[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Annelida Lamarck, 1809 - segmented worms
     Class Polychaeta Grube, 1850 - polychaetes
       Family Apistobranchidae Mesnil & Caullery, 1898
         Genus Apistobranchus Levinsen, 1883[1884]
           1 Apistobranchus tenuis Orrhage, 1962
           2 Apistobranchus tullbergi (Théel, 1879)