context: Kinorinha [1] is a class of invertebrate animals from the Scalidophora group (some researchers consider it as an independent type). Kinorinha live in the surface layer of silty soil or between grains of sand in the seas around the world. A distinctive anatomical feature of the kinorinch is metamerism in the structure of the cuticle, muscles, epidermal glands and the nervous system. The body is divided into 13 segments, the first of which is the trunk (introvert). They have no limbs and move due to the retraction of the trunk. As part of the trunk, there are two subdivisions: the mouth cone and the central part. At kinorinh, the mouth cone extends, and does not turn out, like the priapulids. Kinorinha dioecious, well-pronounced sexual dimorphism. Details of the embryonic development of kinorinh are unknown. Hatched worms are similar to adults and immediately start feeding.
question: Where do kinorinhs live?
answers.text: surface layer of silty soil or between grains of sand in the seas around the world