| The epidermis is cellular and does not possess any locomotory cilia. |
| The Ecdysozoa, all of which molt and lack motile locomotory cilia, include priapulids, kinorhynchs, nematodes, nematomorphs, tardigrades, onychophorans, and arthropods. |
| They are often worm-like, or sac-like, without legs or other locomotory appendages. |
| What is more, rheumatic diseases are not just limited to the locomotory system. |
| If so, the oldest traces of locomotory activities of the metazoans should be connected with their infaunal life. |
| They proved to be mere gelatinous sacks, without any appearance of digestive or locomotory organs. |
