Ref ID : 4751
Helmut Berger and Wilhelm Foissner; The Morphogenesis of Kahliella franzi (Foissner, 1982) nov. comb. and Oxytricha gigantea Horvath, 1933 (Ciliophora, Hypotrichida). Arch.Protistenk 136:65-77, 1988
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The morphogenesis of Kahliella franzi (Foissner, 1982) nov. comb. (for Gonostomum franzi Foissner, 1982) and Oxytricha gigantea Horvath, 1933 is described. Some characters (arrangement of the fronto-ventral cirral rows, origin of the cirral rows from 5 streaks, absence of transverse and caudal cirri) suggest that G. franzi should be transferred to the genus Kahliella. It can be easily separated by the number of macronuclear segments and marginal rows from the other species of this genus. The morphogenesis of Oxytricha gigantea proceeds in a very similar way to that of other species of the genus, indicating that morphogenetic characters alone are not sufficient for species separation.