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
Fri 13 February 2026
nominal species Pisidium parvulum ‘Benson, in litt.’ Prime, 1870
Pisidium parvulum ‘Benson, in litt.’ Prime, 1870 = nomen dubium
‘Benson, in litt.’ Prime, 1870. Amer. J. Conch. 5: 171. [nomen nudum]
Taxonomic Opinions
+ Pisidium bensoni Prime — Prime, 1895: 61.
= Pisidium parvulum Benson — Prime, 1870: 171.
