This is Glupp. Currently the only creature of his kind, Glupp takes his differences in stride. Lacking back legs but using his webbed front paws and tail to easily propel himself, he loves to swim and doesn't need air to breathe instead, his thick mane of fur conceals gills to breathe when underwater, and his fishbowl-like head scoops water that he stores to breathe and move above land. Even though his head looks crystal clear and see-through, he's actually quite intelligent and has his brain located near the base of his tail, and his head is made of a mysterious mineral that is nearly unbreakable, and his skeleton is made of the same stuff. Oddly enough, he doesn't need to eat to stay alive, merely breathe and drink water. Underneath his thick fur he is actually quite squishy to touch.
Thanks again to Dragonstars for coming up with and letting me have his design!