MUSSELp

MUSSELpdb

Introduction

Browse

d'basing

Taxonomy

all genera

Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae


Species & Genus Richness by
Taxonomy

Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

East Asia

Australasia


Species Richness & Endemism by
Geography

Page last updated
Wed 1 October 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Search the database pages:

nominal species Unio purpuriatus Say, 1831

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.

= unionoid species

Taxonomic Opinions

+ Cummings et al., 2025

= Disconaias purpuriata (Say, 1831) — Czaja et al., 2023

= Disconaias purpuriata (Say, 1831) — Graf & Cummings, 2021

= Disconaias purpuriata Say, 1831 — Bogan, 2010

= Disconaias purpuriata (Say, 1831) — Graf & Cummings, 2007

= Lampsilis (Disconaias) purpuriata (Say, 1831) — Haas, 1969

= Lampsilis (Disconaias) purpuriata (Say) — Haas, 1929

= Lampsilis (Disconaias) purpuriata (Say, 1831) — Frierson, 1927

+ Nephronaias medellina (Lea, 1838) — Simpson, 1914

= Unio purpuriatus Say, 1831 — Simpson, 1914

+ Nephronaias medellinus (Lea, 1838) — Simpson, 1900

+ Unio (Elliptio) medellinus Lea, 1838 — Martens, 1900

+ Unio (Graphonaias) medellinus Lea, 1838 — Fischer & Crosse, 1894

= Unio purpuriatus Say — Singley, 1893

= Unio purpuriatus Say — B.H. Wright, 1888

+ Margaron (Unio) medellinus (Lea) — Lea, 1870

+ Unio medellinus Lea — Küster, 1861

= Unio purpuriatus Say, 1829 — Conrad, 1853

+ Margaron (Unio) medellinus (Lea) — Lea, 1852

+ Lea, 1838

+ Lea, 1836

= Unio purpuriatus Say — Ferussac, 1835

 
NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."