The rare giant variety.
Eleuter are strange carnivores, incapable of moving they usually only measure just a few inches. There is a rare species called the Giant Eleuter that are large enough to consume a Theodore.
Its shapeless body grows based on the trunks of the trees that eventually pierce entirely, the animals internal organs develop around these trunks. The animal uses its long neck, capable of elongating and retracting to quickly capture prey.