1. Monograph of the oxytrichidae (ciliophora, hypotrichia);Berger;Monogr. Biol.,1999
2. Monograph of the urostyloidea (ciliophora, hypotricha);Berger;Monogr. Biol.,2006
3. Some ciliates from Tortugas;Bullington;Pap. Tortugas Lab.,1940
4. The morphology of three marine heterotrichous ciliates, Condylostentor auriculatus (Kahl, 1932) Jankowski, 1978, Condylostoma minutum Bullington, 1940 and C. spatiosum Ozaki and Yagiu in Yagiu, 1944 (Ciliophora: Heterotrichida);Chen;Acta Protozool.,2007
5. The Ciliated Protozoa. Characterization, Classification and Guide to the Literature;Corliss,1979