Figs 37–45 in Two new marine species of Cocconeis (Bacillariophyceae) from the west coast of Sweden

Figs 37–45. SEM images of C. vrangoensis Al-Handal & Riaux-Gob. sp. nov. (BGBM, slide B 40 0043105). 37–39. External RV side showing uniseriate striae on valve face and bi- to triseriate striae on valve margin, as well as variation in valve outline, arrow on Fig. 36 points to the marginal hyaline area. 40–42. Internal RV side showing submarginal rim and marginal areolae, arrow on Fig. 41 points to the folded mantle. 43. Areolae with radiate marginal perforations of the hymens (arrow). 44. Abvalvar side of the valvocopulae showing shape of fimbriae, with intervalary short fimbriae (arrow). 45. Enlarged part of the abvalvar side of the valvocopula with an oblong papillae (arrow).