FIGURES 195–198. Chaetoceros bacteriastroides field material. Figs 195–196 in The planktonic diatom genus Chaetoceros Ehrenberg (Bacillariophyta) from the Adriatic Sea

FIGURES 195–198. Chaetoceros bacteriastroides field material. Figs 195–196: LM. Figs 197–198: SEM. 195) Complete chain showing orientation of the setae. Arrow shows the reduced undulated setae. 196) Terminal part of the chain with cells containing numerous chloroplasts and coiled setae (arrow). 197) Sibling valves in girdle view showing two pairs of reduced coiled setae and two fused parts of common intercalary setae. Arrow points to the shoehorn shaped outgrowth on the valve edge. 198) Detail of the intercalary common setae with small spines (arrowhead) and spirally undulated setae with T-shaped spines (arrow). Scale bars: 195=20 μm; 196=10 μm; 197=5 μm; 198=1 μm.