Keywords: Phrontis polygonata 001.jpg en Phrontis polygonata Lamarck 1822 ; family Nassariidae 2016-05-20 16 36 58 https //commons wikimedia org/wiki/File Naturalis_Biodiversity_Center_-_ZMA MOLL 98106_-_Nassarius_polygonatus_ Lamarck _1822 _-_Nassariidae_-_Mollusc_shell jpeg Naturalis Biodiversity Center other versions Custom license marker 2016 05 20 Naturalis donation CC-0 Phrontis polygonata Media donated by Naturalis Biodiversity Center Molluscs at Naturalis from the Zoölogisch Museum Amsterdam |