acanthocephala means of locomotion
The proboscis also acts as the means of locomotion for these internal parasites. The bodies of the acanthocephalans are long, flattened, and vary in length from 1.5 millimeters to 1 meter, but do not include a digestive tract.Instead of a mouth, anus, and digestive tube, nutrients are taken in via pores and by diffusion, while the excretory system is tied to the sexual reproductive system.he bodies of the acanthocephalans are long, flattened, and vary in length from 1.5 millimeters to 1 meter, but do not include a digestive tract. Instead of a mouth, anus, and digestive tube, nutrients are taken in via pores and by diffusion, while the excretory system is tied to the sexual reproductive system.