Bulchin
The Bulchin has the appearance of a plump panther with a human face and a usual grin. In Lewis Carroll’s Cheshire cat in Alice in Wonderland is some form of a Bulchin. The Bulchin in medieval Europe is also known as the Bicorne.
John and Caitlin Matthews, The Element Encyclopaedia of Magical Creatures, 2013, Bulchin, p 76