Prostomatea is a class of ciliates.

[2] It includes the genera Coleps[3] and Pelagothrix.

Zhang, Qianqian; Yi, Zhenzhen; Fan, Xinpeng; Warren, Alan (January 2014).

"Further insights into the phylogeny of two ciliate classes Nassophorea and Prostomatea (Protista, Ciliophora)".

Molecular Phylogenetics and Evolution.