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nominal species Quadrula (Rotundaria) profunda Simpson, 1914

Quadrula (Rotundaria) profunda Simpson, 1914 = Psoronaias crocodilorum

Simpson, 1914. Descr. Cat. Naiades: 907.
Type(s): HOLOTYPE (MONOTYPY) USNM_128987, Usumacinta River, Guatemala.

= Psoronaias crocodilorum

Taxonomic Opinions

= Psorula profunda (Simpson, 1914) — Freeman et al., 2025

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

= Psoronaias profunda (Simpson, 1914) — Czaja et al., 2023

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

= Psorula profunda — Inoue et al., 2020

= Psorula profunda (Simpson, 1914) — Pfeiffer et al., 2019

= Psorula profunda Simpson, 1914 — Bogan, 2010

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

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

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

= Rotundaria profunda (Simpson) — Haas, 1929

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

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