[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Pisces Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi Order Osmeriformes - freshwater smelts see Suborder Osmeroidei Family Alepocephalidae - slickheads Genus Xenodermichthys Günther, 1878 1 Xenodermichthys copei (Gill, 1884) - Atlantic gymnast