Vampire, duh. (Though specifically Round Desmonds (Thanks Moot for putting that name in my head) Desmodus Rotundus). They're little fluff pals, though the white-winged vampire bat is also cute.

I do really like the California leaf nosed bat and pygmy round-eared bat, that's partly why I specifically list them on Ferris' reference! Beyond the fact they're two of the bats with most similarity to Ferris' shapeshifting amalgamate shape of a bat https://www.furaffinity.net/view/54135973/

The Ghost bat in the false vampire bat family is another I considered for Ferris too!

Final honourable call outs the doughnut bats too, the Honduran white bat and the eastern red bat.