Dysteria spp. is generally ovoid in
shape with a flattened ventral surface from which the cilia extend. The
dorsal surface is dome-shaped, ribbed longitudinally, and unciliated.
A large podite is placed posteriorly. Typically, the right lateral edge of
each cell has a cleft. This
genus has a large, central macronucleus and two contractile vacuoles (Carey,
In the Indian River Lagoon, Dysteria spp. is
commonly found on seagrass blades.
Report by: K. Hill,
Smithsonian Marine Station
Submit additional information, photos or comments to:
Page last updated: March 3, 2003