Shakomon

A Digimon shaped like a bivalve covered by a hard shell. Because its shell developed rapidly, its inner structure has become slime-shaped like that of a Baby. It is a cunning fellow who lures the opponent with its cute face, and attacks them once they get close. Also, when its shell is closed, it has such high defense as to easily deflect things such as light attacks.

(Source: Wikimon)