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

nominal species Unio merdiger Reeve, 1865

Unio merdiger Reeve, 1865 = Unio crassus

Jay, 1839. Cat. Rec. Shells: 25, sp. 1065.
‘Walsh.’ Lea, 1852. Synopsis Fam. Naiades: ??. [nomen nudum]
specimen image from publication‘Watts’ Reeve, 1865. Conch. Icon. 16: pl. 28, sp. 145.

= Unio crassus

Taxonomic Opinions

+ Unio (sec. Lymnium) batavus (Maton & Rackett, 1807) — Simpson, 1914

+ Unio (sec. Lymnium) batavus (Maton & Rackett, 1807) — Simpson, 1900

+ Margaron (Unio) batavus (Mat. & Ract.) — Lea, 1870

= Unio merdiger ‘Watts’ in Jay — Reeve, 1865

+ Margaron (Unio) batavus (Lam.) — Lea, 1852