species Unio mancus Lamarck, 1819: synonymy

Unio manca Lamarck, 1819

Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 80, sp. 43.
LECTOTYPE MNHN_MPL_0033, Bourgogne dans le Dree.

Unio (sec. Lymnium) pictorum — Simpson (1900)
Unio (Mancusiana) mancus — Germain (1904)
Unio (Groupe des Mancusiana) mancus — Caziot (1907)
Unio mancus — Kobelt & Haas (1910), Germain (1931), Nagel et al. (1998), Bába (2000), Araujo et al. (2005), ... Dai et al. (2025), Hou et al. (2025), Nagel (2025), Campbell & Lydeard (2026), Prie et al. (2026)
Unio (sec. Lymnium) (Group U. pictorum) pictorum — Simpson (1914)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio (s.s.) mancus — Falkner (1994)
Unio pictorum mancus — Nagel (2000), Nagel & Badino (2001)
Unio (s.s.) mancus mancus — Falkner et al. (2001), Falkner et al. (2002)
Crassiana mancus — Gozhik (2006)
Unio mancus mancus — Prie et al. (2012), Prie (2012), Prié & Puillandre (2014), Lopes-Lima et al. (2017), Marrone et al. (2019), Campbell & Lydeard (2026)

Unio pictorum ‘Linnaeus’ of Authors

(misidentified reference to Mya pictorum Linnaeus, 1758)
‘Linnaeus’ of Authors.
Guérin-Méneville, 1823. Icon. Règne Animal Cuvier 2: pl. 28, fig. 16.
Reeve, 1865. Conch. Icon. 16: pl. 25, sp. 123.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)

Unio turtonii Payraudeau, 1826

Payraudeau, 1826. Cat. Méthod. Descr. Annélides Mollusques Corse: 65, pl. 2, figs. 2-3.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio turtonii turtonii — Haas (1924)
Unio turtoni — Germain (1931), IUCN (1996)
Unio elongatulus turtoni — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio (s.s.) mancus turtonii — Falkner et al. (2001), Falkner et al. (2002)
Unio mancus turtonii — Prie et al. (2012), Prie (2012), Prié & Puillandre (2014), Lopes-Lima et al. (2017), Marrone et al. (2019), Lyubas et al. (2022), Campbell & Lydeard (2026)
Unio mancus — Araujo et al. (2018)

Unio capigliolo Payraudeau, 1826

Payraudeau, 1826. Cat. Méthod. Descr. Annélides Mollusques Corse: 66, pl. 2, fig. 4.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio capigliolo — Germain (1931)
Unio elongatulus turtoni — Haas (1940), Haas (1969)
Unio mancus turtonii — Prie (2012)

Unio requienii Michaud, 1831

Michaud, 1831. Compl. Hist. Nat. Moll., Draparnaud: 106, pl. 16, fig. 24.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (Requieniana) requieni — Germain (1904)
Unio (Groupe des Requieniana) requieni — Caziot (1907)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio (s.s.) mancus requienii — Falkner et al. (2001), Falkner et al. (2002)
Unio mancus requienii — Prie et al. (2012), Prie (2012), Prié & Puillandre (2014), Lopes-Lima et al. (2017), Marrone et al. (2019), Lyubas et al. (2022), Campbell & Lydeard (2026)
Unio mancus — Araujo et al. (2018)

Unio emarginatus Lea, 1834

Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 62 [174], pl. 9, fig. 22.
HOLOTYPE USNM_86159, [no locality available - Europe].

Unio (sec. Lymnium) emarginatus — Simpson (1900)
Unio (Nephronaias) aztecorum — Martens (1900)
Unio (sec. Lymnium) (Group U. littoralis) emarginatus — Simpson (1914)
Unio emarginatus — de Gregorio (1914)
Unio elongatulus durieui — Haas (1940), Haas (1969)

Unio gargottae Philippi, 1836

Philippi, 1836. Enum. Moll. Siciliae 1: 66, pl. 5, fig. 6.
SYNTYPE SMF 316415, northern Sicily, Italy.

Margaritana crassa — Simpson (1900)
Margaritana (Group of M. margaritifera) crassa — Simpson (1914)
Unio elongatulus gargottae — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio mancus gargottae — Lopes-Lima et al. (2017)
Unio mancus — Araujo et al. (2018), Nagel (2025)

Unio lobata Philippi, 1836

Cristofori & Jan, 1830. Cat. Rer. Nat. Mus. 2: 7. [nomen nudum]
Philippi, 1836. Enum. Moll. Siciliae 1: 67.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio elongatulus gargottae — Haas (1940), Haas (1969)

Unio bandinii Rossmässler, 1837

‘Küster’ Rossmässler, 1837. Icon. Land- und Süssw.-Moll. 1 (5-6): 22, pl. 24, fig. 341.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio elongatulus turtoni — Haas (1969), Fauna Europaea (2012)
Unio mancus turtonii — Prie (2012)

Unio bandini Küster, 1837

(reference to Unio bandinii Rossmässler, 1837)
Küster, 1837. Icones Moll. Test. 5-6: 22, pl. 24, fig. 341.

Unio (sec. Lymnium) batavus — Simpson (1900)
Unio (sec. Lymnium) (Group U. littoralis) batavus — Simpson (1914)
Unio elongatulus turtoni — Haas (1940)

Unio moquinianus Dupuy, 1843

(renamed Unio consentaneus var. moquini Germain, 1931)
Dupuy, 1843. Essai Moll. Terr. Fluv. du Gers: 80, text figs. 1-2. [in part]
Dupuy, 1852. Hist. Natur. Moll. France (6): 644, pl. 26, fig. 18.
SYNTYPES UMMZ_113537,  l’Echez a Bigen, Bigorre, France.

Unio (sec. Lymnium) batavus — Simpson (1900)
Unio (sec. Lymnium) (Group U. littoralis) batavus — Simpson (1914)
Unio consentaneus var. moquini — Germain (1931)
Unio elongatulus moquinianus — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio (s.s.) mancus moquinianus — Falkner et al. (2001), Falkner et al. (2002)
Unio mancus — Araujo et al. (2009), Araujo et al. (2018)
Unio mancus moquinianus — Prie (2012), Prié & Puillandre (2014)
Unio mancus mancus — Lopes-Lima et al. (2017)

Unio ardusianus Reyniès, 1843

Reyniès, 1843. Lettre à Moquin-Tandon: 5, pl. 1, fig. 7-8.
Dupuy, 1852. Hist. Natur. Moll. France (6): 653, pl. 28, fig. 17.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio consentaneus var. ardusianus — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio requienii form crassidens Rossmässler, 1844

(homonym of Unio crassidens Lamarck, 1819; intro'd as intra-sp. of Unio requienii Michaud, 1831)
Rossmässler, 1844. Icon. Land- und Süssw.-Moll. 2 (6): 30, pl. 57, figs. 757-760. [infra-subsp.]
LECTOTYPE SMF 10735 (by Zilch, 1967: 78), Baïse River, Department Gers, France.

