ðeɪ kæn biː mˌɔːɹfəlˈɑːdʒɪkli dɪstˈɪŋɡwɪʃt baɪ ðɪ ˈæbsəns ʌv tˈɛmpɚɹəl ˈɑːɹtʃᵻz, wˌɪtʃ ɐlˈaʊz ɡɹˈeɪɾɚ mˌuːvəbˈɪlᵻɾi ʌvðə hˈɛd.
They can be morphologically distinguished by the absence of temporal arches, which allows greater moveability of the head.