FIGURES 181–186 in The biogeographic distribution of Cavinula (Bacillariophyceae) in North America with the descriptions of two new species

FIGURES 181–186. LM micrographs of Cavinula kernii Cvetkoska, Hamilton, Levkov & Potapova sp. nov. Figs 187–192. SEM micrographs of Cavinula kernii Cvetkoska, Hamilton, Levkov & Potapova. Figs 187–190. External valve view. Figs 191, 192. Internal valve view. Figs 181–192. Kernville, California, USA. LM Scale bar: 10 µm in Figs 181–186. SEM Scale bars: 5µm in Fig. 191; 2 µm in Figs 187–190, 192. Fig. 185 = holotype.