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

nominal species Unio batavus var. nanus de Joannis, 1859

Unio batavus var. nanus de Joannis, 1859 = Unio crassus

(misidentified reference to Unio nana Lamarck, 1819)
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: pl. 9, fig. 10. [in part]

Taxonomic Opinions

+ Unio (Rhomboïdiana) nana de Lamarck, 1819 — Germain, 1904: 254.