Unio pictorum platyrhynchoideus [sic] — Haas (1940), Haas (1969)
Unio pictorum — He & Zhuang (2013)
Unio mancus — Nagel (2025)

Unio aradae Philippi, 1844

Philippi, 1844. Enum. Moll. Siciliae 3: 49.
SYNTYPE SMF 316416, Francofonte, Italy.

Unio (sec. Lymnium) pictorum — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) pictorum — Simpson (1914)
Unio elongatulus gargottae — Haas (1940), Haas (1969)
Unio mancus — Nagel (2025)

Unio aleronii Companyo & Massot, 1845

Companyo & Massot, 1845. Bull. Soc. Agricult. Sci. Lettr. Pyrén.-Orient. 6: 234, text fig. 2.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) batavus — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio (sec. Lymnium) (Group U. littoralis) batavus — Simpson (1914)
Unio turtoni var. aleroni — Germain (1931)
Unio elongatulus aleroni — Haas (1940), Haas (1969)
Unio (s.s.) mancus aleronii — Falkner et al. (2001), Falkner et al. (2002)
Unio mancus — Araujo et al. (2009), Araujo et al. (2018)
Unio mancus aleronii — Prie (2012)
Unio mancus var. aleronii — Prié & Puillandre (2014)
Unio mancus mancus — Lopes-Lima et al. (2017)
Unio aleroni — Altaba et al. (2025)

Unio rousii Dupuy, 1849

Dupuy, 1849. Cat. Extramar. Galliae Test.: no. 340.
Dupuy, 1852. Hist. Natur. Moll. France (6): 653, pl. 28, fig. 18.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio requieni var. rousi — Germain (1931)
Unio elongatulus rousii — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio mancus mancus — Lopes-Lima et al. (2017)
Unio pictorum — Araujo et al. (2018)

Unio jacqueminii Dupuy, 1849

Dupuy, 1849. Cat. Extramar. Galliae Test.: no. 328.
Dupuy, 1852. Hist. Natur. Moll. France (6): 643, pl. 25, fig. 17.

Unio (sec. Lymnium) batavus — Simpson (1900)
Unio (sec. Lymnium) (Group U. littoralis) batavus — Simpson (1914)
Unio consentaneus var. jacquemini — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio valentinus Rossmässler, 1854

Rossmässler, 1854. Icon. Land- und Süssw.-Moll. 3 (1-2): 37, pl. 69, fig. 852.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio turtonii valentinus — Haas (1924)
Unio elongatulus valentinus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2005), Araujo et al. (2009), Fauna Europaea (2012), Araujo et al. (2018)
Unio mancus mancus — Prie (2012), Lopes-Lima et al. (2017)

Unio moquinianus var. subtriangularis Moquin-Tandon, 1855

(intro'd as intra-sp. of Unio moquinianus Dupuy, 1843)
‘Dup.!, fig. 2’ Moquin-Tandon, 1855. Hist. Natur. Moll. France 2: 573.

Unio moquinianus var. oblongus Moquin-Tandon, 1855

(intro'd as intra-sp. of Unio moquinianus Dupuy, 1843)
Moquin-Tandon, 1855. Hist. Natur. Moll. France 2: 573.

Unio requienii var. minima Drouët, 1857

(intro'd as intra-sp. of Unio requienii Michaud, 1831)
Drouët, 1857. Étud. Naïades. France, Unio: 97, pl. 7, fig. 2.

Unio requieni — Germain (1931)

Unio pictorum var. compressus de Joannis, 1859

(homonym of Unio compressus J. de C. Sowerby, 1828; intro'd as intra-sp. of Mya pictorum Linnaeus, 1758; renamed Unio joannisi Locard, 1882)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 295, pl. 12, fig. 7.

Unio (Joannisiana) joannisi — Germain (1904)
Unio requieni — Germain (1931)

Unio requienii var. rostratus de Joannis, 1859

(homonym of Unio rostrata Lamarck, 1819)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 10, fig. 6.

Unio requieni — Germain (1931)
Unio mancus requienii — Prie (2012)

Unio requienii var. rhyncoideus de Joannis, 1859

(intro'd as intra-sp. of Unio requienii Michaud, 1831)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 290, pl. 11, fig. 1.

Unio requienii var. abbreviatus de Joannis, 1859

(intro'd as intra-sp. of Unio requienii Michaud, 1831)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 290, pl. 11, fig. 7.

Unio requienii var. cuneatus de Joannis, 1859

(intro'd as intra-sp. of Unio requienii Michaud, 1831; homonym of Unio cuneatus Barnes, 1823)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 10, fig. 7.

Unio requienii var. calami de Joannis, 1859

(intro'd as intra-sp. of Unio requienii Michaud, 1831)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 11, fig. 3.

Unio requienii var. cuneolus de Joannis, 1859

(homonym of Unio cuneolus Lea, 1840; intro'd as intra-sp. of Unio requienii Michaud, 1831)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 292, pl. 11, fig. 5.

Unio amnicus var. sabaudina Bourguignat, 1864

Bourguignat, 1864. Malac. Aix-les-Baines: pl. 3, figs. 9-11.

Unio mancus — Kobelt & Haas (1910)

Unio graellsianus Bourguignat, 1865

Bourguignat, 1865. Moll. Nouv. Litig. Peu Connus: 147, pl. 23, figs. 4-7.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio elongatulus valentinus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009), Fauna Europaea (2012)
Unio mancus mancus — Prie (2012)

Unio courquinianus Bourguignat, 1865

Bourguignat, 1865. Moll. Nouv. Litig. Peu Connus: 149, pl. 26.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)
Unio elongatulus valentinus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio requienii crassulus Drouët, 1867

(intro'd as intra-sp. of Unio requienii Michaud, 1831)
Drouët, 1867. Moll. Terr. Fluv. Code-d’Or: 102.

Unio lawleyianus Gentiluomo, 1868

Gentiluomo, 1868. Boll. Malac. Ital. 1: 54, pl. 4, figs. 1-3.

Unio (sec. Lymnium) pictorum — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) pictorum — Simpson (1914)
Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969), Fauna Europaea (2012)
Unio mancus — Araujo et al. (2005), IUCN (2014), Araujo et al. (2018)
Unio cf. elongatulus — Lopes-Lima et al. (2017)

Unio larderelianus Pecchioli, 1869

Pecchioli, 1869. Boll. Malac. Ital. 2: 163, pl. 5.

Unio (sec. Lymnium) platyrinchoideus — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) platyrinchoideus — Simpson (1914)
Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio moreleti Folin & Bérillon, 1874

(renamed Unio moreletianus Folin & Bérillon, 1877; homonym of Unio moreleti Deshayes, 1847)
Folin & Bérillon, 1874. Bull. Soc. Bayonne: 95.

