FIGURES 18–34 in Ten new Bacillariophyta species from James Ross Island and the South Shetland Islands (Maritime Antarctic Region)

FIGURES 18–34. Chamaepinnularia elliptica sp. nov. Most LM and part of the SEM pictures taken from the holotype population (sample JRI-D02) from James Ross Island. 18–27. Light microscopy observations. 28–30. LM views of valves from South Shetland Islands. 31. SEM of an entire valve, external view (picture taken from Livingston Island, sample BY040). 32. SEM of an entire valve, external view. 33. SEM of an entire valve, internal view (picture taken from Livingston Island, sample BY040). 34. SEM of an entire valve, internal view. Scale bar represents 10 μm except for fig. 34 where scale bar = 1 μm.