Keywords: Mitrella semiconvexa 001.jpg en Mitrella semiconvexa Lamarck 1822 ; familyColumbellidae 2016-05-08 17 00 52 https //commons wikimedia org/wiki/File Naturalis_Biodiversity_Center_-_ZMA MOLL 353898_-_Mitrella_semiconvexa_ Lamarck _1822 _-_Columbellidae_-_Mollusc_shell jpeg Naturalis Biodiversity Center other versions Custom license marker 2016 05 08 Naturalis donation CC-0 Mitrella semiconvexa Molluscs at Naturalis from the Zoölogisch Museum Amsterdam Media donated by Naturalis Biodiversity Center |