Unio villae var. brindosianus — Germain (1931)
Unio pictorum platyrhynchoideus [sic] — Haas (1940), Haas (1969)
Unio mancus brindosianus — Prie (2012)

Unio moreleti var. brindosiana Folin & Bérillon, 1874

(intro'd as intra-sp. of Unio moreleti Folin & Bérillon, 1874)
Folin & Bérillon, 1874. Bull. Soc. Bayonne: 95.

Unio villae var. brindosianus — Germain (1931)
Unio pictorum platyrhynchoideus [sic] — Haas (1940), Haas (1969)
Unio (s.s.) mancus brindosianus — Falkner et al. (2001), Falkner et al. (2002)
Unio mancus brindosianus — Prie (2012)
Unio pictorum — Prié & Puillandre (2014)
Unio mancus mancus — Lopes-Lima et al. (2017)

Unio requieni var. romana Kobelt, 1876

(intro'd as intra-sp. of Unio requienii Michaud, 1831)
Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: 61, pl. 116, fig. 1145 [as ‘Unio romanus’ on plate].

Unio elongatulus lawleyanus [sic] — Haas (1940)

Unio moreletianus Folin & Bérillon, 1877

(new name for Unio moreleti Folin & Bérillon, 1874)
Folin & Bérillon, 1877. Bull. Trimest. Sci. Soc. Borda: 29.

Unio pictorum platyrhynchoideus [sic] — Haas (1940), Haas (1969)

Unio bayonnensis Folin & Bérillon, 1877

Folin & Bérillon, 1877. Bull. Trimest. Sci. Soc. Borda: 29, pl. 1, figs. 1, 3.

Unio villae var. brindosianus — Germain (1931)
Unio pictorum platyrhynchoideus [sic] — Haas (1940), Haas (1969)
Unio mancus brindosianus — Prie (2012)

Unio requienii var. permaxima Dupuy, 1877

(intro'd as intra-sp. of Unio requienii Michaud, 1831)
Dupuy, 1877. J. de Conch. 25: 18, 22.

Unio tumidus var. maximus — Germain (1931)

Unio lusitanus Drouët, 1879

Drouët, 1879. J. de Conch. 27: 327.

Unio villae var. brindosianus — Germain (1931)
Unio pictorum delphinus — Haas (1940), Haas (1969)
Unio delphinus — Araujo et al. (2009)
Unio mancus brindosianus — Prie (2012)

Unio cumensis Kobelt, 1879

Kobelt, 1879. Icon. Land- und Süssw.-Moll. 7: 33, pl. 192, fig. 1952-1953.
SYNTYPES SMF 3690, Lago d’Averno?, Italy.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)
Unio mancus — Nagel (2025)

Unio pinciacus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 294, 362.
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 167 [61].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 201.
IDIOTYPE MNHN_22461, La Marne à Châlons (Marne).

Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio joannisi Locard, 1882

(new name for Unio pictorum var. compressus de Joannis, 1859)
‘Bourguignat’ Locard, 1882. Prodr. Malac. Franç. 1: 296.
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 163 [57].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 196.
IDIOTYPE MNHN_22287, la Seine, au Pecq (Seine-et-Oise).

Unio joannisi — Rochebrune (1903)
Unio (Joannisiana) joannisi — Germain (1904)
Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio gallicus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 296, 365.
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 154 [48].
Bourguignat in Locard, 1893. Coqu. Eau Douce Saumâtre France: 189, fig. 203.
POSSIBLE SYNTYPES MNHN_22231, Le lac du Bourget (Savoie).

Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio torsatellus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 294, 363.
‘Berthier’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 167 [61].
‘Berthier’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 201.

Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio holandrei Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 299, 366.
‘de Saulcy’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 167 [61] [as ‘hollandrei’].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 201 [as ‘hollandrei’].
IDIOTYPE MNHN_22262, Lagny (Seine-et-Marne).

Unio (Hollandriana) [sic] hollandrei [sic] — Germain (1904)
Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio fascellinus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 295, 364.
‘Servain’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 162 [56].
‘Servain’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 196.
SYNTYPE MNHN_22213, l’Étang de Veaux (Nièvre).

Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio bourgeticus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 291, 359.
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 130 [24].
Bourguignat in Locard, 1893. Coqu. Eau Douce Saumâtre France: 156.
POSSIBLE SYNTYPES MNHN_22139, lac du Bourget (Savoie).

Unio mancus bourgeticus — Kobelt & Haas (1910), Prie (2012), Prié & Puillandre (2014)
Unio mancus — Germain (1931)
Unio elongatulus bourgeticus — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio (s.s.) mancus bourgeticus — Falkner et al. (2001), Falkner et al. (2002)
Unio mancus mancus — Lopes-Lima et al. (2017)
Unio pictorum — Araujo et al. (2018)

Unio riciacensis Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 288, 357.
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 139 [33].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 166.
IDIOTYPE MNHN_22493, Mont-sous-Vaudrey (Jura).

Unio riciacensis — Rochebrune (1903)
Unio mancus var. elongatulus — Germain (1931)
Unio elongatulus bourgeticus — Haas (1940), Haas (1969)
Unio mancus bourgeticus — Prie (2012)

Unio orthus Coutagne in Locard, 1882

Coutagne in Locard, 1882. Prodr. Malac. Franç. 1: 288, 357.
‘Coutagne’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 139 [33].
‘Coutagne’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 166.
POSSIBLE SYNTYPE MNHN_22435, l’Albane (Côte-d’Or).

Unio mancus var. elongatulus — Germain (1931)
Unio elongatulus bourgeticus — Haas (1940), Haas (1969)
Unio mancus bourgeticus — Prie (2012)

Unio malafossianus Locard, 1882

‘P. Fagot’ Locard, 1882. Prodr. Malac. Franç. 1: 297.
‘Fagot’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 175 [69].
‘P. Fagot’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 211.

Unio tumidus var. maximus — Germain (1931)
Unio elongatulus rousii — Haas (1940), Haas (1969)

Unio condatinus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 287, 356.
‘Letourneux’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 158 [52].
‘Letourneux’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 189.
IDIOTYPE MNHN_22180, La Marne, à Cholet (Maine-et-Loire).

Unio (Saint-simoniana) condatinus — Germain (1904)
Unio requieni — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio mucidulus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 298, 366.
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 168 [62].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 206, fig. 219.
IDIOTYPE MNHN_22384, La Saône, à St-Germain-au-Mont-d'Or.

Unio mucidulus — Germain (1904)
Unio requieni var. pornae — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio gobionum Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 296, 364.
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 158 [52].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 193.
IDIOTYPE MNHN_22253, canal du Midi, à Carcassonne.

