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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 | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Psoronaias guatemalensis

nominal species Quadrula guatemalensis Simpson, 1900

Simpson, 1900. Proc. Acad. Nat. Sci. 52: 83, pl. 2, fig. 4.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 796.
Simpson, 1914. Descr. Cat. Naiades: 909.
Type(s): HOLOTYPE (ORIG. DESIG.) USNM_128991, Usumacinta River, Guatemala.

= Psoronaias guatemalensis

Taxonomic Opinions

= Psorula guatemalensis (Simpson, 1900) — Freeman et al., 2025

+ Psoronaias kuxensis Frierson, 1917 — Cummings et al., 2025

= Psoronaias guatemalensis (Simpson, 1900) — Czaja et al., 2023

= Psoronaias guatemalensis (Simpson, 1900) — Graf & Cummings, 2021

= Psorula guatemalensis — Inoue et al., 2020

= Psorula guatemalensis (Simpson, 1900) — Pfeiffer et al., 2019

= Psorula guatemalensis Simpson, 1900 — Bogan, 2010

= Psorula guatemalensis (Simpson, 1900) — Graf & Cummings, 2007

= Psorula guatemalensis (Simpson, 1900) — Haas, 1969

= Amblema (Psorula) guatemalensis Simps. — Haas, 1930

= Psoronaias guatemalensis (Simpson, 1900) — Frierson, 1927

= Quadrula (Rotundaria) guatemalensis Simpson, 1900 — Simpson, 1914

= Quadrula (Rotundaria) guatemalensis (Simpson, 1900) — Simpson, 1900

= Quadrula guatemalensis Simpson — Simpson, 1900
 
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