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

Frierson, 1910. Nautilus 23(9): 113, pl. 10.
LECTOTYPE [AS HOLOTYPE] UMMZ_104010 (by R.I. Johnson, 1972: 143), Clear Lake, Ulvers Pt., Deuel Co., South Dakota.
+ Pyganodon grandis grandis (Say, 1829) — Watters et al., 2009: 261.
+ Pyganodon grandis (Say, 1829) — Williams et al., 2008: 639.
+ Pyganodon grandis (Say, 1829) — Parmalee & Bogan, 1998: 207.
+ Anodonta grandis grandis Say, 1829 — R.I. Johnson, 1980: 92.
= Anodonta (Pyganodon) grandis dakota Frierson — Haas, 1969: 366.
- UNASSIGNED — R.I. Johnson, 1956: 111.
paratype MCZ_134118 — Ulvers Point, Clear Lake, Deuel Co., South Dakota (ex B. Walker coll’n)
= Anodonta (Pyganodon) grandis-dakota Frierson, 1910 — Frierson, 1927: 15, sp. 10e.
= Anodonta (Group of A. grandis) dakota Frierson — Simpson, 1914: 425.