Unio requieni — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)
Unio mancus requienii — Prie (2012)

Unio saintsimonianus Bourguignat in Locard, 1882

(renamed Unio saintsimoni Germain, 1904)
Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 287, 357 [as ‘saint-simonianus’].
‘P. Fagot’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 158 [52] [as ‘Saint-Simonianus’].
‘P. Fagot’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 192 [as ‘saint-simonianus’].
POSSIBLE SYNTYPES MNHN_22511, Le canal du Midi, à Villefranche-Lauraguais.

Unio (Saint-simoniana) saint-simoni — Germain (1904)
Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio orthellus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 288, 357.
Bérenguier, 1882. Faune malac. Var: 97.
‘Bérenguier’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 140 [34].
Bérenguier in Locard, 1893. Coqu. Eau Douce Saumâtre France: 166.
LECTOTYPE MNHN_22433 (by Graf, 2011: 495), La Grande-Garonne, à Fréjus (Var).

Unio mancus var. elongatulus — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio jourdheuili Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 296, 364.
‘Ray’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 163 [57].
‘Ray’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 198, fig. 212.
IDIOTYPE MNHN_22288, canal de Givors, à Givors (Rhône).

Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio foroguliensis ‘Bérenguier’ of Authors

(incorrect original spelling of Unio forojuliensis Bourguignat in Locard, 1882)
‘Bérenguier’ of Authors.
Locard, 1882. Prodr. Malac. Franç. 1: 293.
Haas, 1969. Das Tierreich 88: 37.
Prie, 2012. MalaCo 8: 431.
AUTOMATIC MNHN_22223, Fréjus (Var).

Unio fabaeformis Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 294, 362 [as ‘fabæformis’].
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 156 [50], 230 [124] [as ‘fabæformis’].
Bourguignat in Locard, 1893. Coqu. Eau Douce Saumâtre France: 188 [as ‘fabiformis’].
POSSIBLE SYNTYPE MNHN_22208, La Rhône à Arles.

Unio consentaneus var. jacquemini — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio pornae Locard, 1882

‘Bourguignat’ Locard, 1882. Prodr. Malac. Franç. 1: 295, 363 [as ‘pornæ’].
Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 52 [as ‘pornæ’].
LECTOTYPE MNHN_22465 (by Graf, 2011: 498), La Saône, à Mâcon (Saône-et-Loire).

Unio pornæ — Rochebrune (1903)
Unio (Porniana) pornae — Germain (1904)
Unio requieni var. pornae — Germain (1931)
Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio meretricis Locard, 1882

Stabile, 1845. Faun. Lug.: 62, fig. 76.
‘Bourguignat’ Locard, 1882. Prodr. Malac. Franç. 1: 295, 363.
Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 53 [as ‘meretrix’].
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 156 [50].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 91, fig. 205.
IDIOTYPE MNHN_22364, La Drée, à Épinac (Saône-et-Loire).

Unio meretricis — Rochebrune (1903)
Unio (Meretricisiana) meretrecis [sic] — Germain (1904)
Unio requieni — Germain (1931)
Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)
Unio mancus requienii — Prie (2012)

Unio moltenii Adami, 1882

Adami, 1882. Bull. Soc. Malac. Ital. 8: 131, pl. 0, figs. 3, 5, 7.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio moltenii var. umbrica Adami, 1882

(intro'd as intra-sp. of Unio moltenii Adami, 1882)
Adami, 1882. Bull. Soc. Malac. Ital. 8: 132, pl. 0, figs. 4, 6, 8.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio dolfusianus Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 299, 366.
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 167 [61; as ‘dollfusianus’].
Bourguignat in Locard, 1893. Coqu. Eau Douce Saumâtre France: 200, fig. 214.
IDIOTYPE MNHN_22197, l’Oise à Creil.

Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio forojuliensis Bourguignat in Locard, 1882

(correct name for Unio foroguliensis ‘Bérenguier’ of Authors)
Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 293, 361 [as ‘foroguliensis’].
Bérenguier, 1882. Faune malac. Var: 95.
‘Bérenguier’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 150 [44].
‘Bérenguier’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 181.
LECTOTYPE MNHN_22223 (by Graf, 2011: 475), Fréjus (Var).

Unio (Turtoniana) forojuliensis — Caziot (1910)
Unio turtoni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus turtonii — Prie (2012)

Unio berenguieri Bourguignat in Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 292, 361.
Bourguignat in Bérenguier, 1882. Faune malac. Var: 100.
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 153 [47].
Bourguignat in Locard, 1893. Coqu. Eau Douce Saumâtre France: 182.
SYNTYPES MNHN_22129, Canal des Moulins à Roquebrune (Var).

Unio (Berenguieriane) [sic] berenguieri — Caziot (1910)
Unio turtoni — Germain (1931)
Unio mancus turtonii — Prie (2012)

Unio benoiti Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 26.

Unio elongatulus gargottae — Haas (1940), Haas (1969)

Unio monterosati Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 40.

Unio elongatulus gargottae — Haas (1940), Haas (1969)

Unio bivonianus Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 43.
HOLOTYPE SMF 10732, l’Anapo, près Syracuse, Italy.

Unio elongatulus gargottae — Haas (1940), Haas (1969)
Unio mancus — Nagel (2025)

Unio caficianus Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 55.

Unio requieni — Germain (1931)
Unio elongatulus gargottae — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio aradasi Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 42.

Unio elongatulus gargottae — Haas (1969)

Unio etruscus Drouët, 1883

Drouët, 1883. Unionidae de l’Italie: 48.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio campanus Drouët, 1883

Drouët, 1883. Unionidae de l’Italie: 49.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio meridionalis Drouët, 1883

Drouët, 1883. Unionidae de l’Italie: 51.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio polii Drouët, 1883

Drouët, 1883. Unionidae de l’Italie: 27.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio blanci Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 44.

Unio elongatulus lawleyianus — Haas (1969)

Unio latinus Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 12.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio campsus Uzielli in Bourguignat, 1883

Uzielli in Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 17.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio uziellii Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 27.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio pisanus Uzielli in Bourguignat, 1883

Uzielli in Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 29.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio gentiluomoi Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 35.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio pecchiolii Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 37.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio isseli Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 47.

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio danconae Bourguignat, 1883

Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 54 [as ‘d’anconæ’].

Unio elongatulus lawleyanus [sic] — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio campanus H. Blanc in Bourguignat, 1883

(homonym of Unio campanus Drouët, 1883)
H. Blanc in Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 46.

Unio lawleyanus ‘Gentiluomo’ of Authors

(error for Unio lawleyianus Gentiluomo, 1868)
‘Gentiluomo’ of Authors.
Kobelt, 1884. Icon. Land- und Süssw.-Moll. 1: 65.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 683.
Simpson, 1914. Descr. Cat. Naiades: 533.
Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 127.

Unio mongazonae Servain, 1887

Servain, 1887. Bull. Soc. Malac. France 4: 253 [as ‘mongazonæ’].

