Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Ortmanniana ligamentina

Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 239 [77], pl. 23, fig. 54.
Type(s): HOLOTYPE (MONOTYPY) AMNH_30561, Ohio Canal, 12 mi below Columbus, Franklin Co., Ohio.
+ — Cummings et al., 2025: 393.
= Sphenonaias callosa (Lea, 1841) — Graf & Cummings, 2021: 20.
+ Actinonaias ligamentina — Inoue et al., 2020: 476.
= Sphenonaias callosa (Lea, 1841) — Graf & Cummings, 2007: 309.
+ Nephronaias (Sphenonaias) mexicana (Philippi, 1847) — Haas, 1969: 206.
= Elliptio (Sphenonaias) callosus (Lea, 1841) — Frierson, 1927: 37, sp. 143.
= Unio (sec. Elliptio) callosus Lea, 1841 — Simpson, 1914: 587.
= Unio (sec. Elliptio) callosus Lea, 1841 — Simpson, 1900: 701.
= Unio (Simonaias) callosus Lea, 1841 — Martens, 1900: 653.
= Unio callosus Lea — B.H. Wright, 1888: [2].
= Margaron (Unio) callosus (Lea) — Lea, 1870: 42.
= Unio (Niäa) callosus Lea — Adams & Adams, 1857: 492.
= Unio callosus Lea, 1841 — Conrad, 1853: 246.
= Margaron (Unio) callosus (Lea) — Lea, 1852: 33.