[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superclass Tunicata Cuvier
     Class Appendicularia Lahille, 1890 - appendicularians
       Family Oikopleuridae Lahille, 1887
         Genus Balhochordaes van der Land, 2001, orth. inval. see Genus Bathochordaeus Chun, 1900
           Balhochordaes stygius van der Land, 2001, comb. inval. see Bathochordaeus stygius Garstang, 1937