Trichodina gangetica     (Ciliata)
Organism information awaits expert curation
Class: Oligohymenophorea

Bell shaped to hemispherical in form and circular in outline with a diameter 40.8-52.7 µm. Cytostome ventral and slightly anterior to mid body level. The cytostome and cytopharynx lie at the terminal end of a moderately deep and inclined vestibulum. As viewed from the anterior pole, the adoral ciliary spiral is a complex of two parallel rows of closely set cilia fused for some distance. The marginal cilia or anterior circlet are short, fine, loosely spaced; cilia 3.4-5.1 µm in length. The middle circlet is a series of overlapping membranelles. Velum is lacking. Most externally there is a fine pellicle covering the disc. The macronucleus is large, horse-shoe or arch shaped, 25.8-34.0 µm in diameter and lies just above the adhesive disc. The micronucleus lies close to the outer curvature at the termination of the right arm of the macronucleus. The contractile vacuole is excentrically situated and located just anterior to the left arm of the macronucleus.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• West Bengal, Hugli Estuary INDIA

Literature Source(s)
  • Jamadar, YA and Choudhury, A (1990) Ciliates of some marine and estuarine molluscs from Indian coastal region Technical Monograph ZSI, Calcutta 12 p 79 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2012-02-08

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