Fig. 30

Neophasis lageniformis metacercariae, internal musculature. a: scheme illustrating the arrangement of additonal internal muscle bundles (left – dorsal view; right – ventral view), bilaterally symmetrical groups are shown only on one side; b: Z-stack of few frontal optical slices close to the dorsal surface of the oral sucker; c: Z-stack of sagittal optical slices of the preacetabular region; d: Z-stack of oblique optical slices of the preacetabular region. Roman numerals mark the additional internal muscle bundles. c – caecum; dvm – dorsoventral muscle fibers; eb – excretory bladder; os – oral sucker; ph – pharynx; vs – ventral sucker. Scale bars 10 μm