Taxonomic Group: | Diatom |
Trophic Status: | Autotrophic |
Size Range: | 12.5-22.5 μm wide (LUMCON Guide); 9-18 μm wide (Cupp 1943) |
Key Characteristics: | Upper valve with deep depression in the center or smoothly concave; lower valve with projecting corners and with long setae, emerging well inside valve margin proceeding outwards almost at right angles to pervalvar axis then curving downwards; many small chloroplasts, found far out into the setae |
Confused With: | Chaetoceros peruvianus, which has setae of upper valve arising from near center |
Toxin: | None known |
Display2018-01-05T09:42:10+00:00