Pilumnus gemmatus

are eaten by

• Global Biotic Interactions: Loligo plei
• Global Biotic Interactions: Pareques acuminatus (Bloch & Schneider 1801) (Cluck)
• Global Biotic Interactions: Ginglymostoma cirratum (Bonnaterre 1788) (Nurse Shark)
• Global Biotic Interactions: Cephalopholis fulva (Linnaeus 1758) (Black Guativere)
• Global Biotic Interactions: Cephalopholis cruentata (Lacepède 1802) (Coney Barbados)

eat

• Global Biotic Interactions: Holothuria (Halodeima) mexicana Ludwig 1875 (Donkey Dung)
• Global Biotic Interactions: Ceramium nitens
• Global Biotic Interactions: Arca zebra Swainson 1833 (Atlantic turkey wing)
• Global Biotic Interactions: Halimeda goreauii
• Global Biotic Interactions: Geitodoris pusae (Er. Marcus 1955)