Prostomatea
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.