Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Fusconaia masoni

Lea, 1852. Trans. Amer. Phil. Soc. 10 [O. 5]: 260 [16], pl. 15, fig. 10.
Lea, 1852. Proc. Amer. Phil. Soc. 5: 251. [nomen nudum]
Type(s): HOLOTYPE USNM_85698, Abbeville District, S.C.
+ Fusconaia masoni (Conrad, 1834) — Burch, 1975: 167.
+ Pleurobema (Lexingtonia) masoni (Conrad, 1834) — R.I. Johnson, 1970: 301.
+ Elliptio (s.s.) masoni (Conrad, 1834) — Haas, 1969: 216.
+ Elliptio (s.s.) masoni (Conrad, 1834) — Frierson, 1927: 25.
= Unio (sec. Elliptio) merus Lea, 1852 — Simpson, 1914: 612.
= Unio (sec. Elliptio) merus Lea, 1852 — Simpson, 1900: 708.
= Unio merus Lea, 1852 — B.H. Wright, 1888: [4].
= Margaron (Unio) merus (Lea) — Lea, 1870: 54.
= Unio merus Lea, 1852 — Conrad, 1853: 252.
= Margaron (Unio) merus (Lea) — Lea, 1852: 33, Corrigenda et Addenda.