species Betekeia athleta (Lindholm, 1932): synonymy

Unio athleta Lindholm, 1932

Lindholm, 1932. Trudy Vses. Geologo-Razvedo. Ob. 238: 30, pl. 4, figs. 26-28.

Bogatschevinaia (Betekeia) athleta — Starobogatov (1970)

Unio robustus Lindholm, 1932

(homonym of Unio robustus J. de C. Sowerby, 1840)
Lindholm, 1932. Trudy Vses. Geologo-Razvedo. Ob. 238: 28, pl. 5, figs. 24a-c.

Unio robustus fortis Lindholm, 1932

(intro'd as intra-sp. of Unio robustus Lindholm, 1932)
Lindholm, 1932. Trudy Vses. Geologo-Razvedo. Ob. 238: 29, pl. 5, figs. 25a-b.

Unio athleta praeruptus Lindholm, 1932

(intro'd as intra-sp. of Unio athleta Lindholm, 1932)
Lindholm, 1932. Trudy Vses. Geologo-Razvedo. Ob. 238: 30, pl. 5, figs. 29a-c.