Heterocapsa cf. triquetra

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Taxonomic Group:Dinoflagellate
Trophic Status:Autotrophic
Size Range:10-12 μm wide x 15-16 μm long (LUMCON Guide); 9-18 μm wide x 16-30 μm long (Dodge 1982, Horner 2002)
Key Characteristics:Small cell with a rounded to conical epitheca with straight sides; hypotheca variably shaped, with an asymmetrical horn that is not always robust; thecate with no spines or ornamentation; girdle median and slightly excavated; one peripheral chloroplast and a large median pyrenoid
Confused With:The cells we count in this category differ from other published descriptions for H. triquetra, but there are some similarities
Toxin:None known