Vulptex

The vulptex (plural: Vulptices) is a crystalline alien fox found on Crait. It will appear in the 2017 film Star Wars: The Last Jedi.

Background
The fox-like Vulptex is specifically adapted to its mineral environment, evolving to the point that its fur has become crystalline like the planet's surface. Vulpices normally run across the salt flats and burrow deep within the planet's crevasses. They have also come to inhabit the former hideouts of the Rebel Alliance once stationed on Crait.

Trivia

 * The name "Vulptex" is derived from vulpes, the Latin word for "fox."
 * The vulptex was accomplished by constructing an animatronic version to interact with the actors, and from there the puppet was digitally scanned to construct separate static models.