👉 Macellicephaloides is a type of macropodian, or small-sized, echinoderms that live in shallow waters. They are characterized by their large eyes and slender bodies, which allow them to see through water and navigate with ease. Macellicephaloides is often associated with the presence of small, round-shaped structures called "macells" that contain a fluid-filled cavity known as an "ephidium" or "eye." These macellae
