Unio dembeae Reeve, 1865
‘Rossmässler MS’ Reeve, 1865. Conch. Icon. 16: pl. 29, sp. 153 [as ‘dembeæ’].

Nodularia (sec. Cafferia) dembeae — Simpson (1900)
Nodularia (Cafferia) dembeae — Kobelt (1910)
Unio (sec. Cafferia) dembeae — Simpson (1914)
Cælatura [sic] (Iaronia) dembeae — Pallary (1924)
Unio dembeae — Pilsbry & Bequaert (1927), Haas (1936), Van Damme & Van Bocxlaer (2009), Graf & Cummings (2021)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Mandahl-Barth (1988), Daget (1998), Ibrahim et al. (1999)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)
Unio (s.s.) mancus dembeae — Falkner (1994)
Unio mancus — Graf & Cummings (2007)
— Araujo et al. (2018)

Unio aeneus Jickeli, 1874
Jickeli, 1874. Nova Acta Dtsch. Akad. Naturf. 37(1): 274, pl. 9, fig. 2.

Nodularia (sec. Cælatura [sic]) nilotica — Simpson (1900), Simpson (1914)
Nodularia (Coelatura) nilotica var. aenea — Kobelt (1910)
Unio aeneus — Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Mandahl-Barth (1988), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio jickelii Bourguignat, 1883
Bourguignat, 1883. Hist. Malac. Abyssinie: 135.
Bourguignat, 1883. Moll. Fluv. Nyanza: 17.

— Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio alfierianus Bourguignat, 1885
Bourguignat, 1885. Moll. Terr. Fluv. Choa: 43.
Type(s): SYNTYPE MNHN_MP_0344, dans le Guebe, affluente l’Oromo (Choa).

— Simpson (1900), Kobelt (1910), Simpson (1914)
Unio alfierianus — Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio hamyanus Bourguignat, 1885
Bourguignat, 1885. Moll. Terr. Fluv. Choa: 42.
Type(s): SYNTYPE MNHN_MP_0154, Lac Haoussa.

— Simpson (1900), Simpson (1914), Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)
Unio mancus — Graf & Cummings (2011)

Unio ilqi Bourguignat, 1885
‘Soleillet, in litt.’ Bourguignat, 1885. Moll. Terr. Fluv. Choa: 40.
Type(s): SYNTYPE MNHN_MP_0158, Bords du lac Haoussa, voyage au Choa.

— Simpson (1900), Simpson (1914)
Unio ilqi — Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio meneliki Bourguignat, 1885
‘Soleillet’ Bourguignat, 1885. Moll. Terr. Fluv. Choa: 41.
Type(s): SYNTYPE MNHN_MP_0126, lac Haouach, Choa.

— Simpson (1900), Simpson (1914), Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio soleilleti Bourguignat, 1885
Bourguignat, 1885. Moll. Terr. Fluv. Choa: 39.
Type(s): SYNTYPE MNHN_MP_0105, Lac Haoussa.

— Simpson (1900), Simpson (1914), Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio traversii Pollonera, 1888
Pollonera, 1888. Boll. Soc. Malac. Ital. 13: 85, pl. 3, figs. 14-15.

Nodularia (sec. Cafferia) traversii — Simpson (1900)
Nodularia (Cafferia) traversii — Kobelt (1910)
Unio (sec. Cafferia) traversii — Simpson (1914)
— Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio idgi Simpson, 1900
‘Bourguignat’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 862.
‘Bourguignat’ Simpson, 1914. Descr. Cat. Naiades: 1193.
(error for Unio ilqi Bourguignat, 1885)

Unio ilqi — Pilsbry & Bequaert (1927)
Unio elongatulus dembeae — Daget (1998)

Unio cilicicus var. jenematensis de Angelis & Millosevic, 1900
de Angelis & Millosevic, 1900. unknown publication: 142, pl. 4, figs. 5a-b.
(intro'd as intra-sp. of Unio cilicicus Kobelt & Rolle, 1895)

Unio elongatulus dembeae — Van Damme (1984), Daget (1998)

Unio (Nodularia) erlangeri Kobelt, 1910
Kobelt, 1910. Abh. Senckenb. Naturf. Ges. 32: 49, pl. 10, fig. 8.

Nodularia erlangeri — Simpson (1914)
— Pilsbry & Bequaert (1927)
Unio dembeae — Haas (1936)
Unio elongatulus dembeae — Haas (1940), Haas (1969), Van Damme (1984), Mandahl-Barth (1988), Daget (1998)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio cilicicus var. jenemertensis Van Damme, 1984
Van Damme, 1984. Freshw. Moll. N. Africa (25): 53.
(error for Unio cilicicus var. jenematensis de Angelis & Millosevic, 1900)

Unio elongatulus dembeae — Daget (1998)

Unio demboae Lea, 1870
‘Reeve’ Lea, 1870. Synopsis Fam. Naiades: 63 [as ‘demboæ’].
(error for Unio dembeae Reeve, 1865)

Unio dembea Bourguignat, 1885
‘Rossmässler, in: Reeve’ Bourguignat, 1885. Moll. Terr. Fluv. Choa: 38.
(error for Unio dembeae Reeve, 1865)

Unio dembeae — Pilsbry & Bequaert (1927)
Unio elongatulus forma dembeae — Fischer-Piette & Métivier (1974)

Unio alderiana Paetel, 1890
‘Bourguignat’ Paetel, 1890. Cat. Conch.-Samml. 3: 144.
(error for Unio alfierianus Bourguignat, 1885)

Unio elongatulus dembeae — Daget (1998)

Unio ilqui Simpson, 1900
‘Soleilet’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 862.
‘Soleillet’ Simpson, 1914. Descr. Cat. Naiades: 1193.
(error for Unio ilqi Bourguignat, 1885)

Unio ilqi — Pilsbry & Bequaert (1927)
Unio elongatulus dembeae — Daget (1998)

Unio abbadianus Kobelt, 1909
Kobelt, 1909. Abh. Senckenb. Naturf. Ges. 32: 50.
(intro'd as syn of Unio dembeae Reeve, 1865)

Unio elongatulus dembeae — Daget (1998)

Unio hamyi Kobelt, 1910
‘Bourguignat’ Kobelt, 1910. Abh. Senckenb. Naturf. Ges. 32: 50.
(error for Unio hamyanus Bourguignat, 1885)

Unio elongatulus dembeae — Daget (1998)

Unio igli Van Damme, 1984
‘Bourg.’ Van Damme, 1984. Freshw. Moll. N. Africa (25): 53.
(error for Unio ilqi Bourguignat, 1885)