noun
teleosts; Teleostei
Scientific term for the infraclass Teleostei, the largest group of ray-finned fishes. Used in biology and ichthyology.
真骨類は硬骨魚類の中で最も多様なグループである。
Teleosts are the most diverse group within the bony fishes.
硬骨魚類 (Osteichthyes) is the broader class of bony fishes, while 真骨類 is a subgroup within it.
From 真 (true) + 骨 (bone) + 類 (group), a direct translation of the scientific name Teleostei (from Greek teleios 'complete' + osteon 'bone').