thank you very much for your answer, no the classification is very known I mean keys... morphological keys to identify this organisms under microscope.
For identification, unfortunately the necessary information is widely scattered in a wide variety of journals and books.
Good resources include:
1) Foissner W., Agatha S., Berger H. (2002): Soil ciliates (Protozoa, Cilio- phora) from Namibia (Southwest Africa), with emphasis on two contrast- ing environments, the Etosha region and the Namib desert. Part I: Text and line drawings. – Denisia 5: 1–1063.
Foissner W., Agatha S., Berger H. (2002): Soil ciliates (Protozoa, Cilio- phora) from Namibia (Southwest Africa), with emphasis on two contrast- ing environments, the Etosha region and the Namib desert. Part II: Photographs. – Denisia 5: 1064–1459.
2) Foissner W., Berger H. (1996): A user-friendly guide to the ciliates (Protozoa, Ciliophora) commonly used by hydrobiologists as bioindicators in rivers, lakes, and waste waters, with notes on their ecology. – Freshwat. Biol. 35: 375–482.
3) Foissner W., Berger H., Blatterer H., Kohmann F. (1995): Taxonomische und ökologische Revision der Ciliaten des Saprobiensystems - Band IV: Gymnostomatea, Loxodes, Suctoria. – Informationsberichte des Bayer. Landesamtes für Wasserwirtschaft 1/95: 1–540.
4) Foissner, W., Berger, H., Kohmann, F., (1992). Taxonomische und ökologische Revision der Ciliaten des Saprobiensystems. Band II: Petrichia, Heterotrichida, Odontostomatida. Informationsberichte des Bayer. Landesamtes fur Wasserwirtschaft Heft 5/92.5)
5) Foissner, W., Berger, H., Kohmann, F., (1991). Taxonomische und ökologische Revision der Ciliaten des Saprobiensystems. Band I: Cyrtophorida, Oligotrichida, Hypotrichia, Colpodea. Informationsberichte des Bayer. Landesamtes fur Wasserwirtschaft Heft 1/91: 1–467.
6) Foissner, W., Berger, H., Kohmann, F., (1994). Taxonomische und ökologische Revision der Ciliaten des Saprobiensystems. Band III: Hymenostomata, Prostomatida, Nassulida. Informationsberichte des Bayer. Landesamtes fur Wasserwirtschaft Heft 1/94: 1–543.
7) Foissner W., Berger H., Schaumburg J. (1999): Identification and ecology of limnetic plankton ciliates. – Informationsberichte des Bayer. Lande- samtes für Wasserwirtschaft 3/99: 1–793.
8) Berger H. (2006): Monograph of the Urostyloidea (Ciliophora, Hypotricha). – Monographiae biol. 85: i–xvi & 1–1303.
9) Berger H. (2008): Monograph of the Amphisiellidae and Trachelostylidae (Ciliophora, Hypotricha). – Monographiae biol. 88: i–xv & 1–737.
10) Berger H. (2011): Monograph of the Gonostomatidae and Kahliellidae (Ciliophora, Hypotricha). – Monographiae biol. 90: i–xi & 1–741.
11) Berger H. (1999): Monograph of the Oxytrichidae (Ciliophora, Hypotricha). – Monographiae biol. 85: i–xi & 1–1080
12) Foissner, W., 1993. Colpodea (Ciliophora). Protozoenfauna 4, 1–798.
13) Jankowski, A.W., (2007). [Phylum Ciliophora Doflein, 1901], in: Alimov, A.F. (Ed.), Protista. Part 2, Handbook on Zoology. Russian Academy of Sciences, Zoological Institute, St. Petersburg, pp. 371–993.
14) Foissner, W., Xu, K.,( 2007). Monograph of the Spathidiida (Ciliophora, Haptoria). Vol. I: Protospathidiidae, Arcuospathidiidae, Apertospathulidae. Monogr. Biol. 81, 1–485.
15) Vd’ačný, P., Foissner, W., (2012). Monograph of the Dileptids ( Protista , Ciliophora , Rhynchostomatia ). Denisia 31, 1–529.
Dichotomous and, in some cases, illustrated keys are included in references 2–12 and 15.