Bat Fang

Bat Fang is a bone.

Source
Bat Fangs can be obtained as a drop or purchased from vendors

Drops
Bat Fangs can be obtained as a drop from the following mobs:
 * Cave Bat - Lower La Noscea
 * Black Bat - Sastasha
 * Dusk Bat - Western La Noscea
 * Black Bat - East Shroud
 * Blood Bat - East Shroud
 * Attic Bat - Haukke Manor
 * Lesser Kalong - North Shroud
 * Snakemolt Bat - South Shroud
 * Sun Bat - Central Thanalan
 * Sand Bat - Cutter's Cry
 * Halatali Bat - Halatali
 * Temple Bat - The Sunken Temple of Qarn
 * Temple Fox - The Sunken Temple of Qarn
 * Vale Bat - Aurum Vale

Vendors
Bat Fangs can be purchased for from the following vendors:
 * Aistan - Ul'dah - Steps of Thal
 * Esmenet - Ul'dah - Steps of Thal

Uses
Bat Fangs are used in crafting the following items: