Two genera of North American freshwater snails: <I>Marstonia</I> Baker, 1926, resurrected to generic status, and <I>Flordobia</I>, new Genus (Prosobranchia: Hydrobiidae: Nymphophillinae)
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Two genera of North American freshwater snails: Marstonia Baker, 1926, resurrected to generic status, and Flordobia, new Genus (Prosobranchia: Hydrobiidae: Nymphophillinae)