Two new marine species of Cocconeis (Bacillariophyceae) from the west coast of Sweden Author Al-Handal, Adil Y. Author Riaux-Gobin, Catherine Author Jahn, Regine Author Wulff, Angela Katarina Author Minerovic, Alison text European Journal of Taxonomy 2019 2019-02-12 497 1 16 journal article 26967 10.5852/ejt.2019.497 445ce82a-c971-4b27-b2a0-f0717756e9e5 2651618 Cocconeis arenicola Riznyk emend. Al-Handal & Riaux-Gob. Figs 8–9 Emended description Valve elliptical with broadly rounded apices, 24.6 × 17.7–17.9 µm . SV with narrow and linear axial area (sternum) and small round central area. Striae radiate, equidistant, composed of large and round areolae, 9–9.8 in 10 µm . Areolae 16–18 in 10 µm . Short marginal striae of smaller areolae are present. RV with straight raphe, proximal raphe endings close to each other, distal endings terminate very shortly before apices. Striae radiate, equidistant with rounded areolae, 12–16 in 10 µm .