MAKE A MEME View Large Image Conchological Manual Figs 64-70.png Opercula of spiral univalves the operculum is a calcareous or horny piece closing the aperture Fig 64 multispiral; 65 paucispiral; 66 concentric; 67 articulated; 68 radiated; 69 lammellated; 70 ...
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Keywords: Conchological Manual Figs 64-70.png Opercula of spiral univalves the operculum is a calcareous or horny piece closing the aperture Fig 64 multispiral; 65 paucispiral; 66 concentric; 67 articulated; 68 radiated; 69 lammellated; 70 unguiculated gutenberg A Conchological Manual 43417 1842 George Brettingham Sowerby II 1812 “1884 PD-old-100 A conchological manual 1842
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