FIGURES 81–91 in Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region)

FIGURES 81–91. Muelleria pimpireviana sp. nov. LM & SEM pictures taken from the holotype population (sample NI26) from Nelson Island (South Shetland Islands). 81–89. LM views of 9 valves from the type population. 90. SEM of the valve exterior. 91. SEM detail of the apex, showing the bifurcated distal raphe endings. Scale bar represents 10 μm except for fig. 91 where scale bar = 2 μm.