Fujitsumon

Fujitsumon is a tiny Shellfish Digimon who clings to the pot Octomon wears on its head. These Fujitsumon develop their senses, and it is thought that they have formed a symbiotic relationship so that if they sense danger they inform Octomon.

Design
The yellow glowing eyes attached Octomon's pot may be Fujitsumon.

Etymologies
Official name given by Octomon's Digimon Reference Book profile. No official romanization is available.
 * Fujitsumon (フジツモン)
 * Ja: Fujitsubo (フジツボ).