FIGURES 102–107. Oricymba voronkinae sp. nov. SEM, external views. 102, 103. Low magnification valve views showing arched raphe and round stigma opening. 104, 105. Central area with dilated proximal raphe ends and round stigma opening. Marginal ridge is evident. 106. View of striae with the overlay of silica to form the characteristic striae with subtending dendritic coverings. The marginal ridge is evident. 107. Apex with strongly hooked distal raphe end not bisecting the apical pore field. Pore field restricted to mantle. Scale bars = 10 μm in Figs 102, 103; 1 μm in Fig. 104; 2 μm in Fig. 105; 0.5 μm in Figs 106, 107.

Published as part of Kulikovskiy, Maxim, Glushchenko, Anton & Kociolek, John Patrick, 2015, The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement, pp. 120-134 in Phytotaxa 227 (2) on page 129, DOI: 10.11646/phytotaxa.227.2.2, http://zenodo.org/record/13635284