Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Macroscelidea Butler, 1956 - elephant shrews
       Family Macroscelididae Bonaparte, 1838 - elephant-shrews
         Genus Petrodromus Peters, 1846 - forest elephant shrew
           Petrodromus tetradactylus Peters, 1846 - four-toed elephant-shrew
             1 [Petrodromus tetradactylus tetradactylus]ᵀ Peters, 1846
             2 Petrodromus tetradactylus beirae Roberts, 1913
             3 Petrodromus tetradactylus rovumae Thomas, 1897
             4 Petrodromus tetradactylus schwanni Thomas & Wroughton, 1907
             5 Petrodromus tetradactylus sultani Thomas, 1897
             6 Petrodromus tetradactylus swynnertoni Thomas, 1918
             7 Petrodromus tetradactylus tordayi Thomas, 1910
             8 Petrodromus tetradactylus warreni Thomas, 1918
             9 Petrodromus tetradactylus zanzibaricus Corbet & Neal, 1965