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nominal species Unio callipygus Drouët, 1893

Unio callipygus Drouët, 1893 = Unio tumidiformis

Drouët, 1893. J. de Conch. 41: 172.
Drouët, 1893. Mém. Acad. Sci. Dijon 4: 203, pl. 2, fig. 1.

Taxonomic Opinions

+ Unio tumidiformis da Silva e Castro, 1885 — Lopes-Lima et al., 2024: suppl. append. 2, p. 23.

+ Unio tumidiformis Castro, 1885 — Reis & Araujo, 2009: 1933.

+ Unio tumidiformis Castro, 1885 — Araujo et al., 2009: 49.

+ Unio pictorum mucidus Morelet, 1845 — Haas, 1969: 28.

+ Unio pictorum mucidus Morelet, 1845 — Haas, 1940: 123.

= Unio callipygus Drouët — Kobelt, 1903: 31, pl. 281, fig. 1803.