Unio manca Lamarck, 1819
Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 80, sp. 43.
Type(s): LECTOTYPE MNHN_MPL_0033, Bourgogne dans le Dree.

Unio (sec. Lymnium) pictorum — Simpson (1900), Simpson (1914)
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), ... Wu et al. (2024), Wu et al. (2024), Dai et al. (2024), Hou et al. (2024), Dai et al. (2025)
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)
Unio mancus mancus — Prie et al. (2012), Prie (2012), Prié & Puillandre (2014), Lopes-Lima et al. (2017), Marrone et al. (2019)

Unio pictorum Guérin-Méneville, 1823
‘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), Simpson (1914)

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

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

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

Unio (sec. Lymnium) turtoni — Simpson (1900), 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)
Unio mancus — Araujo et al. (2018)

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

Unio (sec. Lymnium) turtoni — Simpson (1900), Simpson (1914)
Unio (Requieniana) requieni — Germain (1904)
Unio (Groupe des Requieniana) requieni — Caziot (1907)
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)
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.
Type(s): HOLOTYPE USNM_86159, [no locality available - Europe].

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

Unio gargottae Philippi, 1836
Philippi, 1836. Enum. Moll. Siciliae 1: 66.

Margaritana crassa — Simpson (1900), 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)

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), Simpson (1914)
Unio elongatulus gargottae — Haas (1940), Haas (1969)

Unio bandini Küster, 1837
Küster, 1837. Icones Moll. Test. 5-6: 22, pl. 24, fig. 341.

Unio (sec. Lymnium) batavus — Simpson (1900), Simpson (1914)
Unio elongatulus turtoni — Haas (1940)

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), Simpson (1914)
Unio elongatulus turtoni — Haas (1969), Fauna Europaea (2012)
Unio mancus turtonii — Prie (2012)

Unio arcuata Bouchard-Chantereaux, 1838
Bouchard-Chantereaux, 1838. Cat. Moll. Terr. Fluv. Départ. Pas-de-Calais: 91, pl. 1, fig. 1-2.

Margaritana auricularia — Germain (1931)
Unio consentaneus var. moquini — Germain (1931)
Unio crassus batavus — Haas (1940), Haas (1969)
Unio mancus moquinianus — Prie (2012)

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), 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 moquinianus Dupuy, 1843
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.
Type(s): SYNTYPES UMMZ_113537,  l’Echez a Bigen, Bigorre, France.

Unio (sec. Lymnium) batavus — Simpson (1900), 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 aradae Philippi, 1844
Philippi, 1844. Enum. Moll. Siciliae 3: 49.

Unio (sec. Lymnium) pictorum — Simpson (1900), Simpson (1914)
Unio aradae — Kobelt (1912)
Unio elongatulus gargottae — Haas (1940), Haas (1969)

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

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

Unio (sec. Lymnium) turtoni — Simpson (1900), 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. oblongus Moquin-Tandon, 1855
Moquin-Tandon, 1855. Hist. Natur. Moll. France 2: 573.

Unio moquinianus var. subtriangularis Moquin-Tandon, 1855
‘Dup.!, fig. 2’ Moquin-Tandon, 1855. Hist. Natur. Moll. France 2: 573.

Unio requienii var. minima Drouët, 1857
Drouët, 1857. Étud. Naïades. France, Unio: 97, pl. 7, fig. 2.

Unio requieni — Germain (1931)

Unio pictorum var. compressus de Joannis, 1859
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. abbreviatus de Joannis, 1859
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 290, pl. 11, fig. 7.

Unio requienii var. calami de Joannis, 1859
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 11, fig. 3.

Unio requienii var. cuneatus de Joannis, 1859
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 10, fig. 7.

— Germain (1904)

Unio requienii var. cuneolus de Joannis, 1859
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 292, pl. 11, fig. 5.

Unio requienii var. rhyncoideus de Joannis, 1859
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 290, pl. 11, fig. 1.

— Germain (1904)

Unio requienii var. rostratus de Joannis, 1859
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 10, fig. 6.

