Genus: Dinophysis | Dinoflagellate

Order: Dinophysiales
Family: Dinophysiaceae

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Description: Armored, laterally flattened, oval-shaped cells with small flat or rounded epitheca.  Hypotheca is usually about ¾ of the cell length. Wide girdle bounded by lists. Chloroplasts present or absent.

Cell Size: Width = 30-60um, Length = 22-105um

Distribution: Widespread throughout the world's oceans.

Interesting Facts: Produces toxins.

Monterey Bay Species: D. acuminata, D. fortii, D. tripos,  D. rotundata, D. caudata.