The Plethodontidae is a family of lungless salamanders. They are the largest groups of salamanders. They probably evolved in North America, where there are 14 genera and about 150 species. Only one species is in Europe: it is Speleomantes, the cave salamander.
Most of them are terrestrial and are active in daytime. Lungless salamanders may communicate with their nose.p168 Slender salamanders are found in the Pacific Coast. They are sometimes called "worm salamanders". This is because they have slimmer (skinny) bodies than most salamanders.p182 If touched, slender salamanders will bounce on the ground and then run away.