MUSSELpdb

Taxonomy

all genera

Summary

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
Mon 2 March 2026

nominal species Unio sowerbianus Lea, 1834

Unio sowerbianus Lea, 1834 = Epioblasma haysiana

specimen image from publication Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 180 [68], pl. 10, fig. 28.

Taxonomic Opinions

+ Epioblasma haysiana (Lea, 1834) — Williams et al., 2008: 243.

+ Epioblasma haysianus (Lea, 1834) — Parmalee & Bogan, 1998: 91.

+ Plagiola (Pilea) haysiana (Lea, 1834) — R.I. Johnson, 1978: 280.

+ Dysnomia haysiana (Lea, 1834) — Burch, 1975: 173.

+ Dysnomia (Penita) haysiana (Lea, 1834) — Haas, 1969: 483.

+ Dysnomia (Penita) haysiana (Lea, 1834) — Frierson, 1927: 94.

+ Truncilla (Scalenaria) haysiana (Lea, 1834) — Simpson, 1914: 17.

= Unio soweerbianus [sic] Lea — de Gregorio, 1914: 55.

+ Truncilla (Scalenaria) haysiana Lea — Simpson, 1900: 520.

= Unio sowerbianus Lea — B.H. Wright, 1888: [5].

= Margaron (Unio) sowerbianus (Lea) — Lea, 1870: 38.

= Unio sowerbyanus [sic] Lea, 1834 — Reeve, 1864: pl. 14, sp. 58.

= Unio (Lampsilis) sowerbianus Lea — Adams & Adams, 1857: 496.

= Unio sowerbianus Lea, 1834 — Conrad, 1853: 257.

+ Scalenaria haysiana — Agassiz, 1852: 43.

= Margaron (Unio) sowerbianus (Lea) — Lea, 1852: 25.

= Unio sowerbyanus [sic] Lea — Küster, 1852: 62, pl. 14, fig. 3.

= Unio sowerbianus Lea — Hanley, 1843: 185, pl. 21, fig. 55.

= Margarita (Unio) sowerbianus Lea — Lea, 1838: 17.

= Unio sowerbianus Lea, 1834 — Conrad, 1837: 66, pl. 37, fig. 1.

= Margarita (Unio) sowerbianus (Lea, 1834) — Lea, 1836: 20.