FIGURES 36–39 in Cocconeis kurakakea, a new diatom species from Nukutavake (Tuamotu Archipelago, South Pacific): description and comparison with C. diruptoides and C. pseudodiruptoides

FIGURES 36–39. SEM micrographs of Cocconeis kurakakea: the type population on Nukutavake (sample NTV A1), SV internal views. Fig. 36. Entire valve with sigmoid raphe. Fig. 37. Detail of the central area with an asymmetric short fascia (arrowhead). Fig. 38. Details of an apex, with bent terminal raphe ending and smooth edge of the RVVC (arrowhead). Fig. 39. Round small RV areolae with short slits (arrowhead). Scale bars = 2 μm (36), 1 μm (37–38), 600 nm (39).