The Official Purple Frog Appreciation Page gives it up for a "doughnut-shaped, frog" found in the mountains of southern India. According to the tribute site, this "living fossil" is also ...

bloated and purple and has very tiny eyes. Look how small the head is.



I'm not sure, but going off the site, this bloated, exotic creature may actually be called The Purple Doughnut Frog and that would be awesome.