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
Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Euglesa variabilis
nominal species Pisidium variabile Prime, 1852
Pisidium variabile Prime, 1852 = Euglesa variabilis
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 163.
Prime, 1852. Boston J. Nat. Hist. 6(3): 351, pl. 11, figs. 7-9.
Prime, 1865. Smithsonian Misc. Coll. (145): 66, figs. 69-70.
Taxonomic Opinions
= Euglesa (Casertiana) variabilis (Prime, 1852) — Bespalaya et al., 2023: Table 1.
= Pisidium variabile — Saito et al., 2022: Table S1.
= Euglesa variabile (Prime, 1852) — Vinarski et al., 2020: Appendix 1.
= Euglesa (Cyclocalyx) variabile Prime, 1852 — Mouthon & Forcellini, 2017: 226.
= Pisidium (Cyclocalyx) variabile — Bespalaya et al., 2017: 2123, Table S2.
= Pisidium (Cyclocalyx) variabile — Fuentealba-Jara et al., 2017: 116.
= Pisidium variabile — Clewing et al., 2013: 251.
= Pisidium variabile Prime, 1852 — ITIS, 2012: [web].
= Pisidium variabile Prime, 1852 — IUCN, 2011: [web].
= Pisidium variabile — Stunžėnas et al., 2011: 108.
= Pisidium variabile Prime, 1852 — Bogan, 2010: [web].
= Pisidium variabile — Schultheiß et al., 2008: Appendix I.
= Pisidium (Cyclocalyx) variabile Prime, 1852 — Mackie, 2007: 349, figs. 8.157-8.163.
= Cyclocalyx variabile Prime — Lee & Ó Foighil, 2003: 249, table 1.
= Pisidium (Cyclocalyx) variabile Prime, 1852 — Cooley & Ó Foighil, 2000: 302.
= Pisidium variabile Prime, 1852 — Turgeon et al., 1998: 47.
= Pisidium variabile Prime — Mackie et al., 1980: 7.
= Pisidium (Cyclocalyx) variabile Prime, 1852 — Burch, 1975: 8.
= Pisidium (Cyclocalyx) variabile Prime, 1852 — Clarke, 1973: 197, pl. 19, fig. 2.
= Pisidium variabile Prime, 1851 — Herrington, 1962: 50, pl. 3, fig. 4; pl. 7, fig. 4.
= Pisidium variabile Prime — Prime, 1895: 50.
= Pisidium variabile Prime — Prime, 1870: 173.
= Pisidium variabile Prime — Prime, 1865: 66, figs. 69-70.
= Pisidium variabile Nobis — Prime, 1852: 348, pl. 11, figs. 7-9.
