Lake Spirit
a shapeless, phosphorescent creature living in the underground lakes of Circarpous V. It moves by extending various pseudopods out from its central core, which is filled with strange light and material. It is a spongy, low-density creature which can reabsorb pieces of itself if necessary. It appears to at least exhale air, for when Luke and Leia encountered on below Mimban's surface, it created a bubble trail while it swam underwater.