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Data last updated
Mon 1 Dec 2025
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Bivalvia
| Sphaerioida
| Sphaerioidea
| Sphaeriidae
| Sphaeriinae
| Sphaerium transversum
nominal species Cyclas constricta Prime, 1853
‘Anthony’ Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 274.
= Sphaerium transversum Taxonomic Opinions+ Musculium transversum (Say, 1829) — Mackie, 2007 + Musculium transversum (Say, 1829) — Burch, 1975 + Sphærium transversum Say — Prime, 1895 + Sphærium transversum Say — Prime, 1870 + Sphærium transversum Say — Prime, 1865 = Cyclas constricta Anthony — Prime, 1853
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