 490, figs. 2622-2623.

Unio roseni Kobelt, 1912
Kobelt, 1912, Icon. Land- und Süssw.-Moll. 19: 27, pl. 492, fig. 2627.

Unio batavus distinguendus C. Boettger, 1912
C. Boettger, 1912, Arch. Naturg. 78: 305, pl. 1, fig. 7.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio batavus navensis C. Boettger, 1912
C. Boettger, 1912, Arch. Naturg. 78: 305, pl. 5, figs. 1-3.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio kungurensis chlebnikowi Kobelt, 1912
Kobelt, 1912, Icon. Land- und Süssw.-Moll. 19: 26, pl. 491, fig. 2624.
(intro'd as intra-sp. of Unio kungurensis Kobelt, 1912; renamed Unio crassus var. chlebnikovi Zhadin, 1938)

Unio kungurensis irenjensis Kobelt, 1912
Kobelt, 1912, Icon. Land- und Süssw.-Moll. 19: 26, pl. 491, fig. 2626.
(intro'd as intra-sp. of Unio kungurensis Kobelt, 1912)

Unio kungurensis sylwensis Kobelt, 1912
Kobelt, 1912, Icon. Land- und Süssw.-Moll. 19: 26, pl. 491, fig. 2625.
(intro'd as intra-sp. of Unio kungurensis Kobelt, 1912)

Unio subbatavus Kobelt, 1913
Bourguignat in Servain, 1888, Bull. Soc. Malac. France 5: 317. [nomen nudum]
Kobelt, 1913, Icon. Land- und Süssw.-Moll. 19: 48, pl. 534, fig. 2749.

Unio batavus kobeltianus Haas, 1913
Haas, 1913, Nachr. Bl. Dtsch. Malak. Ges. 45: 105.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)

Unio crassus thuringiacus Israel, 1913
Israel, 1913, [in] Thüring. Lehrerverein Naturk.: 28, pl. 6, figs. 4-6.
(intro'd as intra-sp. of Unio crassus Retzius, 1788)

Unio crassus polonicus Polinksi, 1917
Polinksi, 1917, C. R. Soc. Sci. Varsovie 10: 902, pl. ??, figs. 1, 3.
(intro'd as intra-sp. of Unio crassus Retzius, 1788)

Unio crassus subsp. ornatus Polinksi, 1917
Polinksi, 1917, C. R. Soc. Sci. Varsovie 10: 904, pl. ??, fig. 2.
(intro'd as intra-sp. of Unio crassus Retzius, 1788; homonym of Unio ovatus var. ornatus Conrad, 1835)

Unio cantianus Kennard & Woodward, 1924
Kennard & Woodward, 1924, Proc. Malac. Soc. London 16: 136, text figs. 8-9.

Unio sobriewskii Rosén, 1925
Rosén, 1925, Arch. Moll. 57: 116-121 ??.
Type(s): LECTOTYPE ZIN_AN_SSSR_1,

Unio carioliensis Germain, 1931
‘Pacôme’ Germain, 1931, Faune de France 22: 728.
(error for Unio caroliensis Locard, 1889)

Unio nubilius Germain, 1931
‘Locard’ Germain, 1931, Faune de France 22: 727.
(error for Unio nubilus Locard, 1889)

Unio valleriacus Germain, 1931
‘Bourg. in Loc.’ Germain, 1931, Faune de France 22: 727.
(error for Unio valliericus Locard, 1889)

Unio visursisinus Germain, 1931
‘Servain’ Germain, 1931, Faune de France 22: 728.
(error for Unio visurgisinus Servain, 1888)

Unio crassus consentancus Zhadin, 1938
‘Ziegler’ Zhadin, 1938, Faune USSR Mollusques 4(1): 91.
(error for Unio consentaneus Rossmässler, 1836)

Unio crassus var. chlebnikovi Zhadin, 1938
‘Kobelt’ Zhadin, 1938, Faune USSR Mollusques 4(1): 89.
(new name for Unio kungurensis chlebnikowi Kobelt, 1912)

Unio crassus var. ishmensis Zhadin, 1938
Zhadin, 1938, Faune USSR Mollusques 4(1): 160.
(intro'd as intra-sp. of Unio crassus Retzius, 1788)

Unio crassus var. stepanovi Zhadin, 1938
‘Drouët’ Zhadin, 1938, Faune USSR Mollusques 4(1): 90.
(error for Unio stepanoffi Drouët, 1881)

Unio mingrelicus var. stevenianiformis Zhadin, 1938
Zhadin, 1938, Faune USSR Mollusques 4(1): 96, text fig. 28.
(intro'd as intra-sp. of Unio mingrelicus Drouët, 1881)

Unio raddei var. kutaisiana Zhadin, 1938
‘Kobelt’ of Authors.
Zhadin, 1938, Faune USSR Mollusques 4(1): 94.
Zatravkin, 1987, Byull. Mosk. Obshch.. Ispyt. Prir. 92(4): 49.
(error for Unio raddei var. koutaisiana Kobelt, 1886)

Unio hattmanni Haas, 1940
‘Bourguignat’ Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 131.
(error for Unio hattemani Locard, 1889)

Unio kungurensis sylvensis Haas, 1940
‘Kobelt’ Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 132.
‘Kobelt’ Haas, 1969, Das Tierreich 88: 53.
(error for Unio kungurensis sylwensis Kobelt, 1912)

Unio raddei var. kutaisanus Haas, 1940
‘Kobelt’ Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 131.
(error for Unio raddei var. koutaisiana Kobelt, 1886)

Unio lancelevi Haas, 1969
‘Locard’ Haas, 1969, Das Tierreich 88: 51.
(error for Unio lancelevei Locard, 1893)

Unio raddei var. koutaisanus Haas, 1969
‘Kobelt’ Haas, 1969, Das Tierreich 88: 53.
(error for Unio raddei var. koutaisiana Kobelt, 1886)

Unio byzantius Zatravkin, 1983
‘Drouet’ Zatravkin, 1983, [in] I.M. Likharev, Molluscs: 40.
(error for Unio byzantinus Drouët, 1879)

Unio arazenus Zatravkin, 1987
‘Drouet’ Zatravkin, 1987, Byull. Mosk. Obshch.. Ispyt. Prir. 92(4): 49.
(error for Unio araxenus Drouët, 1881)

Unio crassus var. irgislaicus Zatravkin, 1987
‘Lindholm’ Zatravkin, 1987, Byull. Mosk. Obshch.. Ispyt. Prir. 92(4): 57.
(error for Unio ater var. irgizlaicus Lindholm, 1904)

Unio mingrelicus var. stevenianiformes Zatravkin, 1987
‘Shadin’ Zatravkin, 1987, Byull. Mosk. Obshch.. Ispyt. Prir. 92(4): 56.
(error for Unio mingrelicus var. stevenianiformis Zhadin, 1938)

Unio stevenianius Bába, 2000
‘Kyrnicky’ Bába, 2000, Boll. Malac. 36(5-8): 135.
(error for Unio stevenianus Drouët, 1881)

Crassiana mengrelica Kantor et al., 2010
‘Drouët’ Kantor et al., 2010, Cat. Contin. Moll. Russia: 260.
(error for Unio mingrelicus Drouët, 1881)

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