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

Unio amnicus var. sabaudina Bourguignat, 1864
Bourguignat, 1864. Malac. Aix-les-Baines: pl. 3, figs. 9-11.

Unio mancus — Kobelt & Haas (1910)

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

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

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

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

Unio requienii crassulus Drouët, 1867
Drouët, 1867. Moll. Terr. Fluv. Code-d’Or: 102.

— Lopes-Lima et al. (2024)

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

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

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 mancus brindosianus — Prie (2012)

Unio moreleti var. brindosiana 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
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 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 moreletianus Folin & Bérillon, 1877
Folin & Bérillon, 1877. Bull. Trimest. Sci. Soc. Borda: 29.

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

Unio requienii var. permaxima Dupuy, 1877
Dupuy, 1877. J. de Conch. 25: 18, 22.

Unio tumidus var. maximus — Germain (1931)

Unio cumensis Kobelt, 1879
Kobelt, 1879. Icon. Land- und Süssw.-Moll. 7: 33, pl. 192, fig. 1952-1953.

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

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 berenguieri 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.
Type(s): SYNTYPES MNHN_22129, Canal des Moulins à Roquebrune (Var).

Unio (Berenguieriane) [sic] berenguieri — Caziot (1910)
Unio turtoni — Germain (1931)
— Haas (1969)
Unio mancus turtonii — Prie (2012)

Unio bourgeticus 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.
Type(s): 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 condatinus 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.
Type(s): 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 dolfusianus 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.
Type(s): IDIOTYPE MNHN_22197, l’Oise à Creil.

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

Unio fabaeformis 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’].
Type(s): 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 fascellinus 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.
Type(s): 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 foroguliensis Locard, 1882
‘Bérenguier’ of Authors.
Locard, 1882. Prodr. Malac. Franç. 1: 293.
Haas, 1969. Das Tierreich 88: 37.
Prie, 2012. MalaCo 8: 431.
Type(s): AUTOMATIC MNHN_22223, Fréjus (Var).

Unio forojuliensis Locard, 1882
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.
Type(s): 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 gallicus 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.
Type(s): 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 gobionum 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.
Type(s): 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 holandrei 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’].
Type(s): 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 joannisi Locard, 1882
‘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.
Type(s): 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 jourdheuili 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.
Type(s): 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 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 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.
Type(s): 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. Boll. Soc. Malac. Ital. 8: 131, pl. 0, figs. 3, 5, 7.

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

Unio mucidulus 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.
Type(s): 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 orthellus 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.
Type(s): 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 orthus 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.
Type(s): 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 pinciacus 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.
Type(s): 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 pornae Locard, 1882
‘Bourguignat’ Locard, 1882. Prodr. Malac. Franç. 1: 295, 363 [as ‘pornæ’].
Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 52 [as ‘pornæ’].
Type(s): 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 riciacensis 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.
Type(s): 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 saintsimonianus Locard, 1882
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’].
Type(s): 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 torsatellus 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 moltenii var. umbrica Adami, 1882
Adami, 1882. Boll. Soc. Malac. Ital. 8: 132, pl. 0, figs. 4, 6, 8.

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

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

Unio elongatulus gargottae — Haas (1969)

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

— Simpson (1914)
Unio elongatulus gargottae — Haas (1940), Haas (1969)

Unio bivonianus Bourguignat, 1883
Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 43.

— Simpson (1914)
Unio elongatulus gargottae — Haas (1940), Haas (1969)

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

— Simpson (1914)
Unio elongatulus lawleyianus — Haas (1969)

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

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

Unio campanus Bourguignat, 1883
H. Blanc in Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 46.

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

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

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

Unio elongatulus lawleyanus [sic] — Haas (1940)
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 meridionalis Drouët, 1883
Drouët, 1883. Unionidae de l’Italie: 51.

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

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

Unio elongatulus gargottae — Haas (1940), 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 pisanus Bourguignat, 1883
Uzielli in Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 29.

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

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

Unio lawleyanus Kobelt, 1884
‘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 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 mongazonae Servain, 1887
Servain, 1887. Bull. Soc. Malac. France 4: 253 [as ‘mongazonæ’].

