Salamanders are not like frogs in that they don't use their tongues to capture their food. All of the non-aquatic salamanders have a very mobile and well developed tongue which is used to procure food when they hunt. Some lungless salamand ers have a mushroom-shaped tongue that is darted onto prey like a chameleon. Salamanders usually have very small teeth which are implanted on margins of the lower and upper jaws and the roof of their mouth, although Sirenids only have them on the roof of their mouths. In some lungless salamanders the teeth have a sexual function.
Salamanders differ from frogs and toads whose larvae only has horny structures for teeth.
Salamander larvae have tru e teeth. Salamanders have a short esophagus leading to a stomach from which exits an almost straight intestine. There is little difference between the small and large intestine. The terminal part of their rectum enlarges to form a cloaca which is where the urin ary and reproductive tracts meet their end. The cloaca opens underneath the base of the tail.