ðˈɪs, ɐlˈɔŋ wɪððə hˈɔːɹnlˈaɪk ɹˈɑːstɹəm, mˌeɪd tˈɛɹæspiz vˈɛɹi stɹˈiːmlaɪnd ɪn ʃˈeɪp; ɐ pˈɜːfɛkt kwˈɔlᵻɾi fɚɹə ɡˈʊd swˈɪmɚ.
This, along with the horn-like rostrum, made Pteraspis very streamlined in shape; a perfect quality for a good swimmer.