Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Psoronaias crocodilorum

nominal species Quadrula rudis Simpson, 1900

Quadrula rudis Simpson, 1900 = Psoronaias crocodilorum

Simpson, 1900. Proc. Acad. Nat. Sci. 52: 82, pl. 3, fig. 2.
Simpson, 1914. Descr. Cat. Naiades: 910.
Type(s): HOLOTYPE (MONOTYPY) USNM_84210, Rio Taxtunilha, (tributary to the Rio de la Pasion), Guatemala.

= Psoronaias crocodilorum

Taxonomic Opinions

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

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

+ Psoronaias semigranosa (von dem Busch in Philippi, 1843) — Graf & Cummings, 2021

= Psorula rudis — Inoue et al., 2020

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

= Psorula rudis Simpson, 1900 — Bogan, 2010

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

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

+ Psoronaias semigranosus (von dem Busch, 1845) — Goodrich & van der Schalie, 1937

= Amblema (sec. Psorula) rudis (Simpson) — Thiele, 1934

= Amblema (Psorula) rudis (Simpson) — Haas, 1930

= Rotundaria rudis (Simpson) — Haas, 1929

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

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

+ — Simpson, 1900

= Quadrula rudis Simpson — Simpson, 1900

= Unio (Psoronaias) crocodilorum var. rudis Simpson, 1900 — Martens, 1900