[Rostellar glands in two cestodes of the family Dilepididae].

Fine structure of rostellar glands has been studied in two cestode species different from one another by the level of rostellum development. Secretion of the rostellar glands and rostellar sheath of Dichoanotaenia clavigera are characterized by different morphology, as well as different sites and ways of secretion. In Platyscolex ciliata morphological differences of the secretion of the rostellar sheath gland in the sites of synthesis and excretion were revealed. Possible causes of the morphologically different types of secretion in the rostellar glands of cestodes are discussed.