ðə dʒˈɛnɚɹə ɐkɹɐntˈɑːfɪz ænd sænzˈɪniə wɜːɹ ɛɹˈoʊniəsli sˈɪnənˌɪmaɪzd wɪððə dʒˈɛnəs bˈoʊə baɪ klˈuːdʒ ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti wˈʌn.
The genera Acrantophis and Sanzinia were erroneously synonymized with the genus Boa by Kluge in 1991.