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 | Lampsilini | Epioblasma
species Epioblasma capsaeformis (Lea, 1834): synonymy
3 specimens + 4 GenBank vouchers
Synonymy
Unio capsaeformis Lea, 1834
Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 31, pl. 2, fig. 4 [as ‘capsæformis’].
Type(s): HOLOTYPE MCZ_178570, Cumberland River, Tennessee.
Truncilla (Pilea) capsaeformis — Simpson (1900), Simpson (1914)
Truncilla capsaeformis — Ortmann (1912)
Truncilla capsæformis [sic] — Ortmann (1918)
Dysnomia (Pilea) capsaeformis — Ortmann (1924), Ortmann (1925)
Dysnomia (Capsaeformis) capsaeformis — Frierson (1927), Haas (1969), Haas (1969)
Epioblasma (sec. Capsaeformis) capsaeforme — Thiele (1934)
Dysnomia capsaeformis — Burch (1975)
Plagiola (Torulosa) capsaeformis — R.I. Johnson (1978)
Plagiola capsaeformis — R.I. Johnson (1980)
Epioblasma capsaeformis — Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Parmalee & Bogan (1998), Lydeard et al. (1999), ... Klymus et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)
Truncilla florentina Ortmann, 1912
‘Lea’ Ortmann, 1912. Ann. Carnegie Mus. 8: 359.
(misidentified reference to Unio florentinus Lea, 1857)
Truncilla capsæformis [sic] — Ortmann (1918)
Taxonomic History (since 1900)
Truncilla (Pilea) capsaeformis — Simpson (1900), Simpson (1914)
Truncilla capsaeformis — Ortmann (1912)
Truncilla capsæformis [sic] — Ortmann (1918)
Dysnomia (Pilea) capsaeformis — Ortmann (1924), Ortmann (1925)
Dysnomia (Capsaeformis) capsaeformis — Frierson (1927), Haas (1969), Haas (1969)
Epioblasma (sec. Capsaeformis) capsaeforme — Thiele (1934)
Dysnomia capsaeformis — Burch (1975)
Plagiola (Torulosa) capsaeformis — R.I. Johnson (1978)
Plagiola capsaeformis — R.I. Johnson (1980)
Epioblasma capsaeformis — Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Parmalee & Bogan (1998), Lydeard et al. (1999), ... Klymus et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)
