[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Osteichthyes Huxley, 1880 - bony fishes and tetrapods see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
       Order Perciformes Bleeker, 1859 - perches
         Family Trichiuridae Rafinesque, 1810 - cutlassfishes
           Genus Benthodesmus Goode & Bean, 1882
             1 Benthodesmus elongatus (Clarke, 1879) - elongate frostfish
             2 Benthodesmus simonyi (Steindachner, 1891) - frostfish