MolluscaBase taxon details
original description
(of Cyrena gibbosula J. Morris, 1856 †) Forbes, E. (1856). On the Tertiary Fluvio-marine Formation of the Isle of Wight Longman, Brown, Green, and Longmans, London, 162 pp., available online at https://books.google.at/books?id=YibPAAAAMAAJ&printsec=frontcover&hl=de&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false page(s): 156, pl. 6, fig. 13, 13a, 13b [details]
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