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.

Taxonomic Opinions

= Psorula rudis (Simpson, 1900) — Freeman et al., 2025: 246, Table 1.

+ Psoronaias crocodilorum (Morelet, 1849) — Cummings et al., 2025: 318, pl. 64 middle right.

+ Psoronaias semigranosa (von dem Busch in Philippi, 1843) — Graf & Cummings, 2021: 20.

= Psorula rudis — Inoue et al., 2020: 460.

= Psorula rudis (Simpson, 1914) — Pfeiffer et al., 2019: 108.

= Psorula rudis Simpson, 1900 — Bogan, 2010: [web].

= Psorula rudis (Simpson, 1900) — Graf & Cummings, 2007: 309.

= Psorula rudis (Simpson, 1900) — Haas, 1969: 320.

+ Psoronaias semigranosus (von dem Busch, 1845) — Goodrich & van der Schalie, 1937: 43.

= Amblema (sec. Psorula) rudis (Simpson) — Thiele, 1934: 827, [1260].

= Amblema (Psorula) rudis (Simpson) — Haas, 1930: 319.

= Rotundaria rudis (Simpson) — Haas, 1929: 339.

= Psoronaias rudis (Simpson, 1900) — Frierson, 1927: 63, sp. 274.

= Quadrula (Rotundaria) rudis Simpson, 1900 — Simpson, 1914: 910.

+ — Simpson, 1900.

= Quadrula rudis Simpson — Simpson, 1900: 82, pl. 3, fig. 2.

= Unio (Psoronaias) crocodilorum var. rudis Simpson, 1900 — Martens, 1900: 648.