Should
species:lamia imply
snake? A large proportion of lamia images (about 800) aren't tagged with snake, but a reasonable number (about 300) are, and after all lamias are snake-like creatures.
An additional question is what should be done with
snake pony? In some cases such as
this it seems to be basically equivalent to lamia, but in other cases like
this it is just a pony-ish snake. In either case it seems a bit redundant, but I'm not clear what implications or aliases it ought to have.
Related to that, I edited several lamia and snake-related tags with implications. Most of these were "x-lamia" tags indicating that character x was a lamia, to which I added the implication that the character in question was in the image and that there was a character of species:lamia. I was somewhat unsure how to handle the tag
fluttersnake, which was approximately evenly divided between images of her as a snake and her as a lamia, so I only added that it implied fluttershy.