Willis McNelly documented how these creatures produced a cinnamic acid-derived biopolymer that appears deep blue. A larval form of these creatures act like leeches (-5[1])and are named for resembling trout. Bile expelled by these creatures as they drown in water is ingested in a ritual to become a Reverend (10[1])Mother. These creatures are (10[1])impaled (10[1])with Maker (10[1])Hooks after they are attracted (10[1])using an egg-shaped thumper. These creatures, which are called Shai-Hulud (10[1])and are ridden by (10[1])Fremen, guard a psychedelic fungusoid nicknamed spice. An odd 2024 popcorn bucket depicts the massive mouth of, (10[1])for 10 points, (10[1])what creatures that roam the planet of Arrakis in Dune? ■END■