MUSSELpdb | nomainal sp. Quadrula (Rotundaria) quadrata Simpson, 1914

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nominal species Quadrula (Rotundaria) quadrata Simpson, 1914

Simpson, 1914. Descr. Cat. Naiades: 911.
Type(s): LECTOTYPE USNM_128996 (by R.I. Johnson, 1975: 18), Usumacinta River, Guatemala.

= Psoronaias crocodilorum

Taxonomic Opinions

+ Psoronaias crocodilorum (Morelet, 1849) — Cummings et al., 2025

= Psoronaias quadrata (Simpson, 1914) — Graf & Cummings, 2021

= Psorula quadrata Simpson, 1914 — Bogan, 2010

= Psorula quadrata (Simpson, 1914) — Graf & Cummings, 2007

= Psorula quadrata (Simpson, 1914) — Haas, 1969

= Amblema (Psorula) quadrata Simpson — Haas, 1930

= Rotundaria quadrata (Simpson) — Haas, 1929

= Psoronaias quadrata (Simpson, 1914) — Frierson, 1927

= Quadrula (Rotundaria) quadrata n. s. — Simpson, 1914

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