Sphaerocystis schroeterii is a species of . They are native to Espirito Santo, Pernambuco, Amazônia, Rio De Janeiro, Maranhao, SãO Paulo, Paraná, and Pará.
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).