From Tolkien Gateway
Elephants were creatures only mentioned fleetingly. Gandalf does mention them, so it is possible that they shared the wide burning plains of the Harad with what would be their giant relatives, the Mûmakil.
Portrayal in adaptations
1982-97: Middle-earth Role Playing:
- Andamundar (suggested plural form of Andamunda) are described as "the smaller and more numerous cousin of the famous Mûmak".