Girdle wearers attach themselves to sand or mud with a kind of glue made by glands located toward the rear of adults and on the toes of larvae. Larvae (LAR-vee) are animals in an early stage that change form before becoming adults. Adults crawl by using their spines and their mouth cones. The mouth cone telescopes out to its full length, fastens itself to a sand grain, and then draws in again so that the animal’s body is pulled forward. The larvae use spines and bristles to crawl between grains of sand. They can also swim by using their toes. Girdle wearers eat by piercing bacteria and algae with their mouth spears and sucking out the contents….. but I don’t think this has much to do with the above article from Deety somehow …source here: