Bivalvia | Sphaerioida | Sphaeriidae | Sphaeriinae | Pisidium dubium nominal species Cyclas abruptum Haldeman, 1841
Haldeman, 1841, Proc. Acad. Nat. Sci. 1: ??.
= Pisidium dubium Taxonomic Opinions
+ Pisidium (s.s.) dubium (Say, 1816) — Burch, 1975
+ Pisidium dubium (Say, 1816) — Herrington, 1962
+ Pisidium virginica Bourguignat — Prime, 1870
+ Pisidium virginicum Bourguignat — Prime, 1865
= Pisum abruptum Haldeman, 1841 — Deshayes, 1854
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