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Page last updated
Wed 1 October 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!

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Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Nephronaias caldwellii

nominal species Unio averyi Lea, 1859

Lea, 1859. Proc. Acad. Nat. Sci. 11: 281.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 269 [87], pl. 44, fig. 149.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84385 (by R.I. Johnson, 1974: 18), Chumnagua R., Isth. of Darien.

= Nephronaias caldwellii

Taxonomic Opinions

+ Nephronaias caldwellii (Lea, 1858) — Cummings et al., 2025

+ Barynaias caldwellii (Lea, 1858) — Haas, 1969

= Elliptio (Nephronaias) averyi (Lea) — Haas, 1929

= Elliptio (Barynaias) averyi (Lea, 1859) — Frierson, 1927

= Nephronaias averyi (Lea, 1859) — Simpson, 1914

= Nephronaias averyi (Lea, 1859) — Ihering, 1901

= Nephronaias averyi (Lea, 1859) — Simpson, 1900

+ Unio (Arotonaias) caldwellii Lea, 1858 — Martens, 1900

= Unio averyi Lea — B.H. Wright, 1888

= Margaron (Unio) averyi (Lea) — Lea, 1870

 
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