Unio mongazonæ — Rochebrune (1903)
— Simpson (1914)
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 hammoniensis Servain, 1888
Servain, 1888. Bull. Soc. Malac. France 5: 319.

Unio lacustris Drouët, 1888
Drouët, 1888. J. de Conch. 36: 106.
Drouët, 1889. Mém. Acad. Sci. Dijon 1: 67, pl. 2, fig. 2.

Unio plebeius Drouët, 1888
Drouët, 1888. J. de Conch. 36: 105.
Type(s): SYNTYPE MNHN_MP_0082, [no locality available - Europe].

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

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

Unio mancus — Germain (1931)
Unio mancus mancus — 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’].
Type(s): 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 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.
Type(s): LECTOTYPE MNHN_22088 (by Graf, 2011: 456), La Grande-Garonne, à Fréjus (Var).

Unio (Berenguieriane) [sic] albanorum — Caziot (1910)
Unio requieni — Germain (1931)
— Haas (1969)
Unio mancus requienii — Prie (2012)
Unio pictorum — He & Zhuang (2013)

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.
Type(s): 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 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.
Type(s): 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 aramonensis Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 156 [50], 231 [125].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 191.
Type(s): 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 ararisianus Locard, 1889
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 155 [49], 229 [123].
‘Coutagne’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 190.
Type(s): SYNTYPE MNHN_22109, La Saône à Lyon.

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

Unio arcuatulus 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 atharsus Locard, 1889
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 169 [63], 251 [145].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 204.
Type(s): 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 campylus 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.
Type(s): 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 dollfusianus Locard, 1889
‘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 exauratus Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 145 [39], 210 [104].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 175.
Type(s): 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 frayssianus Locard, 1889
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 155 [49], 227 [121].
‘Coutagne’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 189.
Type(s): 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 hollandrei Locard, 1889
‘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 hydrelus Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], 235 [129].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 192, fig. 206.
Type(s): 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 lagnysicus Locard, 1889
‘Bourguignat’ of Authors.
Locard, 1889. Contr. Faune Malacol. Franc. 13: 127 [21].
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 84.
Locard, 1893. Coqu. Eau Douce Saumâtre France: 154.
Dumas, 1895. Rev. Sci. Bourbonnais, Suppl.: 47.
Rochebrune, 1903. Bull. Mus. Hist. Nat. 9: 389.
Kobelt & Haas, 1910. Icon. Land- und Süssw.-Moll. 17: 37.

Unio meyrannicus Locard, 1889
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 155 [49], 228 [122].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 190.
Type(s): 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 mucidulinus Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 168 [62], 249 [143].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 206.
Type(s): 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 oberthurianus Locard, 1889
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 168 [62], 248 [142].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 206.
Type(s): 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 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’].
Type(s): 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 royanus 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 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’].
Type(s): 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 salmurensis Locard, 1889
Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], 234 [128].
‘Servain’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 192.
Type(s): SYNTYPE MNHN_22512, La Loire, à Orléans (Loiret).

Unio (Requieniana) salmurensis — Germain (1904)
Unio requieni — Germain (1931)
— Haas (1969)
Unio mancus requienii — Prie (2012)

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

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

Unio triffoiricus 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.
Type(s): 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 vardonicus Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], 232 [126].
Locard, 1893. Coqu. Eau Douce Saumâtre France: 192.
Type(s): 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 mucidulinus var. curta Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 250 [144].

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 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 jourdeuilhi Westerlund, 1890
‘Ray in Locard’ of Authors.
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 138.
Baichère, 1890. Bull. Soc. Malac. France 7: 124.

Unio limnaeus Westerlund, 1890
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 136 [as ‘limnæus’].

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

Unio turtoni — Germain (1931)
— Haas (1969)
Unio mancus turtonii — Prie (2012)

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

Unio turtoni — Germain (1931)
— Haas (1969)
Unio mancus turtonii — Prie (2012)

Unio biformis Monterosato, 1896
Monterosato, 1896. Naturalista Siciliano 15: 13, text fig.

