Unio ovatus Say, 1817
Bruguière, 1797. Encycl. Méth. 2: pl. 248, fig. 5 [as Unio sp.].
Say, 1817. Nich. Encyc. 2: [12,] pl. 2, fig. 7.
Say, 1819. Nich. Encyc. 4: [17,] pl. 2, fig. 7.
Say, 1858. [in] Binney, Compl. Writings T. Say: 50-51.
Type(s): NEOTYPE SMF_4338, N. Amerika.

Lampsilis (s.s.) ovatus — Simpson (1900), Frierson (1927)
Lampsilis ventricosa ovata — Ortmann (1909), Ortmann (1909)
Lampsilis ovata — Ortmann (1909), Ortmann (1912), Ortmann (1924), Ortmann (1925), Thiele (1934), ... FMCS (2021), Stodola et al. (2021), Konopleva et al. (2023), Hopper et al. (2023), Zieritz et al. (2024)
Lampsilis ventricosa var. ovata — Ortmann (1910)
Lampsilis (s.s.) ovata — Simpson (1914), Haas (1930), Haas (1969), Haas (1969), R.I. Johnson (1970)
Lampsilis ovatus — Ortmann (1918), Modell (1942), Heard & Guckert (1970), Clarke (1973)

Mya occidens of Authors, unknown year
Desh. of Authors.
(misidentified reference to Unio occidens Lea, 1829)

Mya subovatus of Authors, unknown year
Desh. of Authors.
(misidentified reference to Unio subovatus Lea, 1831)

Mya ventricosus of Authors, unknown year
Desh. of Authors.
(misidentified reference to Unio ventricosus Barnes, 1823)

Mya ventricosus of Authors, unknown year
Desh. of Authors.
(misidentified reference to Unio ventricosus Barnes, 1823)

Unio ovata Lamarck, 1819
‘Say’ Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 75, sp. 23, var. [a]. [in part]
(reference to Unio ovatus Say, 1817)

Lampsilis (s.s.) ovatus — Simpson (1900)
Lampsilis (s.s.) ovata — Simpson (1914)