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
Mon 2 March 2026
nominal species Unio purpuriatus Say, 1831
Unio purpuriatus Say, 1831 = nomen dubium
Say, 1831. New Harm. Dissem. 1(29): [no pagination].
Say, 1858. [in] Binney, Compl. Writings T. Say: 133.
Type(s): TYPE LOST XXX_UNKNOWN, México....in a stream a few leagues from Vera‑Cruz.
Taxonomic Opinions
+ — Cummings et al., 2025: 396.
= Disconaias purpuriata (Say, 1831) — Czaja et al., 2023: 87.
= Disconaias purpuriata (Say, 1831) — Graf & Cummings, 2021: 17.
= Disconaias purpuriata Say, 1831 — Bogan, 2010: [11].
= Disconaias purpuriata (Say, 1831) — Graf & Cummings, 2007: 306.
= Lampsilis (Disconaias) purpuriata (Say, 1831) — Haas, 1969: 468.
= Lampsilis (Disconaias) purpuriata (Say) — Haas, 1929: 315.
= Lampsilis (Disconaias) purpuriata (Say, 1831) — Frierson, 1927: 83, sp. 367.
+ Nephronaias medellina (Lea, 1838) — Simpson, 1914: 255.
= Unio purpuriatus Say, 1831 — Simpson, 1914: 729.
+ Nephronaias medellinus (Lea, 1838) — Simpson, 1900: 592.
+ Unio (Elliptio) medellinus Lea, 1838 — Martens, 1900: 517.
+ Unio (Graphonaias) medellinus Lea, 1838 — Fischer & Crosse, 1894: 603.
= Unio purpuriatus Say — Singley, 1893: 322.
= Unio purpuriatus Say — B.H. Wright, 1888: [5].
+ Margaron (Unio) medellinus (Lea) — Lea, 1870: 45, 64.
+ Unio medellinus Lea — Küster, 1861: 162.
= Unio purpuriatus Say, 1829 — Conrad, 1853: 256.
+ Margaron (Unio) medellinus (Lea) — Lea, 1852: 29, 40.
+ — Lea, 1838: 26.
+ — Lea, 1836: 41.
= Unio purpuriatus Say — Ferussac, 1835: 29.
