Board Thread:Legitimate Canon Questions/@comment-207.204.65.87-20141020231920/@comment-4091815-20141021002546

The nogitsune seen on Teen Wolf was not shown with tails. In The_Fox_and_the_Wolf, he expressed surprise that Noshiko's tails were physical objects and said he didn't understand it.

There is no indication that Teen Wolf's Nogitsune had tails.