Bivalvia | Unionida | Etherioidea | Iridinidae | Iridininae | Pleiodon
Swainson, 1823. Philos. Mag. & J. 61: 113.
Swainson, 1840. Treat. Malacol.: 380.
(renamed Arca rostrum Wood, 1828)
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Pleiodon ovatum — Kobelt (1910)
Iridina (Pleiodon) ovata — Pilsbry & Bequaert (1927), Haas (1969), Haas (1969)
Iridina (sec. Pliodon) ovata — Thiele (1934)
Mutela ovata — Mandahl-Barth (1988), IUCN (2010)
Pleiodon ovatus — Daget (1998), Bogan (2010), Graf & Cummings (2011), Graf & Cummings (2021)
Iridina ovatus — Graf (2000)
Pleiodon ovata — Graf & Cummings (2006), Graf & Cummings (2007), Zieritz et al. (2013)
Wood, 1828. Suppl. Index Testac.: 6, pl. 2, sp. 9.
(new name for Iridina ovata Swainson, 1823)
Pleiodon (s.s.) ovatus — Pain & Woodward (1964)
‘Conrad’ of Authors.
Conrad, 1834. Jour. Acad. Nat. Sci. 7(1): 180.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 225.
Mørch, 1853. Cat. Conch. Yoldi 2: 49.
Pilsbry & Bequaert, 1927. Bull. AMNH 53: 443.
Haas, 1969. Das Tierreich 88: 601.
Mandahl-Barth, 1988. Studies on African Freshwater Bivalves: 57.
Daget, 1998. Cat. Bivalves Africains: 151.
(incorrect original spelling of Pleiodon macmurtriei Conrad, 1834)

Conrad, 1834. Jour. Acad. Nat. Sci. 7(1): 180, pl. 13 [also as ‘macmurtrei’].
(correct name for Pleiodon macmurtrei ‘Conrad’ of Authors)
Type(s): HOLOTYPE ANSP_41888, [no locality available - West Africa].
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Iridina (Pleiodon) ovata — Pilsbry & Bequaert (1927), Haas (1969)
Mutela ovata — Mandahl-Barth (1988)
Pleiodon ovatus — Daget (1998), Graf & Cummings (2021)
Pleiodon ovata — Graf & Cummings (2007)
‘Chenu’ Conrad, 1854. Jour. Acad. Nat. Sci. 2(4): 299.
Chenu, 1858. Illustr. Conchyl.: pl. 5, figs. 2-2d.
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Iridina (Pleiodon) ovata — Haas (1969)
Pleiodon ovatus — Daget (1998)

Chenu, 1858. Illustr. Conchyl.: pl. 1, figs. 2-2d.
Type(s): SYNTYPES MNHN_MP_0311, Senegal.
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Iridina (Pleiodon) ovata — Pilsbry & Bequaert (1927), Haas (1969)
Pleiodon ovatus — Daget (1998)

Bourguignat, 1879. Descr. Div. Espèces Terr. Fluv. Diff. Genres Moll. Égypte, Abyssinie, Zanzibar, Sénégal, Centre Afrique: 47.
Type(s): SYNTYPE MNHN_MP_0207, Niger.
Pleiodon (s.s.) diolibanus — Simpson (1900), Simpson (1914)
Pleiodon djolibanum [sic] — Kobelt (1910)
Iridina (Pleiodon) diolibana — Pilsbry & Bequaert (1927)
Iridina (Pleiodon) ovata — Haas (1969)
Pleiodon ovatus — Daget (1998)

Bourguignat, 1879. Descr. Div. Espèces Terr. Fluv. Diff. Genres Moll. Égypte, Abyssinie, Zanzibar, Sénégal, Centre Afrique: 47.
Type(s): HOLOTYPE MNHN_MP_0046, Bakel, Senegal.
Pleiodon (s.s.) elongatus — Simpson (1900), Simpson (1914)
Pleiodon elongatum — Kobelt (1910)
Iridina (Pleiodon) elongata — Pilsbry & Bequaert (1927)
Iridina (Pleiodon) ovata — Haas (1969)
Pleiodon ovatus — Daget (1998), Graf & Cummings (2011)
Bourguignat, 1879. Descr. Div. Espèces Terr. Fluv. Diff. Genres Moll. Égypte, Abyssinie, Zanzibar, Sénégal, Centre Afrique: 48.
Pleiodon (s.s.) letourneuxianus — Simpson (1900), Simpson (1914)
Pleiodon letourneuxianum — Kobelt (1910)
Iridina (Pleiodon) letourneuxiana — Pilsbry & Bequaert (1927)
Iridina (Pleiodon) ovata — Haas (1969)
Pleiodon ovatus — Daget (1998)

