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Class: GASTROPODA
--- Taxon Tree: CAENOGASTROPODA [Subclass]
------ Family: SPANIONEMATIDAE Golikov & Starobogatov, 1987 † (Sea) (FOSSIL)
DB counters: Genus=1, Subgenus=0, Species=2, Subspecies=0 ( 0 Species and 0 Subspecies have images)
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Genus: Spanionema Whidborne, 1891 † (DB: 2 SP, 0 IMG)
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