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

Data last updated
Mon 1 Dec 2025

Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Elliptio crassidens

nominal species Unio incrassatus Lea, 1840

Unio incrassatus Lea, 1840 = Elliptio crassidens

Lea, 1840. Proc. Amer. Phil. Soc. 1: 286.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 217 [55], pl. 16, fig. 34.
Type(s): HOLOTYPE USNM_84537, Columbus, Ga.

= Elliptio crassidens

Taxonomic Opinions

+ Elliptio crassidens (Lamarck, 1819) — Williams et al., 2014

+ Elliptio crassidens (Lamarck, 1819) — IUCN, 2011

+ Elliptio crassidens (Lamarck, 1819) — Williams et al., 2011

+ Elliptio crassidens (Lamarck, 1819) — Williams et al., 2008

+ Elliptio crassidens (Lamarck, 1819) — Brim Box & Williams, 2000

+ Elliptio crassidens Lamarck, 1819 — Parmalee & Bogan, 1998

+ Elliptio (s.s.) crassidens (Lamarck, 1819) — Burch, 1975

+ Elliptio (s.s.) crassidens crassidens (Lamarck, 1819) — R.I. Johnson, 1970

+ Elliptio (s.s.) crassidens crassidens (Lamarck, 1819) — Haas, 1969

= Elliptio crassidens incrassatus (Lea, 1840) — Clench & Turner, 1956

= Elliptio (s.s.) niger-incrassatus (Lea, 1840) — Frierson, 1927

= Unio (sec. Elliptio) crassidens var. incrassatus Lea, 1840 — Simpson, 1914

= Unio (sec. Elliptio) incrassatus Lea, 1840 — Simpson, 1900

+ Unio crassidens Lamarck — Call, 1895

= Unio incrassatus Lea — B.H. Wright, 1888

= Margaron (Unio) incrassatus (Lea) — Lea, 1870

= Unio incrassatus Lea, 1840 — Reeve, 1865

= Unio incrassatus Lea — Küster, 1861

= Unio (Lampsilis) incrassatus Lea — Adams & Adams, 1857

+ Unio niger Raf. — Conrad, 1853

= Margaron (Unio) incrassatus (Lea) — Lea, 1852