"Bell Hell's Intro" & "McFarlane's Evil Prophecy" (Jackal and Werewolf Transformations)

Thanks to Andréssaurio Rex for these videos. First, a werewolf in the animated intro to Bells Hells, a "campaign" of the web series Critical Role: 

 

And another intro, this time to the 2004 video game McFarlane's Evil Prophecy. Since there's a direct cut from the head of the transformed character to that of Anubis, I've classed this as a jackal transformation. On the other hand, it's induced by the full moon, so who knows?  

 

Urgent Transformation Crisis (Snake, Jackal, Gorilla, and Lynx transformations)

By Daymon

As you can guess from the title, animal transformations abound in this webcomic. I've found several:

Snake: XCIII
Jackal: CII
Gorilla: CCXVIII
Lynx: CCXXVI
Cheetah: CLXXV
Anthro Flying Squirrel to Feral form: CLXXXVII

Fairy Tail 2014 (Jackal Transformation)

Many thanks to Aaron for notifying me of a transformation scene from episode 62. A villain named Jackal transforms into a werewolfy version of his namesake:


Fairy Tail Jackal Transformation by kumaguma1
 
Thanks again Aaron--you were right about the hot shirt-ripping!

EDIT: New video source uploaded by Daymon.

Black Tapestries & The Realm of Kaerwyn (Various Transformations)

These two fantasy webcomics are by Jakkal and feature multiple transformations.
From Black Tapestries we have transformations involving:

* A werewolf, starting here.

* Several jackals, starting here. 

* A wolf, raccoon, and crow .

* A quick fox TF.

* An anthropomorphic fox, starting here.

* An anthro dog.

Now we move onto The Realm of Kaerwyn and find transformations involving:

* An anthro raccoon.

* A werewolf.

* A reversion from anthro dog to human.

* Another werewolf.

Both comics are ongoing, so watch them for further transformations.