Bombfish Spine

Bombfish Spine is a bone.

Source
Bombfish Spines can be obtained as a drop from mobs or duties.

Drops
Bombfish Spines can be obtained as a drop from the following mobs:
 * Bombfish - The Ruby Sea
 * Hooked Bombfish - The Ruby Sea

Duties
Bombfish Spines can be obtained as a drop from the following duties:
 * Hells' Lid
 * The Drowned City of Skalla
 * Saint Mocianne's Arboretum (Hard)
 * The Burn
 * The Fractal Continuum (Hard)
 * The Ghimlyt Dark
 * The Swallow's Compass

Uses
Bombfish Spines are used in crafting the following items: