[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 Osmeriformes Regan, 1913 - freshwater smelts
         Family Bathylagidae Gill, 1884 - deepsea smelts
           Genus Bathylagichthys Kobyliansky, 1986
             Bathylagichthys greyae (Cohen, 1958) see Bathylagus greyae Cohen, 1958