Amphisolenia bidentata is a species of Dinophyceae in the family Amphisoleniaceae. They are native to SãO Paulo, Paraná, Rio Grande Do Sul, Bahia, Ceará, Rio De Janeiro, Santa Catarina, and Espirito Santo.
Definition: Living in the fluid medium (water or air) but unable to maintain their position or distribution independently of the movement of the water/air mass (adapted from Lincoln et al., 1998).