| List of Terms | Taxonomic Terms | |
| gills operculum gill filament gill arch ram ventilation buccal pumping countercurrent exchanger facultative air breather obligate air breather undulation anguilliform carangiform ostraciiform balistiform labriform lift drag thrust swim bladder physostome pneumatic duct physoclist gas gland rete mirabile countercurrent multiplier ovale viscous drag inertial drag aspect ratio refractive index internal ear labyrinth organ neuromast organ hair cells kinocilium afferent nerves cupula electrocyte electrogenesis electroreception cosmine ganoine hyomandibula maxilla premaxilla quadrate orobranchial chamber homocercal protrusible jaw Weberian apparatus hermaphrodite sequential hermaphroditism protandrous hermaphroditism protogynous hermaphroditism epipelagic mesopelagic bathypelagic photic zone aphotic zone estivation | Teleostomi Acanthodii Osteichthyes Sarcopterygii Actinopterygii Neopterygii Teleostei Osteoglossomorpha Elopomorpha Euteleostei Clupeomorpha Actinistia Dipnoi |