Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio crassus

nominal species Unio crassissimus Hanley, 1843

Unio crassissimus Hanley, 1843 = Unio crassus

Schlüter, 1838. Kurzgef. Syst. Verz. Conch. Samml.: 33 [as ‘Mysca tumida var. crassissima’]. [nomen nudum]
specimen image from publication‘Fer.’ Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 209.

= Unio crassus

Taxonomic Opinions

+ Margaritana crassa (Retzius, 1788) — Simpson, 1914

+ Margaritana crassa (Retzius, 1788) — Simpson, 1900

+ Margaron (Unio) crassus (Retz.) — Lea, 1870

= Unio crassissimus Fer. — Hanley, 1843

= Mysca tumida var. crassissima m. — Schlüter, 1838