Fig. 26

Cotylurus cornutus cercariae, internal musculature. a: frontal optical slice through the trunk; b: Z-stack of oblique longitudinal optical slices in the region of anterior organ; c: scheme illustrating the arrangement of dorsoventral and additonal internal musculature (dorsal view); d: Z-stack of frontal optical slices, dorsally to the ventral sucker; e: Z-stack of few frontal optical slices close to the dorsal surface of the ventral sucker. Roman numerals mark the additional internal muscle bundles. ao – anterior organ; dvm – dorsoventral muscle fibers; ph – pharynx; vs – ventral sucker. Scale bars 10 μm