Cells of A. spinosum are elliptical, slightly elongated, and dorso-ventrally compressed. The conical episome with ... [details]
Biflagellate vegetative cells are photosynthetic with one chloroplast. The plate tabulation is: APC, 4', 3a, 6'', ... [details]
Producer of azaspiracids, a group of lipophilic toxins associated with human shellfish poisoning [details]