Fuzosheppu

The creature which appears in chapter 46 parts 1 & 2, often likened to a jellyfish.

Description
Crustacean like head, but mostly formless body. It can fly outside the force field, probably because it is lighter than air. It is a massive creature and has thus far only appeared once. It's transparent, gelatinous body reveals its organs within.

Riko guesses that since Oogasumi don't hunt in packs and are aggressive, agile, and stubborn, that it is probably very territorial and occupies a vast area.

Trivia

 * Riko named the creature while telling Moogie about her plan to kill it.