Onsenmoguratchis are small and black, and they carry red shovels. They have three hairs on their head (resembling steam lines) and round brown eyes. They have red noses which glow when they find a hot spring.
Onsenmoguratchis dig hot springs with their shovels. They spend much of their time underground, and do not see well in daylight.
Onsen (温泉) means hot spring; Mogura (モグラ) means mole.