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
Mon 2 March 2026
nominal species Pisidium?? riograndensis Morretes, 1949
Pisidium?? riograndensis Morretes, 1949 = nomen dubium
‘Ihering’ Morretes, 1949. Arqu. Mus. Paranaense 7: ??. [nomen nudum]
Taxonomic Opinions
= Byssanodonta riograndensis (Ihering in Morretes, 1949) — Simone, 2006: 305, fig. 1071.
