Tabaqui the jackal.
From Mowgli's Brothers
It was the jackal--Tabaqui, the Dish-licker--and the wolves of India despise Tabaqui because he runs about making mischief, and telling tales, and eating rags and pieces of leather from the village rubbish-heaps. But they are afraid of him too, because Tabaqui, more than anyone else in the jungle, is apt to go mad, and then he forgets that he was ever afraid of anyone, and runs through the forest biting everything in his way. Even the tiger runs and hides when little Tabaqui goes mad, for madness is the most disgraceful thing that can overtake a wild creature. We call it hydrophobia [rabies], but they call it dewanee--the madness--and run.
In Stephen Sommer's The Jungle Book (1994), Tabaqui's character is excluded, however the name is given to one of Captain William Boone's associates.