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
Thu 17 July 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!

Publication Haas (1919): summary
     publication summary

Complete Citation

Haas, F. 1919. Die Unioniden. [in] H.C. Küster, Systematisches Conchylien-Cabinet von Martini und Chemnitz 9 (pt. 2, h. 51): 257-288, pls. 60-63. Available electronically.

Attributed Nominal Genera

Protunio Haas, 1912
Haas, 1912. Conch. Cab. 9 (pt. 2, h. 46): pl. 32.
Haas, 1913. Nachr. Bl. Dtsch. Malak. Ges. 45: 37.
Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): 257.
Type species: Unio messageri Bavay & Dautzenberg, 1901 (orig. desig.) = Protunio messageri

Velunio Haas, 1919
Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): 276. [nomen nudum]
Haas, 1920. Conch. Cab. 9 (pt. 2, h. 52): 292.
(intro'd as sub-gen. of Physunio Simpson, 1900)
Type species: Unio velaris Sowerby, 1868 (monotypy) = Lamellidens friersoni

Attributed Nominal Species

Parreysia dalliana Frierson, 1913
Frierson, 1913. Nautilus 26: 142.
‘Gould’ Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): pl. 32, figs. 3-4.
Type(s): LECTOTYPE SMF_13699B, Lashio Fl. Lashio nordl Shan Staaten.

Trapezoideus foliaceus Haas, 1919
‘Gould’ Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): pl. 32, figs. 3-4.
(misidentified reference to Unio foliaceus Gould, 1843)

Trapezoideus zayleimanensis Haas, 1919
‘Preston’ Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): 267.
‘Preston’ Haas, 1969. Das Tierreich 88: 76.
(error for Trapezoideus foliaceus var. zayleymanensis Preston, 1912)

Taxonomic Opinions

Harmandia castelneaui Rochebrune, 1904 = Triplodon corrugatus

Harmandia somboriensis Rochebrune, 1882

Physunio (s.s.) cambodiensis (Lea, 1856) = Lens contradens

Physunio (s.s.) eximius (Lea, 1856) = Lens eximius
+ Unio semiquadrata Sowerby, 1866

Physunio (s.s.) gravidus (Lea, 1856) = Physunio superbus
+ Unio abnormis Morelet, 1862
+ Unio superbus Sowerby, 1867

Physunio (s.s.) inornatus (Lea, 1856) = Lens inornatus

Physunio (s.s.) micropterus (Morelet, 1866) = Lens micropterus

Physunio (s.s.) semialatus (DeShayes & Jullien, 1874) = Lens micropterus
+ Unio micropterus Fischer, 1891

Protunio messageri (Bavay & Dautzenberg, 1901)

Trapezoideus dallianus (Frierson, 1913) = Yaukthwa dalliana
+ Unio foliaceus Martens, 1899

Trapezoideus exolescens (Gould, 1843) = Trapezidens exolescens

Trapezoideus foliaceus (Gould, 1843)
+ Unio peguensis Anthony, 1865

Trapezoideus foliaceus (Gould, 1843) = Yaukthwa peguensis

Trapezoideus ludovicianus (Rochebrune, 1882) = Lens micropterus

Trapezoideus misellus (Morelet, 1865) = Lens misellus
+ Unio siamensis Lea, 1866
+ Anodon pallegoixi Sowerby, 1867
+ Unio comptus Deshayes & Jullien, 1876
+ Unio fragilis Nevill, 1877
+ Unio exolescens Hanley & Theobald, 1874
+ Trapezoideus foliaceus var. zayleymanensis Preston, 1912

Trapezoideus misellus (Morelet, 1865) = Trapezidens exolescens

Trapezoideus misellus (Morelet, 1865) = Lens pallegoixi

Trapezoideus misellus (Morelet, 1865) = Lens comptus

Trapezoideus misellus (Morelet, 1865) = Yaukthwa zayleymanensis

Trapezoideus subclathratus (von Martens, 1899) = Indonaia subclathrata
 
NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."