Unio mongazonæ — Rochebrune (1903)
Unio villae var. brindosianus — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio asticus Servain, 1887

Servain, 1887. Bull. Soc. Malac. France 4: 259.
Servain, 1888. Bull. Soc. Malac. France 5: 320.

Unio requieni — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio eutrapelus Servain, 1887

Servain, 1887. Bull. Soc. Malac. France 4: 260.
Servain, 1888. Bull. Soc. Malac. France 5: 320.

Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio suborbicularis Drouët, 1888

Drouët, 1888. J. de Conch. 36: 107.
Drouët, 1889. Mém. Acad. Sci. Dijon 1: 77, pl. 1, fig. 5.
SYNTYPE MNHN_MP_0113, Troyes [in shell].

Unio mancus — Germain (1931)
Unio mancus mancus — Prie (2012)

Unio hammoniensis Servain, 1888

Servain, 1888. Bull. Soc. Malac. France 5: 319.

Unio plebeius Drouët, 1888

Drouët, 1888. J. de Conch. 36: 105.
SYNTYPE MNHN_MP_0082, [no locality available - Europe].

Unio (Falsusiana) falsus — Germain (1904)
Unio requieni var. pornae — Germain (1931)

Unio lacustris Drouët, 1888

(renamed Unio limnaeus Westerlund, 1890; homonym of Unio tumidus var. lacustris Rossmässler, 1838)
Drouët, 1888. J. de Conch. 36: 106.
Drouët, 1889. Mém. Acad. Sci. Dijon 1: 67, pl. 2, fig. 2.

Unio campylus Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 165 [59], 243 [137].
Bourguignat in Locard, 1893. Coqu. Eau Douce Saumâtre France: 197.
LECTOTYPE MNHN_22157 (by Graf, 2011: 466), [illegible] Mortagne (Vendrée).

Unio (Cyrtusiana) campylus — Germain (1904)
Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio oesiacus Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 164 [58], 241 [135] [as ‘œsiacus’].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 198 [as ‘œsiacus’].
LECTOTYPE MNHN_22425 (by Graf, 2011: 494), L’Oise, à Pontoise.

Unio requieni — Germain (1931)
Unio pictorum pictorum — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio hydrelus Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], 235 [129].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 192, fig. 206.
LECTOTYPE MNHN_22264 (by Graf, 2011: 479), Brainans (Jura).

Unio requieni — Germain (1931)
Unio pictorum rostratus — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio exauratus Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 145 [39], 210 [104].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 175.
LECTOTYPE MNHN_22206 (by Graf, 2011: 473), La Siagne, à Cannes (Alpes-Maritimes).

Unio (Lemotheuxiana) exauratus — Caziot (1910)
Unio capigliolo — Germain (1931)
Unio elongatulus turtoni — Haas (1940), Haas (1969)
Unio mancus turtonii — Prie (2012)

Unio antimoquinianus Locard, 1889

Dupuy, 1843. Essai Moll. Terr. Fluv. du Gers: fig. 3 [as ‘moquinianus’]. [in part]
Locard, 1889. Contr. Faune Malacol. Franc. 13: 153 [47], 227 [121].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 179.
SYNTYPE MNHN_22106, l'Echez, à Vic-de-Bigorre.

Unio consentaneus var. moquini — Germain (1931)
Unio elongatulus moquinianus — Haas (1940), Haas (1969), Fauna Europaea (2012)
Unio mancus — Araujo et al. (2009)
Unio mancus moquinianus — Prie (2012)

Unio oberthurianus Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 168 [62], 248 [142].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 206.
IDIOTYPE MNHN_22421, La Grosne, à la Ferté (Saône-et-Loire).

Unio requieni var. pornae — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio arcuatulus Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 165 [59], 244 [138].
Bourguignat in Locard, 1893. Coqu. Eau Douce Saumâtre France: 197.

Unio (Cyrtusiana) arcuatulus — Germain (1904)
Unio requieni var. pornae — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio amblyus Locard, 1889

‘Castro’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 152 [46], 225 [119].
‘Castro’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 184, fig. 198.
‘Castro’ Locard, 1899. Conchyliol. Portug.: 224.
LECTOTYPE MNHN_22097 (by Graf, 2011: 458), La Loire, à Balbigny (Loire).

Unio (Moreletiana) amblyus — Germain (1904)
Unio villae — Germain (1931)
Unio elongatulus mancus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus mancus — Prie (2012)

Unio triffoiricus Bourguignat in Locard, 1889

‘Bourguignat’ Schröder, 1885. Bull. Soc. Malac. France 2: 229. [nomen nudum]
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 171 [65], 252 [146].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 199.
LECTOTYPE MNHN_22576 (by Graf, 2011: 509), le Rhône, à Beaucaire (Gard).

Unio (Hispaniana) triffoiricus — Germain (1904)
Unio triffoiricus — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio frayssianus Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 155 [49], 227 [121].
‘Coutagne’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 189.
SYNTYPES MNHN_22226, Étang de Meyranne (Bouches-du-Rhône).

Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio meyrannicus Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 155 [49], 228 [122].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 190.
POSSIBLE SYNTYPES MNHN_22367, Étang de Meyranne (Bouches-du-Rhône).

Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio aramonensis Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 156 [50], 231 [125].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 191.
LECTOTYPE MNHN_22107 (by Graf, 2011: 459), le Rhône, Aramon (Gard).

Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio vardonicus Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], 232 [126].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 192.
LECTOTYPE MNHN_22596 (by Graf, 2011: 510), Aramon (Gard).

Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio talus Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 161 [55], 240 [134].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 193.
IDIOTYPE MNHN_22571, canal de Fresquel (Aude).

Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio royianus Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 171 [65], 255 [149].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 202, fig. 215 [as ‘royianus’].
LECTOTYPE MNHN_22509 (by Graf, 2011: 502), fossés du fort de la Vitriolerie, à Lyon.

Unio requieni — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio aegericus Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 169 [63], 250 [144] [as ‘ægericus’].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 203 [as ‘ægericus’].
HOLOTYPE (MONOTYPY) MNHN_22086, La Baise, à Valence (Gers).

Unio tumidus var. maximus — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio mucidulinus Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 168 [62], 249 [143].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 206.
LECTOTYPE MNHN_22382 (by Graf, 2011: 492), Varennes (Jura).

Unio requieni var. pornae — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio atharsus Locard, 1889

‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 169 [63], 251 [145].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 204.
LECTOTYPE MNHN_22117 (by Graf, 2011: 461), Varennes (Jura).

Unio requieni var. pornae — Germain (1931)
Unio pictorum ravoisieri — Haas (1940)
Unio elongatulus requienii — Haas (1969)
Unio mancus requienii — Prie (2012)

Unio albanorum Locard, 1889

‘F. Pacôme’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 151 [45], 222 [116].
‘F. Pacôme’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 184.
LECTOTYPE MNHN_22088 (by Graf, 2011: 456), La Grande-Garonne, à Fréjus (Var).

