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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Monochilum

Monochilum Schewiakoff, 1892 (ref. ID; 2014)

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

[ref. ID; 2014]
Medium to large ciliate (60-200 um long), elongate ovoid to ellipsoid in shape. Oral aperture lies in the anterior body half usually about a quarter of the cell length from the apical end; is oval in outline and leads to a conical buccal cavity. There is a prominent membranelle on the left of the oral aperture and an undulating membrane on its right. Contractile vacuole in posterior body half, usually close to the equator. Macronucleus ovoid, centrally located.
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. Monochilum blochmanni Lepsi, 1926 (ref. ID; 1622)
  2. Monochilum elongatum Mermod, 1914 (ref. ID; 1622)
  3. Monochilum frontatum Schewiakoff (ref. ID; 1308, 1618, 1622)
  4. Monochilum ovale Schewiakoff, 1893 (ref. ID; 1622)
  5. Monochilum tesselatum Penard, 1922 (ref. ID; 1622)

Monochilum frontatum Schewiakoff (ref. ID; 1308, 1618, 1622)

Descriptions

Anterior end broader; ventrally flattened, dorsally somewhat convex; macronucleus ellipsoid; a micronucleus; feeds on algae. (ref. ID; 1618)

Measurements

80 by 30 um. (ref. ID; 1618)