Sorry for the delayed announcement. I had some underwear to adjust.

Welcome to TERA Mongo: Neon Version! There have been some tweaks and changes to where and how Mongos spawn. Common Mongos now drop parcel loot that your whole party can enjoy. They're also much more plentiful, so even though you might only get a few bits of loot at a time, a party's worth of Mongo hunters should be able to stack up quite nicely on enchanting materials... plus there's always the chance of encountering an uncommon, rare, or Legendary Mongo.

The news post has more than a couple handy images that should server as your Mongodex. That includes map locations where you can find each Mongo, plus some hints as to what loot they prefer to hang onto.