That's our name for tadpoles that have legs, but that still have a long tail. Here are pictures of four of them. (One of mine has only grown three of his legs!) You can click on any picture to enlarge it.
Hoppy (Cameron's frog)
I made an aquarium for mine with a sandy part for when they turn into frogs. We did the same thing for Cameron's.
NOTE: You have to have chlorine-free water, or your tadpoles will die. You can get the chlorine out by leaving a bowl of water out overnight. In the morning, it will be chlorine-free.