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 19 March 2026
Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Sphaerium occidentale
nominal species Cyclas occidentale Lewis, 1856
Cyclas occidentale Lewis, 1856 = Sphaerium occidentale
‘Prime’ Lewis, 1856. Proc. Boston Soc. Nat. Hist. 6(1): 2.
Prime, 1865. Smithsonian Misc. Coll. (145): 41, fig. 34.
‘Prime’ Lewis, 1872. Proc. Acad. Nat. Sci. 24: 109.
(new name for Cyclas ovalis Prime, 1853)
Taxonomic Opinions
= Sphaerium (Herringtonium) occidentale (Lewis, 1856) — Bespalaya et al., 2023: Table 1.
= Sphaerium occidentale — Saito et al., 2022: Table S1.
= Sphaerium occidentale — Bespalaya et al., 2022: Table S1.
= Sphaerium occidentale — Bespalaya et al., 2017: 2123, Table S2.
= Sphaerium (Herringtonium) occidentale — Fuentealba-Jara et al., 2017: 116.
= Sphaerium occidentale — Clewing et al., 2013: 251.
= Sphaerium occidentale (J. Lewis, 1856) — ITIS, 2012: [web].
= Sphaerium occidentale — Stunžėnas et al., 2011: 108.
= Sphaerium occidentale Lewis, 1856 — Bogan, 2010: [web].
= Sphaerium occidentale — Schultheiß et al., 2008: Appendix I.
= Sphaerium occidentale Prime, 1853 — Mackie, 2007: 226, 76, figs. 8.10-8.12.
= Sphaerium (Herringtonium) occidentale (Prime) — Lee & Ó Foighil, 2003: 249, table 1.
= Sphaerium (Herringtonium) occidentale (Prime, 1860) — Korniushin & Glaubrecht, 2002: 452.
= Sphaerium occidentale (Lewis, 1856) — Lee & Ó Foighil, 2002: 114.
= Sphaerium (Herringtonium) occidentale (Lewis, 1856) — Cooley & Ó Foighil, 2000: 302.
= Sphaerium occidentale (J. Lewis, 1856) — Turgeon et al., 1998: 47.
= Sphaerium occidentale (Prime) — Mackie et al., 1980: 7.
= Sphaerium (Herringtonium) occidentale (“Prime” Lewis, 1856) — Burch, 1975: 6.
= Sphaerium (Herringtonium) occidentale (Prime in Lewis, 1856) — Clarke, 1973: 149, pl. 16, fig. 4.
= Sphaerium occidentale Prime, 1860 — Herrington, 1962: 21, pl. 1, fig. 4.
= Sphærium occidentale Prime — Prime, 1895: 38.
= Sphærium occidentale Prime — Lewis, 1872: 109.
= Sphærium occidentale Prime — Prime, 1870: 156.
= Sphærium occidentale Prime — Prime, 1865: 41, fig. 34.
