FIGURES 2–55 in Aulacoseira huguang sp. nov., a new Lateglacial fossil diatom from South China

FIGURES 2–55. LM images of Aulacoseira huguang sp. nov., taken from the holotype population (sample HGY-A5-189) under bright field and DIC (except for Figs 10–11, taken under phase contrast). 2–25. Valve views, each specimen is seen under two different focus plans. 26–31. Girdle views of single valves showing the range in mantle height. 32–51. Girdle views of complete frustules, each specimen seen under two or three different focus plans. 54–55. Short chain composed of two frustules in girdle view. Scale bar = 5 µm. Figs 45–47 correspond to the holotype specimen.