☆ Sylph Beast Tribe ☆
Unlocking them will help you to level up your classes.
You can find them at Little Solace, East Shroud (X:22, Y:26).
You can unlock them by doing the following quest:
Seeking Solace - NPC: Vorsaile
New Gridania (X:9, Y:11)
The Sylph Beast Tribe was added to Final Fantasy XIV in Patch 2.1.