Upamon

Upamon is a Lesser Digimon whose name comes from the Nahuatl word "upa," referring to a young axolotl, which is a type of salamander. He seems to bear gills on the ears on both sides of his body. He can live on the land or underwater, but he seems to prefer living on the land. He is easily tormented by other Digimon for his carefree nature. However, due to this nature, he seems to misunderstand the concept that he is being tormented and thinks it's all a joke.

Digimon Adventure 02
In the Digimon Adventure 02 anime Upamon is the In-Training form of Armadillomon, one of the series' main characters.

Digimon Frontier
Upamon was seen on Ophanimoon.

Digimon Data Squad
Mercurimon tells of some Upamon who were fleeing from Kurata's group 10 years ago.

 Attacks
 * Shock Shout: daunts the enemy by yelling out a high-pitched tone.