I have an idea why they might have gotten removed. I would really like clarification though. Currently there are no tags for transforming into specific animals. The game lack the various humanoid animal tags. I assume the pages got removed because they were too similar to those species tags. (Even though the game itself implies that they aren't a particular species). I was going to add all the humanoid animal combinations at some point anyways.
The game post #1390726 that was using those tags specifically refer to these beings as <animal type> + morph in the text itself. The morph part is used to differentiate between those that are of actual creature descent and those that have grown parts using the various transformative substances throughout the world. That being said I think it was primarily used to distinguish humanoid figures that had grown parts, and the animal figures, but the game never specifies that the original species had to be humanoid.
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