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nominal species Unio macropygus da Silva e Castro, 1885

= Unio tumidiformis

Taxonomic Opinions

+ Unio tumidiformis da Silva e Castro, 1885 — Lopes-Lima et al., 2024

+ Unio tumidiformis Castro, 1885 — Reis & Araujo, 2009

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

+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969

+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940

= Unio (groupe de l’U. tumidus) macropygus Castro, 1885 — Locard, 1899

= Unio macropygus Silva, 1885 — Westerlund, 1890

= Unio (Tumidusiana) macropygus Castro — Locard, 1889

= Unio macropygus — da Silva e Castro, 1885