MUSSELp

MUSSELpdb

Introduction

Browse

d'basing

Search the MUSSELpdb

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
Thu 18 Dec 2025

Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Pleurobema pyriforme

nominal species Unio modicus Lea, 1857

image of type lot

Unio modicus Lea, 1857 = Pleurobema pyriforme

Lea, 1857. Proc. Acad. Nat. Sci. 9: 171.
Lea, 1859. Jour. Acad. Nat. Sci. 4 [O. 7]: 204 [22], pl. 24, fig. 86.
Type(s): HOLOTYPE USNM_84787, Chattahoochee R., 10 mi above Columbus, Ga.

= Pleurobema pyriforme

Taxonomic Opinions

+ Pleurobema pyriforme (Lea, 1857) — Williams et al., 2014

+ Pleurobema pyriforme (Lea, 1857) — Williams et al., 2011

+ Pleurobema pyriforme (Lea, 1857) — Williams et al., 2008

+ Pleurobema pyriforme (Lea, 1857) — Brim Box & Williams, 2000

+ Pleurobema pyriforme (Lea, 1857) — Burch, 1975

= Pleurobema modicum (Lea, 1857) — Haas, 1969

+ Pleurobema pyriforme (Lea, 1857) — Clench & Turner, 1956

= Pleurobema (s.s.) modicum (Lea, 1857) — Frierson, 1927

= Pleurobema modicum (Lea, 1857) — Ortmann, 1923

+ Pleurobema simpsoni Vanatta, 1915 — Ortmann & Walker, 1922

= Pleurobema (s.s.) modicum (Lea, 1857) — Simpson, 1914

= Pleurobema (s.s.) modica (Lea, 1857) — Simpson, 1900

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

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

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