Databank - Physiology

Hidden beneath his traditional robes were four delicate arms which granted Yarael Poof remarkably dexterity. He is a member of the Quermian species, a race of sentient invertebrates related to the Troiken of Xexto. Poof's sensitive olfactory glands were located in his hands. Poof had two brains, one located inside his skull and the other in his chest cavity.

Source:
https://web.archive.org/web/20101223050926/http://starwars.com/databank/character/yaraelpoof/index.html