Bivalvia | ... | Unionidae | Unioninae | Anodontini | Alasmidontina | Pyganodon fragilis

van der Schalie, 1938. Ann. Carnegie Mus. 27(12): 167-170, pl. 16.
Type(s): TYPE CM_187, Spout Pond, Arm, Ferryland District, Southern Shore, Newfoundland.
+ Pyganodon fragilis (Lamarck, 1819) — Stanton et al., 2012
+ Anodonta cataracta fragilis (Lamarck, 1819) — R.I. Johnson, 1980
= Anodonta (Pyganodon) brooksiana van der Schalie, 1938 — Haas, 1969