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Thu 3 September 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Epioblasma triquetra

nominal species Unio cuneatus Swainson, 1823

= Epioblasma triquetra

Taxonomic Opinions

+ Epioblasma triquetra (Rafinesque, 1820) — Watters et al., 2009

+ Epioblasma triquetra (Rafinesque, 1820) — Williams et al., 2008

+ Epioblasma triquetra (Rafinesque, 1820) — Parmalee & Bogan, 1998

+ Plagiola (Truncillopsis) triquetra (Rafinesque, 1820) — R.I. Johnson, 1978

+ Dysnomia triquetra (Rafinesque, 1820) — Burch, 1975

+ Dysnomia (Truncillopsis) triquetra (Rafinesque, 1820) — Haas, 1969

+ Dysnomia (Truncillopsis) triquetra (Rafinesque, 1820) — Frierson, 1927

+ Dysnomia (Truncillopsis) triquetra (Rafinesque, 1820) — Ortmann & Walker, 1922

+ Truncilla (s.s.) triquetra Rafinesque, 1820 — Simpson, 1914

+ Truncilla (s.s.) triquetra Rafinesque — Simpson, 1900

+ Margaron (Unio) triangularis (Bar.) — Lea, 1870

+ Margaron (Unio) triangularis (Bar.) — Lea, 1852

+ Unio triangularis — Küster, 1852

+ Unio triangularis Barnes — Hanley, 1843

= Aeglia cuneata Sw. — Swainson, 1840

+ Margarita (Unio) triangularis Bar. Eat. Hild. Say — Lea, 1838

+ Margarita (Unio) triangularis (Barnes, 1823) — Lea, 1836

+ Unio triqueter Raf. — Ferussac, 1835

+ Unio formosus Lea, 1831 — Ravenel, 1834