FIGURES 45–51 in Cocconeis kurakakea, a new diatom species from Nukutavake (Tuamotu Archipelago, South Pacific): description and comparison with C. diruptoides and C. pseudodiruptoides

FIGURES 45–51. SEM micrographs of Cocconeis pseudodiruptoides Foged: Nukutavake (sample NTV A1). Figs 45–46. SV external views with narrow fascia up to the margins and sigmoid sternum. Fig. 47. Detail of the complex loculi in external view. Fig. 48. Detail of the complex loculi in internal view. Fig. 49. SV internal view with sigmoid sternum and one marginal areola on one side of the fascia (arrowhead). Fig. 50. Internal view of the RV with strongly sigmoid raphe, and a narrow fascia, slightly oblique, reaching the margins (arrowhead), note the large areolae in quincunx on the entire valve. Fig. 51. Open SVVC with short fimbriae (arrowhead). Scale bars = 7 μm (51), 5 μm (45), 4 μm (46), 3 μm (49–50), 700 nm (47–48).