Longitudinal section close to that depicted in B...Longitudinal section close to that depicted in B, to show the junction between stomach and intestine (outlined arrowhead), the stylet apparatus of the proboscis and the approximate anterior limits of the body wall longitudinal musculature (large arrowheads) (Mallory)
Longitudinal section through the anterior region of the body...Longitudinal section through the anterior region of the body to show the cephalic glands, foregut, rhynchodaeum (arrowhead) and proboscis apparatus. Part of the pre-cerebral septum is indicated by the arrow (Mallory)