Ciliophora
Suggested reading

Corliss J.O. 1979. The ciliated protozoa. Characterization, classification and guide to the literature (2nd ed.). Pergamon Press, Oxford, pp. 1-455.
—Excellent general introduction to ciliates, review of classification systems, characterizes higher-level taxa and lists all valid genera at that time.

Fenchel T. 1988. Marine plankton food chains. Ann. Rev. Ecol. Syst., 19:19-38.
—Summarizes the roles of ciliates in marine pelagic ecosystems.

Foissner W. 1991. Basic light and scanning electron microscopic methods for taxonomic studies of ciliated protozoa. European J. Protistol., 27:313-330.
—Detailed descriptions of many useful techniques for the taxonomic study of ciliates.

Hausmann K., Hülsmann N. 1996. Protozoology, 2nd ed. Thieme Verlag, Stuttgart, pp. 1-338.
—Excellent overview of protozoans (biochemistry, molecular biology, ultrastructure, morphology), profusely illustrated.

Kahl A. 1930. Urtiere oder Protozoa I: Wimpertiere oder Ciliata (Infusoria) 1. Allgemeiner Teil und Prostomata. Tierwelt Deutschlands, 18:1-180.
Kahl A. 1931. Urtiere oder Protozoa I: Wimpertiere oder Ciliata (Infusoria) 2. Holotricha außer den im 1. Teil behandelten Prostomata. Tierwelt Deutschlands, 21:181-398.
Kahl A. 1932. Urtiere oder Protozoa I: Wimpertiere oder Ciliata (Infusoria) 3. Spirotricha. Tierwelt Deutschlands, 25:399-650.
Kahl A. 1933. Ciliata libera et ectocommensalia. Tierwelt der Nord- und Ostsee, 23:29-146.
Kahl A. 1934. Suctoria. Tierwelt der Nord- und Ostsee, 26:184-226.
Kahl A. 1935. Urtiere oder Protozoa I: Wimpertiere oder Ciliata (Infusoria) 4. Peritricha und Chonotricha. Tierwelt Deutschlands, 30:651-886.
—This series of papers by Kahl includes comprehensive identification guides to many ciliate taxa (marine, freshwater and soil) based on life observations (no silver impregnation data; in German).

Laybourn-Parry J. 1992. Protozoan plankton ecology. Chapman and Hall, London, pp. 1-231.
—Excellent review on protozoan plankton ecology (also includes freshwater and other protozoan groups).

Lee J.J., Soldo A.T. 1992. Protocols in Protozoology. Society of Protozoology, Lawrence, Kansas.
—Collection of various methods for ecological, morphological and cytological studies of ciliates.

Pierce R.W., Turner J.T. 1992. Ecology of planktonic ciliates in marine food webs. Rev. Aquat. Sci., 6:139-181.
—Concise summary on ecology and some methodological aspects.

Puytorac P. de (ed.) 1994. Traité de Zoologie. Anatomie, Systématique, Biologie. II. Infusoires Ciliés. Masson, Paris, pp. 1-880.
—Excellent review of ciliate cytology, provides a classification scheme (in French).

Reid P.C., Turley C.M., Burkill P.H. 1991. Protozoa and their role in marine processes. NATO ASI Series, G 25:1-506.
—Session summaries providing short overviews of various aspects of work with Protozoa (methodology, ecology, taxonomy, etc.).

Small E.B., Lynn D.H. 1985. Phylum Ciliophora Doflein, 1901. In "An illustrated guide to the Protozoa" (J.J. Lee, S.H. Hutner, E.C. Bovee, eds.), Allen Press, Lawrence, Kansas, pp. 393-575.
—Ciliate classification with identification keys and examples of common genera.