REVISION OF OF THE SUBFAMILY OF METARACOELOPHRYINAE DE PUYTORAC 1972 (OLIGOHYMENOPHORA: HOPLYTOPHRYIDA: HOPLYTOPHRYIDAE), ASTOMES CILIATES OF THE DIGESTIVE TRACT OF OLIGOCHAETA WORMS OF AFRICA: DESCRIPTION OF FIVE NEW SPECIES

REVISION OF OF THE SUBFAMILY OF METARACOELOPHRYINAE DE PUYTORAC 1972 (OLIGOHYMENOPHORA: HOPLYTOPHRYIDA: HOPLYTOPHRYIDAE), ASTOMES CILIATES OF THE DIGESTIVE TRACT OF OLIGOCHAETA WORMS OF AFRICA: DESCRIPTION OF FIVE NEW SPECIES Five new species belonging to the astome ciliates, living in the digestive tract of Oligochaeta worms belonging to the genus Alma from Cameroon, have been described. The techniques used are: vital staining, staining of the nucleus with Diamidino Phenyl Indol (DAPI), scanning electron microscopy and silver staining method (Fernandez Galiano, 1976, 1994). This work confirms the presence of the genus Paracoelophrya and Dicoelophrya in the digestive track of the oligochaete Alma from Gabon and Cameroon; it helps to understand the general taxonomy of this Metaracoelophryinae subfamily. Moreover, the homogeneity of this group is confirmed and the phylogenetic relationship inside the Hoplitophryida order need more studies to be solved.