[Class] Cestoda - tapeworms see Infraclass Cestoda
   Order Lecanicephalidea Hyman, 1951
     Family Polypocephalidae Meggitt, 1924
       Genus Hornellobothrium Shipley & Hornell, 1906
         1 Hornellobothrium cobraformisᵀ Shipley & Hornell, 1906
         2 Hornellobothrium extensivum Jensen, 2005
         3 Hornellobothrium gerdaae Mojica, Jensen & Caira, 2014
         4 Hornellobothrium iotakotta Mojica, Jensen & Caira, 2014
         5 Hornellobothrium kolossakotta Mojica, Jensen & Caira, 2014
         6 Hornellobothrium najaforme Mojica, Jensen & Caira, 2014