Fathom Flesh

Fathom Flesh drops from the following fathom rays in Nazjatar:
 * Bloated Sky Ray
 * Coral Skate
 * Fathom Ray Broodkeeper
 * Fathom Ray

As a quest objective

 * Feed Them All

Trivia

 * During the PTR, it was named Moist Fathom Flesh.