What monster names to use in config files?

[DaJadeNinja]

I'm putting together a rather large mod pack and editing the configs so the mods can mesh well together and achieve my goal of a vanilla-like experience that still feels brand new.

My question is: When listing monsters in a mod's config (for spawn rates or to enable certain features on them), what do I call them?

I know they have alternate names in the files, e.g. "MouthDog" for an eyeless dog. Where can I find a list of these ids? How can I find out the ids for entities added by mods?

[GaskinZ]

I know a few:
Masked
MouthDog
GhostGirl
Coil

[DaJadeNinja]

I figured it out! If you use the LethalDevMode mod, you can find all the IDs in the debug interface, including modded ones.