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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Dichilum

Dichilum Schewiakoff, 1892 (ref. ID; 2014)

Class Oligohymenophora: Subclass Hymenostomata: Order Hymenostomatida (ref. ID; 2014)

[ref. ID; 2014]
Body-shape oblong-ovoid with both poles broadly rounded slightly wider anteriorly. Oral aperture in the anterior body third, oblong-oval in outline shape and lying parallel to the major body axis. Undulating membrane present on the right edge of the oral aperture and one membranelle visible on the left. Somatic ciliature complete and uniform. Pre-oral suture formed between the arch-like meeting of the ventral kineties. Trichocysts may be present. One contractile vacuole whose position varies with species. Macronucleus ovoid, centrally located with a single adjacent micronucleus.
Quote; Colin R. Curds, Michael A. Gates and David McL. Roberts "British and other freshwater ciliated protozoa Part II Ciliophora: Oligohymenophora and Polyhymenophora" Cambridge University Press, 1983 (ref. ID; 2014)
  1. Dichilum cuneiforma Schewiakoff, 1889 (ref. ID; 1308, 1622) reported year? (ref. ID; 1618)
  2. Dichilum intermedium Gajevskaja, 1927 (ref. ID; 1622)
  3. Dichilum platessoides Faure-Fremiet, 1924 (ref. ID; 1622)

Dichilum cuneiforme Schewiakoff, 1889 (ref. ID; 1308, 1622) reported year? (ref. ID; 1618)

Descriptions

Ellipsoid; cytostome about one-fifth the body length from anterior end; right membrane larger than left; small cytopharynx; macronucleus ellipsoid; in fresh water. (ref. ID; 1618)

Measurements

About 40 by 24 um. (ref. ID; 1618)