Unio (Berenguieriane) [sic] albanorum — Caziot (1910)
Unio requieni — Germain (1931)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio salmurensis Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], 234 [128].
‘Servain’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 192.
SYNTYPE MNHN_22512, La Loire, à Orléans (Loiret).

Unio (Requieniana) salmurensis — Germain (1904)
Unio requieni — Germain (1931)
Unio mancus requienii — Prie (2012)

Unio ararisianus Bourguignat in Locard, 1889

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 155 [49], 229 [123].
‘Coutagne’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 190.
SYNTYPE MNHN_22109, La Saône à Lyon.

Unio requieni — Germain (1931)
Unio mancus requienii — Prie (2012)

Unio hollandrei ‘de Saulcy’ of Authors

(error for Unio holandrei Bourguignat in Locard, 1882)
‘de Saulcy’ of Authors.
Locard, 1889. Contr. Faune Malacol. Franc. 13: 167 [61].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 201.
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 278.
Germain, 1931. Faune de France 22: 736.
Prie, 2012. MalaCo 8: 431.

Unio dollfusianus ‘Bourguignat’ of Authors

(error for Unio dolfusianus Bourguignat in Locard, 1882)
‘Bourguignat’ of Authors.
Locard, 1889. Contr. Faune Malacol. Franc. 13: 167 [61].
Germain, 1931. Faune de France 22: 736.
Prie, 2012. MalaCo 8: 431.

Unio mucidulinus var. curta Locard, 1889

(homonym of Unio curtus Lea, 1859; intro'd as intra-sp. of Unio mucidulinus Locard, 1889)
Locard, 1889. Contr. Faune Malacol. Franc. 13: 250 [144].

Unio royanus ‘Locard’ of Authors

(error for Unio royianus Locard, 1889)
‘Locard’ of Authors.
Locard, 1889. Contr. Faune Malacol. Franc. 13: 171 [65].
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 110.
Germain, 1931. Faune de France 22: 737.
Prie, 2012. MalaCo 8: 432.

Unio bramicus Baichère, 1890

Baichère, 1890. Bull. Soc. Malac. France 7: 125.

Unio requieni — Germain (1931)
Unio pictorum rostratus — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio baicheri Baichère, 1890

‘Locard’ Baichère, 1890. Bull. Soc. Malac. France 7: 119.
Locard, 1893. Coqu. Eau Douce Saumâtre France: 186.

Unio villae — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio limnaeus Westerlund, 1890

(new name for Unio lacustris Drouët, 1888)
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 136 [as ‘limnæus’].

Unio jourdeuilhi ‘Ray in Locard’ of Authors

(error for Unio jourdheuili Bourguignat in Locard, 1882)
‘Ray in Locard’ of Authors.
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 138.
Baichère, 1890. Bull. Soc. Malac. France 7: 124.

Unio arelatus Locard, 1893

‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 188.

Unio consentaneus var. jacquemini — Germain (1931)
Unio elongatulus requienii — Haas (1940), Haas (1969)
Unio mancus requienii — Prie (2012)

Unio almenarensis Drouët, 1893

Drouët, 1893. J. de Conch. 41: 171.
Drouët, 1893. Mém. Acad. Sci. Dijon 4: 62, pl. 1, fig. 2.

Unio elongatulus valentinus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009), Fauna Europaea (2012)
Unio mancus mancus — Prie (2012)

Unio prolatus Locard, 1893

‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 182.

Unio turtoni — Germain (1931)
Unio mancus turtonii — Prie (2012)

Unio linguiformis Locard, 1893

‘Wilcock’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 182.

Unio turtoni — Germain (1931)
Unio mancus turtonii — Prie (2012)

Unio biformis Monterosato, 1896

Monterosato, 1896. Naturalista Siciliano 15: 13, text fig.
‘Monterosato mss.’ Kobelt, 1912. Icon. Land- und Süssw.-Moll. 18: 38, pl. 499, figs. 2643-2644.
SYNTYPES SMF 3688, Salaparuta sul Belice, Italy.

Unio elongatulus gargottae — Haas (1940), Haas (1969)
Unio mancus — Nagel (2025)

Unio bipartitus Monterosato, 1896

Monterosato, 1896. Naturalista Siciliano 15: 18, text fig.
‘Monterosato mss.’ Kobelt, 1912. Icon. Land- und Süssw.-Moll. 18: 36, pl. 498, fig. 2641.
SYNTYPE SMF 10722, Marcellino River near Augusta, Italy.

Unio elongatulus gargottae — Haas (1940), Haas (1969)
Unio mancus — Nagel (2025)

Unio bitortus Monterosato, 1896

Monterosato, 1896. Naturalista Siciliano 15: 12, text fig.
‘Monterosato mss.’ Kobelt, 1912. Icon. Land- und Süssw.-Moll. 18: 37, pl. 499, fig. 2642 [as ‘bitortis’].
SYNTYPE SMF 10726, Torto River, Italy.

Unio elongatulus gargottae — Haas (1940), Haas (1969)
Unio mancus — Nagel (2025)

Unio bivonianus var. cuspidata Monterosato, 1896

(homonym of Unio cuspidatus Lea, 1872; intro'd as intra-sp. of Unio bivonianus Bourguignat, 1883)
Monterosato, 1896. Naturalista Siciliano 15: 16, text fig.
‘Monterosato mss.’ Kobelt, 1912. Icon. Land- und Süssw.-Moll. 18: 35, pl. 498, fig. 2640 [as ‘Unio (aradae var.) cuspidatus’].
SYNTYPE SMF 10715, “im Simeto... bei Catania” Italy.

Unio elongatulus gargottae — Haas (1940), Haas (1969)
Unio mancus — Nagel (2025)

Unio valens Drouët, 1897

Drouët, 1897. J. de Conch.: 122.
Drouët, 1898. Mém. Acad. Sci. Dijon ??: 50, pl. 1, fig. 5.

Unio triffoiricus — Germain (1931)

Unio gibberulus Drouët, 1898

Drouët, 1898. Mém. Acad. Sci. Dijon ??: 55.

Unio requieni — Germain (1931)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

Unio rostratus var. amplus Drouët, 1898

(intro'd as intra-sp. of Unio rostrata Lamarck, 1819; homonym of Unio amplus Lea, 1872)
Drouët, 1898. Mém. Acad. Sci. Dijon ??: 89.

Unio tumidus var. maximus — Germain (1931)

Unio lardelianus ‘Pecchioli’ of Authors

(error for Unio larderelianus Pecchioli, 1869)
‘Pecchioli’ of Authors.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 684.
Simpson, 1914. Descr. Cat. Naiades: 535.

