ulommas
Ulommas are a fictional taxon used in speculative biology and worldbuilding to describe bioluminescent, cave-dwelling organisms. The concept is commonly employed in science fiction and fantasy lore to illustrate subterranean ecosystems and their unique energy dynamics.
In appearance, ulommas are described as small, gelatinous to semi-rigid bodies roughly 1 to 3 centimeters across,
Ulommas are typically imagined as saprotrophs or microbivores, feeding on organic matter that sinks into cave
Taxonomically, ulommas are presented in speculative classifications as an informal order Ulommales, with a family Ulommataceae
Cultural usage often situates ulommas as symbols of hidden biodiversity and the resilience of life in extreme