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nominal species Unio (Crenodonta) stolli Martens, 1900

Unio (Crenodonta) stolli Martens, 1900 = Megalonaias nickliniana

Martens, 1900. Biol. Centr.-Amer., Moll.: 492, pl. 29, fig. 2.
Type(s): HOLOTYPE (MONOTYPY) ZMB_39464, Rio de las Salinas, Guatemala.

Taxonomic Opinions

+ Megalonaias nickliniana (Lea, 1834) — Cummings et al., 2025: 349, pl. 72 bottom left.

+ Megalonaias nervosa (Rafinesque, 1820) — Pfeiffer et al., 2018: 147.

+ Megalonaias nickliniana digitata (Morelet, 1851) — Haas, 1969: 286.

= Crenodonta stolli (Martens) — Haas, 1929: 333.

+ Amblema (Megalonaias) nickliniana-digitata (Morelet, 1851) — Frierson, 1927: 62.

= Quadrula (sec. Crenodonta) stolli (von Martens, 1900) — Simpson, 1914: 828.

= Quadrula (sec. Crenodonta) stolli (von Martens, 1900) — Simpson, 1900: 771.

= Unio (Crenodonta) stolli n.n. — Martens, 1900: 492, pl. 29, fig. 2.