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Page last updated
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!

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Bivalvia | ... | Unionidae | Ambleminae | Quadrulini | Quadrulina | Quadrula couchiana

nominal species Unio couchianus Lea, 1860

Lea, 1860. Proc. Acad. Nat. Sci. 12: 305.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 8]: 371 [53], pl. 66, fig. 196.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_85728 (by R.I. Johnson, 1974: 38), Rio Salado, Mexico.

= Quadrula couchiana

Taxonomic Opinions

= Quadrula couchiana (Lea, 1860) — FMCS, 2025

= Quadrula couchiana (Lea, 1860) — Cummings et al., 2025

= Quadrula couchiana (I. Lea, 1860) — Czaja et al., 2023

= Quadrula couchiana (Lea, 1860) — Neemuchwala et al., 2023

= Quadrula couchiana (Lea, 1860) — Hopper et al., 2023

= Quadrula couchiana (Lea, 1860) — Graf & Cummings, 2021

= Quadrula couchiana (Lea, 1860) — FMCS, 2021

= Quadrula couchiana — Tiemann et al., 2020

= Quadrula couchiana (Lea, 1860) — Lopes-Lima et al., 2019

= Quadrula couchiana (Lea, 1860) — Williams et al., 2017

= Quadrula couchiana (I. Lea, 1860) — ITIS, 2012

= Quadrula couchiana — Haag, 2012

= Quadrula couchiana Lea, 1860 — Bogan, 2010

= Amphinaias couchiana — Cummings & Graf, 2010

= Amphinaias couchiana (Lea, 1860) — Graf & Cummings, 2007

= Quadrula counchiana [sic] Lea, 1860 — Contreras-Arquieta, 2000

= Quadrula couchiana (Lea, 1860) — R.I. Johnson, 1999

= Quadrula couchiana (Lea, 1860) — Turgeon et al., 1998

= Quadrula couchiana (Lea, 1860) — Howells et al., 1996

= Amphinaias couchiana (Lea, 1860) — IUCN, 1996

= Quadrula couchiana (I. Lea) — Williams et al., 1993

= Quadrula couchiana (Lea, 1860) — Turgeon et al., 1988

= Quadrula (Pustulosa) couchiana (Lea, 1860) — Haas, 1969

= Quadrula (Amphinaias) couchianus (Lea, 1860) — Haas, 1969

= Quadrula (sec. Amphinaias) couchiana (Lea) — Thiele, 1934

= Quadrula (Bullata) couchiana (Lea, 1860) — Frierson, 1927

= Quadrula (sec. Theliderma) couchiana (Lea, 1860) — Simpson, 1914

= Quadrula (sec. Theliderma) couchiana (Lea, 1860) — Simpson, 1900

= Unio (Pleurobema) couchianus Lea, 1860 — Martens, 1900

= Unio (Amphinaias) couchianus I. Lea, 1860 — Fischer & Crosse, 1894

= Unio couchianus Lea — B.H. Wright, 1888

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

= Unio couchianus (Lea, 1860) — Sowerby, 1868
 
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