Orthocoelium parvipapillatum
Fig. 1 : Whole worm, dorsal view
Fig. 2 : Acetabulum, median sagittal section
Fig. 3 : Pharynx showing lip sphincter, slightly lateral sagittal section
Fig. 4 : Pharynx and oesophageal bulb, median sagittal section
Fig. 5 : Terminal genitalium, showing tegumental papillae, median sagittal section