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MUSSELpdb
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Unionidae
Margaritiferidae
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Species Richness & Endemism by Geography
Data last updated Mon 1 Dec 2025
publication summary
Marsh, W.A. 1891. Description of two new species of Unio, from Arkansas. Nautilus 5(1): 1-2. Available electronically.
Marsh, 1891. Nautilus 5(1): 1.Pilsbry, 1892. Proc. Acad. Nat. Sci. 44: 131, pl. 8, figs. 7-8.Pilsbry, 1893. Nautilus 7(1): pl. 1, figs. 7-8.Type(s): HOLOTYPE ANSP_41589, Little Red River, Ark.
Marsh, 1891. The Observer 2: ??.Marsh, 1891. Nautilus 5(1): 2.Type(s): LECTOTYPE ANSP_56480, Little Red River, Ark.
