Bivalvia | Unionoida nominal species Unio haessleini Modell, 1935
Modell, 1935, Arch. Moll. 67: 132, pl. 10, figs. 6-7.
Modell, 1943, Arch. Moll. 75: 114, pl. 1, figs. 6a-b.
= unionoid fossil Taxonomic Opinions
= Unio haessleini Modell, 1935 — Modell, 1943
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