FIGURES 1–25 in Three new araphid diatoms (Bacillariophyta) from the Maritime Antarctic Region

FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm.