I finally got around to skimming through the Monstergirl Encyclopedia that I got (https://www.amazon.com/Monster-Girl-Enc … 1626923612).

The roper is perhaps the only one in there that is body modification related.

Here is the wiki version (less than stellar grammar):
http://monstergirlencyclopedia.wikia.com/wiki/Roper

And here's my low quality photo of the official entry:
http://imgur.com/a/dMQbl

The interim stage of being physically transformed but not yet mentally transformed was particularly attractive to me.