is a specific kind of: teleost, teleost fish, teleostan.

is a broader term that covers: order Ostariophysi, Ostariophysi | cypriniform fish | catfish, siluriform fish | gadoid, gadoid fish | eel | beaked salmon, Gonorhynchus gonorhynchus, sandfish | clupeid, clupeid fish | anchovy | salmonid | whitefish | smelt | tarpon, Tarpon atlanticus | Albula vulpes, bonefish | argentine | lanternfish | lizardfish, snake-fish, snakefish | greeneye | lancet fish, lancetfish, wolffish | handsaw fish | Lampris regius, moonfish, opah | Lampris guttatus, New World opah | ribbonfish | king of the herring, oarfish, Regalecus glesne, ribbonfish ... show more.

has as a member: whitebait.

is a member of: Malacopterygii, superorder Malacopterygii.

is the opposite of: acanthopterygian, spiny-finned fish.