Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Pisces Class Actinopterygii Woodward, 1891 - ray-finned fishes Order Salmoniformes Rafinesque, 1810 - trouts Family Alepocephalidae - slickheads Family Argentinidae - argentines Family Bathylagidae - deepsea smelts see Subfamily Bathylaginae Family †Bernardichthyidae Family Esocidae Rafinesque, 1815 - pikes Family Galaxiidae - galaxiids Family Lepidogalaxiidae - salamanderfishes see Subfamily Lepidogalaxiinae Family Leptochilichthyidae - leptochilichthyids Family Microstomatidae Family Opisthoproctidae - spookfishes Family Osmeridae Regan, 1913 - smelts Family †Pattersonellidae Family Platytroctidae - tubeshoulders Family Plecoglossidae - ayu fishes see Subfamily Plecoglossinae Family Retropinnidae - New Zealand smelts Family Salangidae - icefishes see Tribe Salangini Family Salmonidae Regan, 1914 Family Umbridae Günther, 1866 - mudminnows see Family Esocidae Rafinesque, 1815