Partly after Uetz, Etzold & Chenna, 1995-2000

    Xerobates Agassiz, 1857
        Testudo Linnaeus; Boulenger, 1889
        Gopherus Stejneger, 1893

        Xerobates agassizi Cooper, 1863
            Xerobates agassizii Cooper, 1863
            Testudo agassizii (Cooper); Boulenger, 1889
            Gopherus agassizii(Cooper); Stejneger, 1893
            Gopherus polyphemus agassizii(Cooper); Mertens & Wermuth, 1955
            Gopherus agassizii (Cooper); Stebbins, 1985
            Gopherus agassizii (Cooper); Liner, 1994
            Gopherus agassizii (Cooper); Uetz, Etzold & Chenna, 1995-2000

        Xerobates berlandieri Agassiz, 1857
            Xerobates berlandieri Agassiz, 1857
            Testudo berlandieri (Agassiz); Boulenger, 1889
            Gopherus berlandieri (Agassiz); Stejneger, 1893
            Gopherus polyphemus berlandieri (Agassiz); Mertens & Wermuth, 1955
            Gopherus berlandieri (Agassiz); Conant & Collins, 1991
            Gopherus berlandieri (Agassiz); Liner, 1994
            Gopherus berlandieri (Agassiz); Uetz, Etzold & Chenna, 1995-2000

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