|Type: Animal Digimon|
|Family(s): Nature Spirits|
|Digivolves From: Gummymon|
|Digivolves To: Fan: Gargomon X|
|Appears in: Fan: Digimon Academy|
|Fan: Dani Pennykettle|
Terriermon X is a Terriermon that has been affected by the X-Antibody. It is black and neon green, instead of white and green. It is more powerful and larger in size. It still is a Vaccine type though.