MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Fri 13 February 2026
Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Elliptio
species Elliptio fraterna (Lea, 1852): synonymy
Synonymy
Unio fraternus Lea, 1852
Lea, 1852. Trans. Amer. Phil. Soc. 10 [O. 5]: 263 [19], pl. 16, fig. 15.
Lea, 1852. Proc. Amer. Phil. Soc. 5: 251. [nomen nudum]
Type(s): LECTOTYPE USNM_85396, Abbeville, S.C.
Unio (sec. Elliptio) fraternus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) fraternus — Frierson (1927), Haas (1969)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) fraterna — R.I. Johnson (1970), Burch (1975)
Elliptio fraterna — Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Lydeard et al. (1999), Brim Box & Williams (2000), ... Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), MolluscaBase (2024), FMCS (2025)
Taxonomic History (since 1900)
Unio (sec. Elliptio) fraternus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) fraternus — Frierson (1927), Haas (1969)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) fraterna — R.I. Johnson (1970), Burch (1975)
Elliptio fraterna — Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Lydeard et al. (1999), Brim Box & Williams (2000), ... Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), MolluscaBase (2024), FMCS (2025)
