[Systematic position of the trematode, Faustula keksooni (MacCallum, 1918)].

The concept of the exceptional peculiarity of the genital system structure of Faustula keksooni (MacCallum, 1918), on the basis of which this trematode was accorded a distinct status of the order Faustulata, is considered as erroneous one. The literary data on the reexamination of the holotype are given. The status of the parasite in the family Fellodistomidae is discussed.