Traits taxon details
original description
(of Ptychotrema (Parennea) pervagatum van Bruggen, 1989) Bruggen, A. C. van. (1989). Studies on <i>Parennea</i> (Mollusca, Gastropoda Pulmonata: Streptaxidae) additional to the revision by Adam & Van Goethem, 1978. <em>Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen.</em> 92(1): 1–56. page(s): 14, figs 13-19, 41-44. [details]
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