Botamon

Botamon is a Slime Digimon whose name is derived from "Womb" (『母胎』), and as such is an infant. It's about a foot tall, and its mouth is covered by its black fur, making it invisible unless opened.

Digimon Adventure
Several Botamon are seen in Primary Village.

Digimon Adventure (Movie)
The Digi-Egg that emerges from Tai and Kari's computer hatches into a Botamon.

Digimon Adventure 02
A Botamon is seen in Primary Village.

Several Botamon are seen with an Elecmon (most likely the Primary Village Caretaker) and other Fresh Digimon in a forest as BlackWarGreymon passes by.

Digimon Frontier
Botamon are seen in both Villages of New Beginnings.

Digimon Data Squad
Agumon once chased a Botamon for fun.

Digimon World Dawn/Dusk
Botamon is treated as an In-Training digimon and can digivolve into BlackAgumon or Candlemon

Attacks
 * Bubble Blow (Acid Bubbles): Fires pink bubbles from its mouth.