Bourguignat, 1879. Descr. Div. Espèces Terr. Fluv. Diff. Genres Moll. Égypte, Abyssinie, Zanzibar, Sénégal, Centre Afrique: 46.
Type(s): HOLOTYPE MNHN_MP_0282, Bafing, affluent du Senegal.
Pleiodon (s.s.) pachyodon — Simpson (1900)
Pleiodon pachyodon — Kobelt (1910)
Pleiodon (s.s.) ovatus var. pachyodon — Simpson (1914)
Iridina (Pleiodon) pachyodon — Pilsbry & Bequaert (1927)
Pleiodon (s.s.) ovatus — Pain & Woodward (1964)
Iridina (Pleiodon) ovata — Haas (1969)
Pleiodon ovatus — Daget (1998)
Germain, 1909. Arch. Zool. exp. gén. 1: 44, footnote.
(intro'd as intra-sp. of Iridina ovata Swainson, 1823)
Pleiodon ovatus — Daget (1998)
Paulus & Paulus, 1948. Bull. Mus. Hist. nat. Marseille 8(2-3): 87.
(intro'd as intra-sp. of Iridina ovata Swainson, 1823)
Pleiodon ovatus — Daget (1998)
Pain & Woodward, 1964. Annals Mus. R. Afr. Cent. 8: 9, pl. 2-3.
Pleiodon (s.s.) waterstoni — Pain & Woodward (1964)
Mutela ovata — Mandahl-Barth (1988)
Pleiodon ovatus — Daget (1998)
‘Lamarck’ Children, 1823. Quart. J. Sci., Lit. & Arts 15: 27, pl. 1, fig. 72.
(misidentified reference to Iridina exotica Lamarck, 1819)
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Mutela dubia dubia — Daget (1998)
Jay, 1850. Cat. Rec. Shells: 70. [nomen nudum]
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Pleiodon ovatus — Daget (1998)

‘Sow.’ Lea, 1852. Synopsis Fam. Naiades: 54. [nomen nudum]
‘Sow.’ Lea, 1870. Synopsis Fam. Naiades: 88. [nomen nudum]
Type(s): NOMEN NUDUM USNM_86774, Senegal.
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Iridina (Pleiodon) ovata — Pilsbry & Bequaert (1927), Haas (1969)
Pleiodon ovatus — Daget (1998)
‘Conrad’ Sowerby, 1866. Conch. Icon. 16: pl. 1, sp. 1.
(error for Pleiodon macmurtriei Conrad, 1834)
‘Chenu’ Lea, 1870. Synopsis Fam. Naiades: 88.
(error for Iridina splendida Chenu, 1858)
‘Bourguignat’ Kobelt, 1910. Abh. Senckenb. Naturf. Ges. 32: 85.
(error for Pliodon diolibanus Bourguignat, 1879)
Pleiodon (s.s.) ovatus — Simpson (1900), Simpson (1914), Pain & Woodward (1964)
Pleiodon (s.s.) diolibanus — Simpson (1900), Simpson (1914)
Pleiodon (s.s.) elongatus — Simpson (1900), Simpson (1914)
Pleiodon (s.s.) letourneuxianus — Simpson (1900), Simpson (1914)
Pleiodon (s.s.) pachyodon — Simpson (1900)
Pleiodon ovatum — Kobelt (1910)
Pleiodon djolibanum [sic] — Kobelt (1910)
Pleiodon elongatum — Kobelt (1910)
Pleiodon letourneuxianum — Kobelt (1910)
Pleiodon pachyodon — Kobelt (1910)
Pleiodon (s.s.) ovatus var. pachyodon — Simpson (1914)
Iridina (Pleiodon) ovata — Pilsbry & Bequaert (1927), Haas (1969), Haas (1969)
Iridina (Pleiodon) diolibana — Pilsbry & Bequaert (1927)
Iridina (Pleiodon) elongata — Pilsbry & Bequaert (1927)
Iridina (Pleiodon) letourneuxiana — Pilsbry & Bequaert (1927)
Iridina (Pleiodon) pachyodon — Pilsbry & Bequaert (1927)
Iridina (sec. Pliodon) ovata — Thiele (1934)
Pleiodon (s.s.) waterstoni — Pain & Woodward (1964)
Mutela ovata — Mandahl-Barth (1988), IUCN (2010)
Mutela dubia dubia — Daget (1998)
Pleiodon ovatus — Daget (1998), Bogan (2010), Graf & Cummings (2011), Graf & Cummings (2021)
Iridina ovatus — Graf (2000)
Pleiodon ovata — Graf & Cummings (2006), Graf & Cummings (2007), Zieritz et al. (2013)