Species: kudamon
Kudamon is a ferret-like HolyBeast Digimon with the affinity of light in the vaccine catagory, and is often seen with a gold ring for a collar (a Holy Ring) and a bullet attached to it's tail (known as the Holy Cartridge).
Kudamon are typically servants of Yggdrasil (known as King Drasil in the dub), as it is the rookie form of Kentaurosmon, one of the Holy Knight Digimon that follow Yggdrasil's will.
This tag implicates digimon_(species) (learn more).