FIGURES 136–156 in Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region)

FIGURES 136–156. Sellaphora antarctica sp. nov. LM and part of the SEM pictures taken from the holotype population (sample BYM051) from Livingston Island (South Shetland Islands). 136–153. LM views of 18 valves from the type population. Figs 152–153 represent girdle view. 154. SEM of an entire valve, external view (picture taken from James Ross Island, sample JRI-004). 155. SEM of the valve exterior, showing the mantle and girdle. 156. SEM of an entire valve, internal view (picture taken from James Ross Island, sample JRI-11). Arrow indicates the shallow depression present at each apex. Scale bar represents 10 μm except for fig. 154 where scale bar = 5 μm and figs 155 and 156 where scale bar = 2 μm.