Ref ID : 3653
Susana Serrano, Ana Martin-Gonzalez, and Dimas Fernandez-Galiano; Trimyema compressum Lackey, 1925: Morphology, Morphogenesis and Systematic Implications. J.Protozool. 35(2):315-320, 1988
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Trimyema compressum is a species included in the family Trimyemidae with the single genus Trimyema. This species has 50-60 somatic kineties and three rows of kinetosomes surrounding the oral cavity. Two isolated groups of kinetosomes can also be observed on the right side of the oral region. The morphogenesis of bipartition is telokinetal; all the new infraciliary structures of the opisthe come from the longitudinal and postero-anterior proliferation of the last kinetosome of all the somatic kineties. In the proter there is a reorganization of the oral infraciliature. As a result of our observations, we suggest that the systematic position of the genus Trimyema be changed from the subclass Vestibulifera to the subclass Gymnostomata. We also consider that this genus must be included in the suborder Trimyemina Jankowski, 1980.