Traits taxon details
original description
Itoigawa, J. & H. Nishimoto, 1984. Fossil Rissoidae and Rissoinidae (Gastropoda) of the Miocene Mizunami Group, Central Japan. Bulletin of the Mizunami Fossil Museum 11: 21-38, plates 6-12 page(s): 28-29; plate 8, figs 1a-1e; plate 9, figs 1a-1e, 2a-2b [details]
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