Unio meretrecis ‘Bourguignat’ of Authors

(error for Unio meretricis Locard, 1882)
‘Bourguignat’ of Authors.
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 267, footnote.
Germain, 1931. Faune de France 22: 737.
Prie, 2012. MalaCo 8: 432.

Unio amblyus var. nigerrimus Germain, 1904

(intro'd as intra-sp. of Unio amblyus Locard, 1889; homonym of Unio nigerrimus Lea, 1852)
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 266 [28].

Unio (Moreletiana) amblyus nigerrimus — Germain (1904)

Unio subniger Germain, 1904

(homonym of Unio subniger Lea, 1857)
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 269 [31], footnote.

Unio saintsimoni Germain, 1904

(new name for Unio saintsimonianus Bourguignat in Locard, 1882)
‘Fagot’ Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 270 [32] [as ‘saint-simoni’].

Unio (Saint-simoniana) saint-simoni — Germain (1904)

Unio gestroianus var. rubiginosus Germain, 1904

(intro'd as intra-sp. of Unio gestroianus Bourguignat in Locard, 1882; homonym of Unio rubiginosus Lea, 1829)
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 271 [33].

Unio (Porniana) gestroianus rubiginosus — Germain (1904)

Unio pornae var. viridis Germain, 1904

(intro'd as intra-sp. of Unio pornae Locard, 1882; homonym of Unio (Elliptio) viridis Rafinesque, 1820)
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 272 [34].

Unio (Porniana) pornae viridis — Germain (1904)

Unio triffoiricus var. mayennensis Germain, 1904

(intro'd as intra-sp. of Unio triffoiricus Bourguignat in Locard, 1889)
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 279 [41], pl. 2, fig. 38.

Unio (Hispaniana) triffoiricus mayennensis — Germain (1904)

Unio voltzii var. ursannensis Kobelt & Haas, 1910

(intro'd as intra-sp. of Unio (? requienii var.) voltzii Kobelt & Haas, 1910)
Kobelt & Haas, 1910. Icon. Land- und Süssw.-Moll. 17: 35, pl. 467, fig. 2518.

Unio voltzii var. ursannensis — Kobelt & Haas (1910)
Unio elongatulus bourgeticus — Haas (1940), Haas (1969)
Unio mancus bourgeticus — Prie (2012)

Unio subindentatus Adami in Kobelt, 1912

Adami in Kobelt, 1912. Icon. Land- und Süssw.-Moll. 19: 40, pl. 501, fig. 2648.

Unio elongatulus gargottae — Haas (1940)
Unio elongatulus lawleyianus — Haas (1969)

Unio bitortis Kobelt, 1912

(error for Unio bitortus Monterosato, 1896)
‘Monterosato’ Kobelt, 1912. Icon. Land- und Süssw.-Moll. 18: 37, index “Nachtrag...”.

Unio mancus — Nagel (2025)

Unio consentaneus var. moquini Germain, 1931

(new name for Unio moquinianus Dupuy, 1843)
Germain, 1931. Faune de France 22: 734, text fig. 829.

Unio consentaneus var. moquini — Germain (1931)
Unio elongatulus moquinianus — Haas (1940), Haas (1969)
Unio mancus — Araujo et al. (2009)
Unio mancus moquinianus — Prie (2012)

Unio lusitanicus ‘Drouët’ of Authors

(error for Unio lusitanus Drouët, 1879)
‘Drouët’ of Authors.
Germain, 1931. Faune de France 22: 736.
Prie, 2012. MalaCo 8: 434.

Unio fascinellus ‘Servain’ of Authors

(error for Unio fascellinus Bourguignat in Locard, 1882)
‘Servain’ of Authors.
Germain, 1931. Faune de France 22: 736.
Prie, 2012. MalaCo 8: 431.

Unio baudinii ‘Rossmässler’ of Authors

(error for Unio bandinii Rossmässler, 1837)
‘Rossmässler’ of Authors.
Haas, 1969. Das Tierreich 88: 35.
Fauna Europaea, 2012. Fauna Europa: [web].
Prie, 2012. MalaCo 8: 430.

Unio planci Drouet, 1883 of Authors

Drouet, 1883 of Authors.

Unio elongatulus lawleyanus [sic] — Haas (1940)

Unio blanci forma armusianus Uzielli of Authors

Uzielli of Authors.

Unio pictorum Draparnaud, 1806

(misidentified reference to Mya pictorum Linnaeus, 1758)
Draparnaud, 1806. Hist. Moll. France: 131, pl. 11, figs. 4 [var. c]. [in part]

Unio (Requieniana) salmurensis — Germain (1904)
Unio requieni — Germain (1931)

Unio pictorum Draparnaud, 1806

(misidentified reference to Mya pictorum Linnaeus, 1758)
‘Linn.’ Draparnaud, 1806. Hist. Moll. France: 131, pl. 11, figs. 1-2. [in part]

Unio requieni — Germain (1931)

Unio arcuata Jacquemin, 1835

(misidentified reference to Unio arcuata Bouchard-Chantereaux, 1838)
Jacquemin, 1835. Guide Ror. Arles: 123.

Unio consentaneus var. jacquemini — Germain (1931)

Unio requeni Jay, 1835

(error for Unio requienii Michaud, 1831)
Jay, 1835. Cat. Rec. Shells: 16 [as ‘réquéni’].

Unio turtoni Philippi, 1836

(reference to Unio turtonii Payraudeau, 1826)
Philippi, 1836. Enum. Moll. Siciliae 1: 67.
Philippi, 1844. Enum. Moll. Siciliae 2: 49.

Unio requieni — Germain (1931)

Unio subdentatus Rossmässler, 1837

(intro'd as syn of Unio bandinii Rossmässler, 1837)
‘Ziegl.’ Rossmässler, 1837. Icon. Land- und Süssw.-Moll. 1 (5-6): 22.

Unio moquinianus Dupuy, 1843

(reference to Unio moquinianus Dupuy, 1843)
Dupuy, 1843. Essai Moll. Terr. Fluv. du Gers: fig. 3. [in part]

Unio turtoni Rossmässler, 1844

(reference to Unio turtonii Payraudeau, 1826)
Rossmässler, 1844. Icon. Land- und Süssw.-Moll. 2 (6): 25, pl. 35, fig. 492.

Unio requieni Stabile, 1845

(reference to Unio requienii Michaud, 1831)
Stabile, 1845. Faun. Lug.: 62, fig. 76.

Unio requieni — Germain (1931)

Unio tumidus Stabile, 1845

(misidentified reference to Unio tumidus Philipsson in Retzius, 1788)
Stabile, 1845. Faun. Lug.: 61, fig. 74.

Unio longirostris Stabile, 1845

(misidentified reference to Unio longirostris Rossmässler, 1836)
Stabile, 1845. Faun. Lug.: 60, fig. 72.

