Unio truncatus Swainson, 1823
Swainson, 1823. Zool. Illustr. 3(1): pl. 10.
Swainson, 1840. Treat. Malacol.: 269-270.
(homonym of Unio truncatus Spengler, 1793)

Unio (sec. Lymnium) tigridis — Simpson (1900), Simpson (1914)
Unio tigridis — Preston (1912)
Unio tigridis tigridis — Haas (1940), Haas (1969)

Unio tigridis Bourguignat, 1852
Bourguignat, 1852. Test. Nov. Saulcy: 30.
Bourguignat, 1853. Catalogue Raissoné des Mollusques Terrestres et Fluviatiles Recueillis par M.F. Saulcy 1853: 77, pl. 4, figs. 7-9.
(renamed Margaron (Unio) tigris Lea, 1870)
Type(s): SYNTYPE MNHN_MP_0066, Bagdad.

Unio (sec. Lymnium) tigridis — Simpson (1900), Simpson (1914)
Unio tigridis — Preston (1912), Haas (1952), Starmühlner & Edlauer (1957), Biggs (1971), Schütt (1983), ... Lopes-Lima et al. (2021), Bogan et al. (2021), Lyubas et al. (2022), Bashê (2022), Jihad (2023)
Unio (Nemrodia) tigris [sic] — Pallary (1939)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio (s.s.) tigridis — Falkner (1994)

Unio natolicus Küster, 1856
Küster, 1856. Conchyl. Cab. 9(2): 144, pl. 42, fig. 4.

Unio (sec. Lymnium) batavus — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)

Unio mussolianus Küster, 1861
‘Parreiss in sched.’ Küster, 1861. Conchyl. Cab. 9(2): 244, pl. 82, fig. 1.
(renamed Unio mossulianus Kobelt, 1912)

Unio (sec. Lymnium) mussolianus — Simpson (1900), Simpson (1914)
Unio mussolianus — Preston (1912)
Unio (Limnium) [sic] mossulianus [sic] — Pallary (1939)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio bourguignatianus Lea, 1863
Lea, 1863. Proc. Acad. Nat. Sci. 15: 189.
Lea, 1866. Jour. Acad. Nat. Sci. 6 [O. 11]: 54 [58], pl. 18, fig. 51.
Type(s): HOLOTYPE USNM_84713, R. Tigris at Mosul, Persia.

Unio (sec. Lymnium) mussolianus — Simpson (1900), Simpson (1914)
Unio mussolianus — Preston (1912)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021), Jihad (2023)

Unio dignatus Lea, 1863
Lea, 1863. Proc. Acad. Nat. Sci. 15: 189.
Lea, 1866. Jour. Acad. Nat. Sci. 6 [O. 11]: 51 [55], pl. 17, fig. 48.
Type(s): HOLOTYPE USNM_84714, R. Tigris at Bagdad, Persia.

Unio (sec. Lymnium) tigridis — Simpson (1900), Simpson (1914)
Unio tigridis — Preston (1912), Schütt (1983), Lopes-Lima et al. (2021), Jihad (2023)
Unio (Nemrodia) dignatus — Pallary (1939)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio (s.s.) tigridis — Falkner (1994)

Unio mosulensis Lea, 1863
Lea, 1863. Proc. Acad. Nat. Sci. 15: 190.
Lea, 1866. Jour. Acad. Nat. Sci. 6 [O. 11]: 52 [57], pl. 17, fig. 49.
Type(s): HOLOTYPE USNM_85230, River Tigris, Mosul, Persia.

Unio (sec. Lymnium) mussolianus — Simpson (1900), Simpson (1914)
Unio mussolianus — Preston (1912)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021), Bogan et al. (2021), Jihad (2023)

Unio rasus Lea, 1863
Lea, 1863. Proc. Acad. Nat. Sci. 15: 189.
Lea, 1866. Jour. Acad. Nat. Sci. 6 [O. 11]: 50 [54], pl. 17, fig. 47.
Type(s): HOLOTYPE USNM_85231, Assyria.

Unio (sec. Lymnium) mussolianus — Simpson (1900), Simpson (1914)
Unio mussolianus — Preston (1912)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Margaron (Unio) tigris Lea, 1870
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 21. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 18. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 25. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 39.
(new name for Unio tigridis Bourguignat, 1852)
Type(s): MANUSCRIPT NAME USNM_84706, River at Bagdad, Persia.

