FIGURES 61–66. Rhoicosphenia kloseri, scanning electron microscope (SEM). Girdle view. 61–65. Size diminution series. On frustules of different length the number of more closely spaced striae at the poles is more or less equal (5–6), while the number of remaining striae vary from 3 (Fig. 61) to 15 (Fig. 65). 66. Frustules after vegetative division. Scale bars: Figs 61, 63, 64, 66 = 5 μm, Fig. 62 = 3 μm, Fig. 65 = 8 μm.

Published as part of Thomas, Evan W. & Ligowski, Ryszard, 2016, Rhoicosphenia kloseri, a new isopolar Rhoicosphenia (Bacillariophyta) species from the Antarctic with comparison to other isopolar Rhoicosphenia, pp. 50-58 in Phytotaxa 265 (1) on page 53, DOI: 10.11646/phytotaxa.265.1.4, http://zenodo.org/record/13670722