Ciliates are a group of complex single-cell organisms that have hair-like structures called cilia that they use for movement or feeding.
Ceratium furca have two horns of different lengths on their lower half and one horn on their top half.
Pleurosigma species have two or four long and ribbon-like chloroplasts that run along their entire length.
Stephanopyxis species are formed in chains of cells that are full of little round chloroplasts.
Ceratium tripos long, skinny horns on their lower half that fold over to be almost parallel with their top horn.
Anabaena species are formed in chains twisted in tight coils resembling a slinky.
