Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Pisidium dubium

nominal species Cyclas (Phymesoda) equalis Rafinesque, 1820

= Pisidium dubium

Taxonomic Opinions

+ Pisidium dubium (Say, 1817) — Jihad, 2023

+ Pisidium (s.s.) dubium (Say, 1816) — Mackie, 2007

+ Pisidium (s.s.) dubium (Say, 1816) — Burch, 1975

+ Pisidium dubium (Say, 1816) — Herrington, 1962

+ Pisidium virginica Bourguignat — Prime, 1870

+ Pisidium virginicum Bourguignat — Prime, 1865

= Pisidium equale Rafinesque — Prime, 1852

= Cyclas æqualis [sic] Raf. — Ferussac, 1835

= Cyclas (Phymesoda) equalis — Rafinesque, 1820