硬骨魚綱
こうこつぎょこう
Osteichthyes (class comprising the bony fishes and sometimes their descendants, i.e. tetrapods)
軟骨魚綱 is read as なんこつぎょこう (nankotsugyokou) and means Chondrichthyes (class comprising cartilaginous fishes).
なんこつぎょこう
nankotsugyokou
こうこつぎょこう
Osteichthyes (class comprising the bony fishes and sometimes their descendants, i.e. tetrapods)