FIGURES 33–36 in Ninastrelnikovia lateritica sp. nov., a new and rare freshwater diatom species from the rocky pools of the Western Ghats, India with a note on the genus Ninastrelnikovia Lange-Bertalot & A.Fuhrmann (Bacillariophyta)

FIGURES 33–36. Close up of internal valves of Ninastrelnikovia lateritica sp. nov. (SEM). 33. Proximal raphe ends strongly deflected onto the same side and internally open areolae. 34 & 35. Distal raphe end ending in helictoglossae. 36. Straight or rudimentarily developed proximal raphe end found in a intermediate valve which attached with another valve by interdigitating, long spatulate spines (arrows). (All scale bars represent 1 μm).