Unio (sec. Lymnium) tigridis — Simpson (1900)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Lopes-Lima et al. (2021)

Unio mossulensis Kobelt, 1886
‘Lea’ of Authors.
Kobelt, 1886. Icon. Land- und Süssw.-Moll. 2: 22.
Paetel, 1890. Cat. Conch.-Samml. 3: 173.
‘Lea’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 171.
(error for Unio mosulensis Lea, 1863)

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

Unio lorteti Kobelt, 1895
Kobelt, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1: 14, pl. 5, fig. 3.
(misidentified reference to Unio lorteti Locard, 1883)

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

Unio mossulianus Kobelt, 1912
Kobelt, 1912. Icon. Land- und Süssw.-Moll. 19: 46, pl. 503, fig. 2658.
(new name for Unio mussolianus Küster, 1861)

Unio (sec. Lymnium) mussolianus — Simpson (1914)
Unio (Limnium) [sic] mossulianus [sic] — Pallary (1939)

Unio tigridis var. haruni Kobelt, 1912
Kobelt, 1912. Icon. Land- und Süssw.-Moll. 19: 2, pl. 32, fig. 226.
(intro'd as intra-sp. of Unio tigridis Bourguignat, 1852)

Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio calliopsis Kobelt, 1913
Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 15, pl. 519, fig. 2703.

— Simpson (1914)
Unio (Nemrodia) calliopsis — Pallary (1939)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021), Bogan et al. (2021), Jihad (2023)

Unio hyperamblius Kobelt, 1913
Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 15, pl. 519, fig. 2701.

— Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio siouffi Kobelt, 1913
Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 47, pl. 534, fig. 2747.

Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio dignatus assuricus Kobelt, 1913
Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 13, pl. 518, fig. 2699.
(intro'd as intra-sp. of Unio dignatus Lea, 1863)

Unio (sec. Lymnium) tigridis — Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio dignatus ninusi Kobelt, 1913
Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 13, pl. 518, fig. 2700.
(intro'd as intra-sp. of Unio dignatus Lea, 1863)

Unio (sec. Lymnium) tigridis — Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio dignatus semiramidis Kobelt, 1913
Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 11, pl. 517, figs. 2698.
(intro'd as intra-sp. of Unio dignatus Lea, 1863)

Unio (sec. Lymnium) tigridis — Simpson (1914)
Unio (Nemrodia) semiramidis — Pallary (1939)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021), Bogan et al. (2021)

Unio (Nemrodia) tammouziana Pallary, 1939
Pallary, 1933. Bull. Mus. Hist. Nat. 5: 149. [nomen nudum]
Pallary, 1939. Mém. Inst. Égypte 39: 118, pl. 7, figs. 2-4.

Unio (Nemrodia) tammouziana — Pallary (1939)
Unio tigridis tigridis — Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio (Nemrodia) tammouziana var. major Pallary, 1939
Pallary, 1939. Mém. Inst. Égypte 39: 118.
(homonym of Unio (Anodontes) sirionos var. major d’Orbigny, 1835; intro'd as intra-sp. of Unio (Nemrodia) tammouziana Pallary, 1939)

Unio (Nemrodia) tammouziana var. major — Pallary (1939)
Unio tigridis tigridis — Haas (1969)
Unio tigridis — Lopes-Lima et al. (2021)

Unio (Nemrodia) tammouziana var. minor Pallary, 1939
Pallary, 1939. Mém. Inst. Égypte 39: 119.
(homonym of Unio margaritifer var. minor Rossmässler, 1835; intro'd as intra-sp. of Unio (Nemrodia) tammouziana Pallary, 1939)

Unio (Nemrodia) tammouziana var. minor — Pallary (1939)
Unio tigridis tigridis — Haas (1969)
Unio tigridis — Lopes-Lima et al. (2021)

Unio (Nemrodia) tigris [sic] var. cuneiformis Pallary, 1939
Pallary, 1939. Mém. Inst. Égypte 39: 116.
(intro'd as intra-sp. of Unio tigridis Bourguignat, 1852; homonym of Unio vinceloti var. cuneiformis Germain, 1904)

Unio (Nemrodia) tigris [sic] var. cuneiformis — Pallary (1939)
Unio tigridis tigridis — Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio (Nemrodia) tigris [sic] var. khabourensis Pallary, 1939
Pallary, 1939. Mém. Inst. Égypte 39: 117.
(intro'd as intra-sp. of Unio tigridis Bourguignat, 1852)

Unio (Nemrodia) tigris [sic] var. khabourensis — Pallary (1939)
Unio tigridis tigridis — Haas (1969)
Unio tigridis — Schütt (1983), Lopes-Lima et al. (2021)

Unio requieni of Authors, unknown year
‘Mosson Coq. Roth. p. 177’ of Authors.
(misidentified reference to Unio requienii Michaud, 1831)

Unio zabulonicus Kobelt, 1893
Kobelt, 1893. Icon. Land- und Süssw.-Moll. 6: 96, pl. 179, fig. 1129.
(misidentified reference to Unio zabulonicus Locard, 1883)

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

Unio lortiti Simpson, 1900
‘Kobelt’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 690.
(error for Unio lorteti Kobelt, 1895)

Unio rarus Schütt, 1983
‘Lea’ Schütt, 1983. Arch. Moll. 113(1/6): 55.
(error for Unio rasus Lea, 1863)