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Description of the new genus Hysterocinetoides (Ciliophora, Hysterocinetidae) and revision of the systematics of the subclass Hysterocinetia

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Two new species belonging to the new genus Hysterocinetoides are described after protargol staining. They were found in the intestine of worms of the genus Alma (Oligochaeta, Glossoscolecidae) from Cameroon. Their buccal apparatus and kinetosomal infraciliature are typically those of the family Hysterocinetidae. But the sucker has an inverted-U shape and is devoid of skeletal fibers and isolated segments of kineties. These characters justify the creation of the new genus. A review of the diversification of genera among the family Hysterocinetidae is followed by a revision of the systematics of the subclass Hysterocinetia.

Keywords: Ciliates; Hysterocinetoides; Oligohymenophora; Systematics

Document Type: Original Article


Affiliations: 1: University of Yaoundé I, Faculty of Science, Laboratory of General Biology, P.O. Box 812, Yaoundé, Cameroon 2: Université Blaise Pascal Clermont-Ferrand II, UPRES A CNRS 6023, Laboratoire de Biologie Comparée des Protistes, Les Cézeaux, 63177 Aubière Cedex, France

Publication date: 2002-04-01

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