oral  sucker, revealing the muscular pharynx to the left and branching of the caeca in Clonorchis sinensis, the Chinese liver fluke.  100x
The large round body in the foreground is the acetabulum with the brown, egg-filled uterus to the left.  The parallel lines represent the caeca.  If you follow the pathway of the uterus toward the right, the genital pore is represented by a small circle immediately along side the acetabulum.  The granular material along the periphery of the worm are vitelline glands. This fluke, Clonorchis sinensis is common where raw, freshwater fish, such as carp, is eaten, particularly in the Orient where some human populations approach a 100% infection rate.   100x