FIGURES 70–72 in New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah

FIGURES 70–72. SEM. Naviculonema stagnora. External valve views of two specimens. Fig. 70, Full external valve with distal raphe ends deflected in the same direction and irregularly-shaped central area. Fig. 71, C-shaped, occluded areolae. Fig 72, Straight proximal raphe ends and an isolated areola at the central area. Scale bars: Fig. 70: 5 µm; Figs 71–72: 1 µm.