FIGURES 65–76 in New and rare diatom (Bacillariophyta) species from a mountain lake in Eastern Siberia

FIGURES 65–76: Fig. 65. Stauroneis crassula, LM. Fig. 66. Pinnularia semicruciata, LM. Figs 67–69. Gomphonema angusticephalum, LM. Figs 70, 71, 76. Naviculadicta mongolica. Figs 70, 71. LM. Fig. 76. SEM, internal valve view. Figs 72, 73. Pinnularia angustarea, LM. Fig. 74. Neidiopsis vekhovii, LM. Fig. 75. N. wulffii, LM. Scale bar = 10 µm.