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

Unio bipartitus Monterosato, 1896
Monterosato, 1896. Naturalista Siciliano 15: 18, text fig.

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

Unio bitortus Monterosato, 1896
Monterosato, 1896. Naturalista Siciliano 15: 12, text fig.

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

Unio bivonianus var. cuspidata Monterosato, 1896
Monterosato, 1896. Naturalista Siciliano 15: 16, text fig.

Unio aradae var. cuspidata — Kobelt (1912)
Unio elongatulus gargottae — Haas (1940), Haas (1969)

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
Drouët, 1898. Mém. Acad. Sci. Dijon ??: 89.

Unio tumidus var. maximus — Germain (1931)

Unio meretrecis Germain, 1904
‘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 saintsimoni Germain, 1904
‘Fagot’ Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 270 [32] [as ‘saint-simoni’].

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

Unio subniger Germain, 1904
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 269 [31], footnote.

— Germain (1904)

Unio amblyus var. nigerrimus Germain, 1904
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 266 [28].

Unio (Moreletiana) amblyus nigerrimus — Germain (1904)

Unio gestroianus var. rubiginosus Germain, 1904
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 271 [33].

Unio (Porniana) gestroianus rubiginosus — Germain (1904)

Unio pornae var. viridis Germain, 1904
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 272 [34].

Unio (Porniana) pornae viridis — Germain (1904)

Unio triffoiricus var. mayennensis Germain, 1904
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
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 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 fascinellus Germain, 1931
‘Servain’ of Authors.
Germain, 1931. Faune de France 22: 736.
Prie, 2012. MalaCo 8: 431.

Unio lagnysiacus Germain, 1931
‘Bourguignat in Locard’ of Authors.
Germain, 1931. Faune de France 22: 724.
Prie, 2012. MalaCo 8: 430.

Unio lusitanicus Germain, 1931
‘Drouët’ of Authors.
Germain, 1931. Faune de France 22: 736.
Prie, 2012. MalaCo 8: 434.

Unio consentaneus var. moquini Germain, 1931
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 baudinii Haas, 1969
‘Rossmässler’ of Authors.
Haas, 1969. Das Tierreich 88: 35.
Fauna Europaea, 2012. Fauna Europa: [web].
Prie, 2012. MalaCo 8: 430.

Unio planci of Authors, unknown year
Drouet, 1883 of Authors.

Unio elongatulus lawleyanus [sic] — Haas (1940)

Unio blanci forma armusianus of Authors, unknown year
Uzielli of Authors.

Unio pictorum Draparnaud, 1806
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
‘Linn.’ Draparnaud, 1806. Hist. Moll. France: 131, pl. 11, figs. 1-2. [in part]

Unio requieni — Germain (1931)

Unio arcuata Jacquemin, 1835
Jacquemin, 1835. Guide Ror. Arles: 123.

Unio consentaneus var. jacquemini — Germain (1931)

Unio requeni Jay, 1835
Jay, 1835. Cat. Rec. Shells: 16 [as ‘réquéni’].

Unio turtoni Philippi, 1836
Philippi, 1836. Enum. Moll. Siciliae 1: 67.
Philippi, 1844. Enum. Moll. Siciliae 2: 49.

Unio requieni — Germain (1931)

Unio subdentatus Rossmässler, 1837
‘Ziegl.’ Rossmässler, 1837. Icon. Land- und Süssw.-Moll. 1 (5-6): 22.

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

Unio turtoni Rossmässler, 1844
Rossmässler, 1844. Icon. Land- und Süssw.-Moll. 2 (6): 25, pl. 35, fig. 492.

Unio longirostris Stabile, 1845
Stabile, 1845. Faun. Lug.: 60, fig. 72.

Unio requieni Stabile, 1845
Stabile, 1845. Faun. Lug.: 62, fig. 76.

Unio requieni — Germain (1931)

Unio tumidus Stabile, 1845
Stabile, 1845. Faun. Lug.: 61, fig. 74.

