Linked from
The 7 pages that link to Illicium, each with the reason it gives.
EscaRelated: The illicium positions and moves the esca above the anglerfish’s mouth.
FrogfishBroader topic: It supports the lure frogfish wave above their mouths to attract prey.
FanfinRelated: Like other anglerfishes, fanfins carry an illicium and a lure.
GoosefishBroader topic: Goosefish use this spine to position the fleshy lure above the mouth.