Chaetoceros subtilis
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Chaet_su1.jpg Chaet_su2.jpg dscn5053.jpg
Taxonomic Group: Diatom
Trophic Status: Autotrophic
Size Range: 4.0-12.5 μm wide (LUMCON Guide); 2-12 μm wide (Rines & Hargraves 1988); 2-14 μm wide (Horner 2002; Tomas 1997)
Key Characteristics: Short chains with tight fitting cells that touch; all setae directed toward end of colony; terminal setae slightly to much thicker and much longer than others; mucous producing; one or two chloroplasts
Confused With: Chaetoceros subtilis var. abnormis, which has only one terminal seta
Toxin: None known