Balantidium is a genus of ciliates. It contains the parasitic species Balantidium coli, the only known cause of balantidiasis.[2]

Balantidium trophB.JPG
Balantidium coli trophozoite
Scientific classification

Claparède & Lachmann 1858[1]
Type species
Balantidium entozoon[1]
  • Balantidiopsis Bütschli, 1889
  • Balantioides Alexeieff, 1931
  • Bolantidium
  • Parabursaria Ghosh, 1921
  • Paranyctotherus Sandon, 1941


The first-described species of Balantidium, B. entozoon, was described in 1838 by Ehrenberg as a member of the genus Bursaria. In 1858, Edouard Claparède and Johannes Lachmann created the genus Balantidium, and reclassified B. entozoon as its type species.[3]


Transcriptome data for Balantidium ctenopharyngodoni, from single-cell transcriptome sequencing, were published in 2017 and were the first omics data within the subclass Trichostomatia.[4]


There are 72 species in the genus.[5]


  1. ^ a b Aescht, E. (2001) Denisia 01: Catalogue of the Generic Names of Ciliates (Protozoa, Ciliophora)
  2. ^ "The Parasite: Balantidium coli". Retrieved 20 December 2015.
  3. ^ Grim, J. Norman; Buonanno, Federico (2009). "A re-description of the ciliate genus and type species, Balantidium entozoon". European Journal of Protistology. 45 (3): 174. doi:10.1016/j.ejop.2008.10.001. PMID 19251405.
  4. ^ Sun, Zongyi; Jiang, Chuanqi; Feng, Jinmei; Yang, Wentao; Li, Ming; Miao, Wei (2017). "Phylogenomic analysis of Balantidium ctenopharyngodoni (Ciliophora, Litostomatea) based on single-cell transcriptome sequencing". Parasite. 24: 43. doi:10.1051/parasite/2017043. PMC 5684829.  
  5. ^ Roskov Y.; Abucay L.; Orrell T.; Nicolson D.; Kunze T.; Culham A.; Bailly N.; Kirk P.; Bourgoin T.; DeWalt R.E.; Decock W.; De Wever A (eds.). "Catalogue of Life - 2015 Annual Checklist". Retrieved 20 December 2015.
  6. ^ Zhao, Weishan; Li, Can; Zhang, Dong; Wang, Runqiu; Zheng, Yingzhen; Zou, Hong; Li, Wenxiang; Wu, Shangong; Wang, Guitang; Li, Ming (2018). "Balantidium grimi n. sp. (Ciliophora, Litostomatea), a new species inhabiting the rectum of the frog Quasipaa spinosa from Lishui, China". Parasite. 25: 29. doi:10.1051/parasite/2018031. ISSN 1776-1042. PMC 5971665.