|Attacker Type:||Att. type needed|
|Can be ridden||No|
|Can be hatched||No|
Shellmon is a Sea Animal Digimon. It is a hermit crab-like Digimon that lives in the margins of the "Net Ocean". Although it has a turtle-like appearance when its settled inside its shell, for all intents and purposes it has a soft body like a mollusk. Because its body rapidly gets bigger as it grows, it replaces its home each time until it reaches the size of a small mountain. Also, if its body can fit all the way in, it has a habit of settling in completely. Since it has low intelligence and a belligerent personality, you must be careful if you come across a Shellmon. Sangomon use the backs of Shellmon as a resting place.