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
Wed 04 February 2026
Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Pleurobema
species Pleurobema verum (Lea, 1861): synonymy
Synonymy
Unio instructus Lea, 1861
Lea, 1861. Proc. Acad. Nat. Sci. 13: 59.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 8]: 82 [86], pl. 10, fig. 230.
Type(s): HOLOTYPE USNM_84640, Cahawba R., Ala.
Pleurobema (s.s.) instructa — Simpson (1900)
Pleurobema (s.s.) instructum — Simpson (1914), Frierson (1927)
Pleurobema verum — Haas (1969), Williams et al. (2008)
Unio verus Lea, 1861
Lea, 1861. Proc. Acad. Nat. Sci. 13: 40.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 8]: 83 [87], pl. 11, fig. 231.
Type(s): HOLOTYPE USNM_84589, Cahawba R., Ala.
Pleurobema (s.s.) vera — Simpson (1900)
Pleurobema (s.s.) verum — Simpson (1914)
Pleurobema (s.s.) instructum — Frierson (1927)
Pleurobema verum — Haas (1969), Burch (1975), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), ... Williams et al. (2017), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)
Taxonomic History (since 1900)
Pleurobema (s.s.) instructa — Simpson (1900)
Pleurobema (s.s.) vera — Simpson (1900)
Pleurobema (s.s.) instructum — Simpson (1914), Frierson (1927)
Pleurobema (s.s.) verum — Simpson (1914)
Pleurobema verum — Haas (1969), Burch (1975), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), ... Williams et al. (2017), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)
