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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 7673

Wilhelm Foissner, Hans Adam, and Ilse Foissner; [Morphologie und Infraciliatur von Bryometopus pseudochilodon Kahl, 1932, Balantidioides dragescoi Nov. Spec. und Kahliella marina Nov. Spec. und Revision des Genus Balantidioides Penard, 1930 (Protozoa, Ciliophora)]. Protistologica XVIII(2):211-225, 1982

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The morphology, infraciliature, and silverline system of Bryometopus pseudochilodon Kahl, 1932, Balantidioides dragescoi nov. spec., and Kahliella marina nov. spec. are described. B. dragescoi and K. marina are biometrically characterized, and the morphogenesis of K. marina is described. B. pseudochilodon is a typical heterotrichous ciliate. B. dragescoi differs from the other species of this genus, which is revised, by its single contractile vacuole, 2 micronuclei, and the irregularly distributed cilia at the left side of the body. We recognize 4 species: B. muscicola (Penard, 1922), B. bivacuolata Kahl, 1932, B. corbifera nov. comb. (Fryd-Versavel and Tuffrau, 1978), and B. dragescoi nov. spec. The genus Transitella Gellert, 1950 and T. lichenicola Gellert, 1950 are suppreseed and synonymized with Balantidioides bivacuolata Kahl, 1932. Thus, the family Transitellidae Fryd-Versavel and Tuffrau, 1978 is invalid because Kahl (1932) raised the family Reichenowellidae which includes the genera Reichenowella and Balantidioides. K. marina differs from the other species of this genus by many macronucleus-fragments, a roof-like structure which covers the posterior part of the adoral zone of membranelles, and a "systeme secant" in the frontal part of the ventral ciliature. Its morphogenesis is similar to that described in Kahliella acrobates. The systematic position of the genera Kahliella and Paraurostyla is discussed.