The Elderly Merchant's Wife is or was a human woman.
The wife of weary old merchant, this woman followed him on a trip to Agrabah with their daughter some time after Aladdin's first defeat of Jafar, against her better judgement (a backgammon enthusiast with a taste for the finer things in life, she didn't much enjoy the trip on camelback across the sands of the desrt). After the three travellers stumbled upon Jafar's Lamp, the daughter immediately wished they'd never gone on this rubbish trip at all.
Behind the scenes
The Elderly Merchant's Wife appears in the 1993 story More Arabian Nights.