Ceratium pentagonum
Click on image to view photo information.
dscn2833.jpg dscn2845.jpg dscn2815.jpg
Taxonomic Group: Dinoflagellate
Trophic Status: Autotrophic
Size Range: N/A
Key Characteristics: Body pentagonal with straight sides to epitheca and abruptly forming straight apical horn that can be long or short; body wider than or equal to its length; posterior horns very short, less than length of hypocone body; surface with raised ornamentation
Confused With: Ceratium hircus, which has two even hypothecal horns; Ceratium furca, which is more robust and has two uneven serrated hypothecal horns; Ceratium cf. lineatum, which is more delicate, and has a triangular epitheca that sharply transitions into a fairly long apical horn
Toxin: None known