They range in size from the Chinese giant salamander (Andrias davidianus), which has been reported to grow to a length of , to the diminutive Thorius pennatulus from Mexico which seldom exceeds  in length.
ðeɪ ɹˈeɪndʒ ɪn sˈaɪz fɹʌmðə tʃaɪnˈiːz dʒˈaɪənt sˈælɐmˌændɚ ˈændɹiəz dˈeɪvɪdˌiənəs, wˌɪtʃ hˈæzbiːn ɹᵻpˈoːɹɾᵻd tə ɡɹˈoʊ tʊ ɐ lˈɛŋθ ʌv , tə ðə dᵻmˈɪnjuːtˌɪv θˈoːɹɪəs pˈɛnɐtʃələs fɹʌm mˈɛksɪkˌoʊ wˌɪtʃ sˈɛldəm ɛksˈiːdz ɪn lˈɛŋθ.