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Data last updated
Thu 18 Dec 2025
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Bivalvia
| Sphaerioida
| Sphaerioidea
| Sphaeriidae
| Sphaeriinae
| Pisidium observationis
nominal species Pisidium observationis Pilsbry, 1911
Pilsbry, 1911. Rep. Princeton Univ. Exp. Patagonia 3(5): 608, fig. 19.
= Pisidium observationis Taxonomic Opinions= Pisidium observationis Pilsbry, 1911 — IUCN, 2011 = Pisidium observationis Pilsbry, 1911 — Bogan, 2010 = Pisidium observationis Pilsbry, 1911 — Rumi et al., 2008 + Pisidium magellanicum (Dall) — Ituarte, 2007 = Pisidium observationis (Pilsbry, 1911) — Simone, 2006
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