Crossreference:  Fish   Osteichthyes (Bony Fish)    Teleost Hormones   
Teleost Cortisol, etc.
    Teleost Dominance Hierarchies   

Teleostei (Wiki) 
"Teleostei is one of three infraclasses in
class Actinopterygii, the ray-finned fishes. This diverse group, which arose in the Triassic period[1], includes 20,000 extant species in about 40 orders; most living fishes are members of this group.[2] "