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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Penardiella

Penardiella Kahl, 1930 (ref. ID; 2013)

Class Kinetofragminophora: Subclass Gymnostomata: Order Haptorida: Family Spathidiidae (ref. ID; 2013)

[ref. ID; 2013]
Body outline shape oval, laterally flattened. Anterior region slightly truncated. Prominent unciliated ridge travels around complete body edges (but sometimes does not extend completely up the dorsal edge) but never spirals around the body. Oral aperture situated towards dorsal edge on apical part of ridge, supported by trichites. Trichocysts line the body ridge. Cilia uniformly distributed over cell. Macronucleus elongate, ribbon-like or ovoid. Single terminal contractile vacuole. Genus erected by Kahl (1930) for Legendrea interrupta Penard, 1922 and Legendrea crassa Penard, 1922.
Quote; Colin R. Curds "British and other freshwater ciliated protozoa Part I Ciliophora: Kinetofragminophora" Cambridge University Press, 1982 (ref. ID; 2013)
  1. Penardiella crassa Penard, 1922 (ref. ID; 1619, 3540) reported year? (ref. ID; 1618)
  2. Penardiella interrupta Penard, 1922 (ref. ID; 1619, 3540)
  3. Penardiella undulata Kahl, 1930 (ref. ID; 1335, 1619, 3540)

Penardiella crassa Penard, 1922 (ref. ID; 1619, 3540) reported year? (ref. ID; 1618)

Descriptions

Elongate ellipsoid, flattened; trichocysts in posterior portion of girdle are longer and those in the dorsal region are fewer in number and shorter; macronucleus sausage-form; contractile vacuole posterior, in front of the girdle; sapropelic. (ref. ID; 1618)

Measurements

Body 160 by 50 um. (ref. ID; 1618)