Unio turtoni Dupuy, 1850
Dupuy, 1850. Hist. Natur. Moll. France (4): pl. 27, fig. 17.

Unio turtoni — Germain (1931)

Unio lobatata Lea, 1852
‘De Cr. and J.’ Lea, 1852. Synopsis Fam. Naiades: 37.
‘De Cr. and J.’ Lea, 1870. Synopsis Fam. Naiades: 59.

Unio turtoni Drouët, 1852
Drouët, 1852. Etudes Nayades de la France: pl. 6, fig. 1.

Unio consentaneus var. ardusianus — Germain (1931)

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

Unio requieni var. rousi — Germain (1931)

Unio siculus Hanley, 1856
‘Swainson’ Hanley, 1856. Cat. Rec. Bivalve Shells, Suppl.: 383, pl. 20, fig. 19.

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

Unio requieni var. minima l’Hôpital, 1859
‘Drouët’ l’Hôpital, 1859. Cat. moll. Caen: 61.

Unio villae — Germain (1931)

Unio siculus Sowerby, 1868
‘Swainson’ Sowerby, 1868. Conch. Icon. 16: pl. 71, sp. 364.

Unio (sec. Lymnium) turtoni — Simpson (1900), Simpson (1914)

Unio pictorum Benoit, 1875
‘Lamarck’ Benoit, 1875. Boll. Soc. Malac. Ital. 1: 163.

Unio aradasii Kobelt, 1876
Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: pl. 117, fig. 1147. [in part]

Unio elongatulus gargottae — Haas (1940)

Unio aradasii Kobelt, 1876
Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: pl. 117, fig. 1146. [in part]

Unio blauneri Kobelt, 1876
‘Shuttleworth’ Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: 63, pl. 118, 1149.

Unio requieni Kobelt, 1876
Kobelt, 1876. Icon. Land- und Süssw.-Moll. 4: 63, pl. 117, fig. 1148.

Unio bayonensis Drouët, 1879
‘Folin & Bérillon’ Drouët, 1879. J. de Conch. 27: 332.
‘De Folin & Bérillon’ Fagot, 1892. Bull. Soc. Ramond 27: 38.

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

Unio laderelianus Bourguignat, 1883
‘Pecchioli’ Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 36.

Unio meretrix Bourguignat, 1883
Bourguignat, 1883. Aperçu Unionid. Pénins. Ital.: 53.

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

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

Unio hammonis Locard, 1889
‘Servain’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 168 [62].

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

Unio elongatulus sandrii — Haas (1940)

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

Unio requieni var. elongata Locard, 1889
Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], footnote. [nomen nudum]

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

Unio anconae Paetel, 1890
‘Bourguignat’ Paetel, 1890. Cat. Conch.-Samml. 3: 144.

Unio aradasis Westerlund, 1890
‘Kob.’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 157.

Unio ricianensis Westerlund, 1890
‘Bgt.’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 165.

Unio alleroni Locard, 1893
‘Companyo et Massot’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 182.

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

Unio bandanii Simpson, 1900
‘Küster’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 686.

Unio pleibeius Germain, 1904
‘Drouet’ Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 273 [35].

Unio voltzii var. ursanensis Kobelt & Haas, 1910
Kobelt & Haas, 1910. Icon. Land- und Süssw.-Moll. 17: 35.

Unio orbus Germain, 1931
‘Locard’ Germain, 1931. Faune de France 22: 727.

Unio hydrellus Haas, 1940
‘Locard’ Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 122.

Unio pincianus Haas, 1940
Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 121.
Haas, 1969. Das Tierreich 88: 23.

Unio ricconianus Haas, 1940
‘Monterosato’ Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 127.

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

Unio zoasthenicus Haas, 1940
‘Locard’ Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 131.

Unio bramichus Prie, 2012
‘Baichère’ Prie, 2012. MalaCo 8: 431.

Unio lingulformis Prie, 2012
‘Wilcock, Locard’ Prie, 2012. MalaCo 8: 431.

Unio passaranti Prie, 2012
‘Bourguignat in Locard’ Prie, 2012. MalaCo 8: 433.