Taxonomic Group: | Diatom |
Trophic Status: | Autotrophic |
Size Range: | 9.5-12.5 μm wide (LUMCON Guide); 16-32 μm wide (Cupp 1943); 10-32 μm wide (Tomas 1997) |
Key Characteristics: | Setae of upper valve arising from near center, turning sharply and running backward in more or less wide outwardly convex curves after short basal region; setae of lower valve originating inside valve margin more nearly parallel to chain axis than those of upper valve; setae with strong spines; many small chloroplasts, found far out into the setae |
Confused With: | Chaetoceros pendulus, which has setae on upper valve arising more from the corners than from near center |
Toxin: | None known |
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