Fig. 6 in A New Cleaning Method for Accurate Examination of Freshwater Gastropod Shell Specimens Covered with Iron-rich Deposits

Fig. 6. SEM observations of cross sections (A–F) and inner surfaces (G–J) of outer lips. A, Semisulcospira niponica before treatment; B, S. niponica after treatment with 12% sodium hypochlorite, KUZ Z3716; C, S. niponica after treatment with 20% ammonium thioglycolate, KUZ Z3722; D, G, S. reticulata before treatment; E, H, AP-opened S. reticulata after treatment with 12% sodium hypochlorite, KUZ Z3728; F, I, AP-closed S. reticulata after treatment with 20% ammonium thioglycolate, KUZ Z3734; J, AP-opened S. reticulata after treatment with 20% ammonium thioglycolate, KUZ Z3735. Scale bars: 100 µm (A–F), 10 µm (G–J). Abbreviations: CCL, calcium carbonate layer; PL, periostracum layer.