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
Thu 22 January 2026
Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Euglesa fallax
nominal species Pisidium fallax Sterki, 1896
Pisidium fallax Sterki, 1896 = Euglesa fallax
Sterki, 1896. Nautilus 10(2): 20.
Taxonomic Opinions
= Euglesa (Casertiana) fallax (Sterki, 1896) — Bespalaya et al., 2023
= Pisidium fallax — Saito et al., 2022
= Euglesa (Cyclocalyx) fallax Sterki, 1896 — Mouthon & Forcellini, 2017
= Pisidium (Cyclocalyx) fallax — Bespalaya et al., 2017
= Pisidium (Cyclocalyx) fallax — Fuentealba-Jara et al., 2017
= Pisidium fallax — Clewing et al., 2013
= Pisidium fallax Sterki, 1896 — ITIS, 2012
= Pisidium fallax Sterki, 1896 — Bogan, 2010
= Pisidium fallax — Schultheiß et al., 2008
= Pisidium (Cyclocalyx) fallax Sterki, 1896 — Mackie, 2007
= Cyclocalyx fallax Sterki — Lee & Ó Foighil, 2003
= Pisidium fallax Sterki, 1896 — Turgeon et al., 1998
= Pisidium fallax Sterki — Mackie et al., 1980
= Pisidium (Cyclocalyx) fallax Sterki, 1896 — Burch, 1975
= Pisidium (Cyclocalyx) fallax Sterki, 1890 [sic] — Clarke, 1973
= Pisidium fallax Sterki, 1896 — Herrington, 1962
