Gongs

Gongs were a tribal úvanimo race obscurely related to Orcs - more akin to goblins - that hailed from Utumna. They were probably a sub-race of Orc and like them they served evil purposes.

History
Gongs were counted among the monsters from Utumna that plagued Beleriand and were allied with evil. A guard of orcs and gongs led by Mîm were left by the Dragon Glorund to protect his treasure in Nargothrond. The war-band was later slain by Húrin and his companions.

Trivia

 * Gongs may be identical to goblins. They were left out of the later writings.