Unio delicatus Lea, 1863
Lea, 1863. Proc. Acad. Nat. Sci. 15: 189.
Lea, 1866. Jour. Acad. Nat. Sci. 6 [O. 11]: 58 [62], pl. 19, fig. 56.
Type(s): HOLOTYPE USNM_84906, R. Orontes, Syria.

Unio (sec. Lymnium) delicatus — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio terminalis — IUCN (2014)
Unio terminalis delicates [sic] — Soliman et al. (2016)
Unio delicatus — Lopes-Lima et al. (2021), Lyubas et al. (2022)

Unio anemprosthus Locard, 1883
‘Bourguignat’ Locard, 1883. Arch. Mus. Hist. Nat. Lyon 3: 246, pl. 21, figs. 21-23.

Unio (sec. Lymnium) pietri — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio delicatus — Lopes-Lima et al. (2021)

Unio antiochianus Locard, 1883
Locard, 1883. Arch. Mus. Hist. Nat. Lyon 3: 249, pl. 22, figs. 14-16.

Unio (sec. Lymnium) zabulonicus — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio delicatus — Lopes-Lima et al. (2021)

Unio axiacus Locard, 1883
‘Letourneux’ Locard, 1883. Arch. Mus. Hist. Nat. Lyon 3: 242, pl. 20, figs. 20-23.

Unio (sec. Lymnium) pietri — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio delicatus — Lopes-Lima et al. (2021)

Unio chantrei Locard, 1883
Locard, 1883. Arch. Mus. Hist. Nat. Lyon 3: 247, pl. 22, figs. 1-7.

Unio (sec. Lymnium) pietri — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio delicatus — Lopes-Lima et al. (2021)

Unio jauberti Locard, 1883
‘Bourguignat’ Locard, 1883. Arch. Mus. Hist. Nat. Lyon 3: 248, pl. 22, figs. 8-10.

Unio (sec. Lymnium) ellipsoideus — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio delicatus — Lopes-Lima et al. (2021)

Unio subtigridis Locard, 1883
‘Letourneux’ Locard, 1883. Arch. Mus. Hist. Nat. Lyon 3: 245, pl. 21, figs. 18-20.

Unio (sec. Lymnium) pietri — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio delicatus — Lopes-Lima et al. (2021)

Unio alexandri Kobelt & Rolle, 1895
Kobelt & Rolle, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1 (1-4): 14, pl. 2, fig. 2.

Unio (sec. Lymnium) turtoni — Simpson (1900), Simpson (1914)
Unio elongatulus eucirrus — Haas (1940), Haas (1969), Schütt (1983), Schütt (1992)
Unio delicatus — Lopes-Lima et al. (2021)

Unio cilicicus Kobelt & Rolle, 1895
Kobelt & Rolle, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1 (1-4): 11, pl. 1, fig. 1.

Unio elongatulus eucirrus — Haas (1940), Haas (1969), Schütt (1983), Schütt (1992)
Unio delicatus — Lopes-Lima et al. (2021)

Unio kobelti Kobelt & Rolle, 1895
Kobelt & Rolle, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1 (1-4): 15, pl. 6, fig. 3.

Unio (sec. Lymnium) ellipsoideus — Simpson (1900), Simpson (1914)
Unio tigridis tigridis — Haas (1940), Haas (1969)
Unio terminalis delicatus — Schütt (1983)
Unio delicatus — Lopes-Lima et al. (2021)

Unio pietri Kobelt, 1895
Kobelt, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1: 16, pl. 6, figs. 1-2.
(misidentified reference to Unio pietri Locard, 1883)

Unio (sec. Lymnium) ellipsoideus — Simpson (1900), Simpson (1914)
Unio terminalis delicatus — Schütt (1983)

Unio cilicicus var. adanensis Kobelt & Rolle, 1895
Kobelt & Rolle, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1 (1-4): 12, pl. 1, fig. 2.
(intro'd as intra-sp. of Unio cilicicus Kobelt & Rolle, 1895)

Unio elongatulus eucirrus — Haas (1940), Haas (1969), Schütt (1983), Schütt (1992)
Unio delicatus — Lopes-Lima et al. (2021)

Unio cilicicus var. jenemterensis Kobelt & Rolle, 1895
Kobelt & Rolle, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1 (1-4): 12, pl. 1a, fig. 1.
(intro'd as intra-sp. of Unio cilicicus Kobelt & Rolle, 1895)

Unio elongatulus eucirrus — Haas (1940), Haas (1969), Schütt (1983), Schütt (1992)
Unio delicatus — Lopes-Lima et al. (2021)

Unio cilicicus var. subsaccatus Kobelt & Rolle, 1895
Kobelt & Rolle, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1 (1-4): 13, pl. 7a, fig. 3.
(intro'd as intra-sp. of Unio cilicicus Kobelt & Rolle, 1895)

Unio elongatulus eucirrus — Haas (1940), Haas (1969), Schütt (1983), Schütt (1992)
Unio delicatus — Lopes-Lima et al. (2021)

Unio (cilicicus var. ?) berytensis Kobelt & Rolle, 1895
Kobelt & Rolle, 1895. Iconogr. Land-Süßw.-Moll., Supplement 1 (1-4): 13, pl. 5, figs. 1-2.
(intro'd as intra-sp. of Unio cilicicus Kobelt & Rolle, 1895)

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

Unio kuweikensis Kobelt, 1913
Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 31, pl. 525, fig. 2725.

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

Unio (cilicicus var.) anceyi Kobelt, 1913
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 146 [40] [as ‘Unio anceyi’]. [nomen nudum]
‘Bourguignat MS’ Kobelt, 1913. Icon. Land- und Süssw.-Moll. 19: 47, pl. 534, fig. 2748.
(intro'd as intra-sp. of Unio cilicicus Kobelt & Rolle, 1895)

Unio elongatulus eucirrus — Haas (1940), Haas (1969), Schütt (1983), Schütt (1992)
Unio delicatus — Lopes-Lima et al. (2021)

Unio schwarzii Kobelt, 1915
Kobelt, 1915. Icon. Land- und Süssw.-Moll. 20: 27, pl. 551, fig. 2802.

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

Unio tigridis Araujo et al., 2018
‘Bourguignat’ of Authors.
Araujo et al., 2018. J. Linn. Soc., Zool. 182(2): supplementary table. [in part]
(misidentified reference to Unio tigridis Bourguignat, 1852)

Unio delicatus — Lopes-Lima et al. (2021)

Unio anemprostus Westerlund, 1890
‘(Bgt.) Loc.’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 175.
(error for Unio anemprosthus Locard, 1883)

Unio (cilicicus var.) berythensis Haas, 1940
‘Kobelt & Rolle’ Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 128.
Haas, 1969. Das Tierreich 88: 42.
(error for Unio (cilicicus var. ?) berytensis Kobelt & Rolle, 1895)

Unio terminalis delicates Soliman et al., 2016
Soliman et al., 2016. Egypt. J. Zool. 66: 120.
(error for Unio delicatus Lea, 1863)