>>39273986No morphically its skeletal structure (as in lengths and thicknesses) and visable configuration (orientation and position of bones) as well as range of motion in the spine all conform to Vulpes
Furthermore felines have semi-prehensile tails, a canine does not and neither does eevee, eevee also lacks whiskers which yes he does have in some evolutions .... but those evolutions also have him turning into a plant, fish, or ribbon monster.
Basically its a fox, just like Zorua is a fox, though Eevee closest relative in form would actually be Fennekin