MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Wed 04 February 2026
Bivalvia | ... | Unionidae | Unioninae | Anodontini | Alasmidontina | Alasmidonta undulata
nominal species Alasmodonta sculptilis Say, 1829
Alasmodonta sculptilis Say, 1829 = Alasmidonta undulata
Say, 1829. New Harm. Dissem. 2(22): 339, sp. 1.
Say, 1858. [in] Binney, Compl. Writings T. Say: 137.
Taxonomic Opinions
+ Alasmidonta (s.s.) undulata (Say, 1817) — Clarke, 1981
+ Alasmidonta (s.s.) undulata (Say, 1816) — Burch, 1975
+ Alasmidonta (s.s.) undulata (Say, 1817) — R.I. Johnson, 1970
+ Alasmidonta (s.s.) undulata (Say, 1817) — Haas, 1969
+ Alasmidonta (s.s.) undulata (Say, 1817) — Frierson, 1927
+ Alasmidonta (s.s.) undulata (Say, 1817) — Simpson, 1914
+ Alasmidonta (s.s.) undulata (Say, 1816) — Simpson, 1900
+ Margaron (Margaritana) undulata (Say) — Lea, 1870
+ Unio undulatus Say, 1817 — Sowerby, 1868
+ Margaron (Margaritana) undulata (Say) — Lea, 1852
= Strophitus sculptilis (Say) — Stimpson, 1851
+ Unio undulata Say — Hanley, 1843
+ Margarita (Margaritana) undulata Say — Lea, 1838
+ Margarita (Margaritana) undulata (Say, 1817) — Lea, 1836
= Alasmodonta sculptilis Say, Conrad — Ferussac, 1835
