Fig. 8. Gyrodactylus olsoni on the gill filament of longjaw mudsucker, SEM. a - general view, b - attachment organ, c - anchors and marginal hooks of the attachment organ, d - penetration of anchors into epithelial tissue.Gyrodactylus olsoni (Monogenea)

a - general view.

b - attachment organ.

c - anchors and marginal hooks of the attachment organ.

d - penetration of anchors into epithelial tissue.