Inversiunio yanagawensis (QUYK-06858) with "metal artifacts" noise due to the thick/hard shell.  
  Part of: Kano Y, Kurita Y, Kanno K, Saito K, Hayashi H, Onikura N, Yamasaki T (2019) Photo images, 3D/CT data and mtDNA of the freshwater mussels (Bivalvia: Unionidae) in the Kyushu and Ryukyu Islands, Japan, with SEM/EDS analysis of the shell. Biodiversity Data Journal 7: e32114.