Plate P6. 1. Bacteriastrum hyalinum Lander and Chaetoceros lasinosus Schütt, Sample 172-1063D-2H-5, 28-29 cm, >25. 2, 3. B. hyalinum Lander, (2) Sample 172-1063D-2H-5, 58-59 cm, >25; (3) Sample 172-1061A-1H-CC, >20. 4. Chaetoceros diadema (Ehrenberg) Gran, Sample 172-1063D-4H-4, 53-54 cm, st. 5, 6. Chaetoceros lasinosus Schütt, Sample 172-1063D-2H-2, 23-24 cm, >25. 7. Chaetoceros mitra (Bailey) Cleve, Sample 172-1063D-2H-2, 23-24 cm, >25. Scale bars = 10 µm. Click on image for close-up.