Unio turtoni Dupuy, 1850

(reference to Unio turtonii Payraudeau, 1826)
Dupuy, 1850. Hist. Natur. Moll. France (4): pl. 27, fig. 17.

Unio turtoni — Germain (1931)

Unio lobatata Lea, 1852

(error for Unio lobata Philippi, 1836)
‘De Cr. and J.’ Lea, 1852. Synopsis Fam. Naiades: 37.
‘De Cr. and J.’ Lea, 1870. Synopsis Fam. Naiades: 59.

Unio ronsii Dupuy, 1852

(error for Unio rousii Dupuy, 1849)
Dupuy, 1852. Hist. Natur. Moll. France (6): 653.
‘Dup.’ Lea, 1870. Synopsis Fam. Naiades: 59.

Unio requieni var. rousi — Germain (1931)

Unio turtoni Drouët, 1852

(reference to Unio turtonii Payraudeau, 1826)
Drouët, 1852. Etudes Nayades de la France: pl. 6, fig. 1.

Unio consentaneus var. ardusianus — Germain (1931)

Unio siculus Hanley, 1856

(misidentified reference to Potomida sicula Swainson, 1840)
‘Swainson’ Hanley, 1856. Illustr. Descr. Cat. Rec. Bivalve Shells: 383, pl. 20, fig. 19.

Unio (sec. Lymnium) pictorum — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) pictorum — Simpson (1914)
Unio elongatulus gargottae — Haas (1969)

Unio requieni var. minima l’Hôpital, 1859

(reference to Unio requienii var. minima Drouët, 1857)
‘Drouët’ l’Hôpital, 1859. Cat. moll. Caen: 61.

Unio villae — Germain (1931)

Unio siculus Sowerby, 1868

(misidentified reference to Potomida sicula Swainson, 1840)
‘Swainson’ Sowerby, 1868. Conch. Icon. 16: pl. 71, sp. 364.

Unio (sec. Lymnium) turtoni — Simpson (1900)
Unio (sec. Lymnium) (Group U. pictorum) turtonii — Simpson (1914)

Unio pictorum Benoit, 1875

(misidentified reference to Mya pictorum Linnaeus, 1758)
‘Lamarck’ Benoit, 1875. Bull. Soc. Malac. Ital. 1: 163.

Unio blauneri Kobelt, 1876

(misidentified reference to Unio requienii var. blauneri Stabile, 1859)
‘Shuttleworth’ Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: 63, pl. 118, 1149.

Unio aradasii Kobelt, 1876

(error for Unio aradae Philippi, 1844; reference to Unio aradae Philippi, 1844)
Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: pl. 117, fig. 1147. [in part]

Unio elongatulus gargottae — Haas (1940)

Unio aradasii Kobelt, 1876

(error for Unio aradae Philippi, 1844; reference to Unio aradae Philippi, 1844)
Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: pl. 117, fig. 1146. [in part]

Unio requieni Kobelt, 1876

(reference to Unio requienii Michaud, 1831)
Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: 63, pl. 117, fig. 1148.

Unio bayonensis Drouët, 1879

(error for Unio bayonnensis Folin & Bérillon, 1877)
‘Folin & Bérillon’ Drouët, 1879. J. de Conch. 27: 332.
‘De Folin & Bérillon’ Fagot, 1892. Bull. Soc. Ramond 27: 38.

Unio cumanus Kobelt, 1881

(error for Unio cumensis Kobelt, 1879)
Kobelt, 1881. Cat. Binnenconch.: 160.
Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 31.
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 159.

Unio meretrix Bourguignat, 1883

(error for Unio meretricis Locard, 1882)
Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 53.

Unio requieni — Germain (1931)
Unio mancus requienii — Prie (2012)

Unio laderelianus Bourguignat, 1883

(error for Unio larderelianus Pecchioli, 1869)
‘Pecchioli’ Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 36.

Unio nuperus Locard, 1889

‘Parreys’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 139 [33], footnote. [nomen nudum]

Unio elongatulus sandrii — Haas (1940)

Unio germanjanicus Locard, 1889

‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 139 [33], footnote. [nomen nudum]

Unio monterosatoi Locard, 1889

(error for Unio monterosati Bourguignat, 1883)
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 156 [50].
‘Bgt.’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 157.

Unio mancus var. minor Locard, 1889

Locard, 1889. Contr. Faune Malacol. Franc. 13: 130 [24], footnote. [nomen nudum]

Unio requieni var. elongata Locard, 1889

(intro'd as intra-sp. of Unio requienii Michaud, 1831; homonym of Unio elongata Lamarck, 1819)
Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], footnote. [nomen nudum]

Unio hammonis Locard, 1889

(error for Unio hammoniensis Servain, 1888)
‘Servain’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 168 [62].

Unio anconae Paetel, 1890

(error for Unio danconae Bourguignat, 1883)
‘Bourguignat’ Paetel, 1890. Cat. Conch.-Samml. 3: 144.

Unio aradasis Westerlund, 1890

(error for Unio aradasii Kobelt, 1876)
‘Kob.’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 157.

Unio ricianensis Westerlund, 1890

(error for Unio riciacensis Bourguignat in Locard, 1882)
‘Bgt.’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 165.

Unio alleroni Locard, 1893

(error for Unio aleronii Companyo & Massot, 1845)
‘Companyo et Massot’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 182.

Unio fabiformis Locard, 1893

(error for Unio fabaeformis Bourguignat in Locard, 1882)
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 188.

Unio bandanii Simpson, 1900

(error for Unio bandinii Rossmässler, 1837)
‘Küster’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 686.

Unio pleibeius Germain, 1904

(error for Unio plebeius Drouët, 1888)
‘Drouet’ Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 273 [35].

Unio voltzii var. ursanensis Kobelt & Haas, 1910

(error for Unio voltzii var. ursannensis Kobelt & Haas, 1910)
Kobelt & Haas, 1910. Icon. Land- und Süssw.-Moll. 17: 35.

Unio orbus Germain, 1931

(error for Unio orthus Coutagne in Locard, 1882)
‘Locard’ Germain, 1931. Faune de France 22: 727.

Unio ricconianus Haas, 1940

(intro'd as syn of Unio gargottae Philippi, 1836)
‘Monterosato’ Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 127.

Unio elongatulus gargottae — Haas (1940), Haas (1969)

Unio pincianus Haas, 1940

(error for Unio pinciacus Bourguignat in Locard, 1882)
Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 121.
Haas, 1969. Das Tierreich 88: 23.

Unio hydrellus Haas, 1940

(error for Unio hydrelus Locard, 1889)
‘Locard’ Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 122.

Unio lingulformis Prie, 2012

(error for Unio linguiformis Locard, 1893)
‘Wilcock, Locard’ Prie, 2012. MalaCo 8: 431.

Unio bramichus Prie, 2012

(error for Unio bramicus Baichère, 1890)
‘Baichère’ Prie, 2012. MalaCo 8: 431.