Complex sentence: Codlets are a family, Bregmacerotidae, of cod-like fishes, containing the single genus "Bregmaceros" found in tropical and subtropical waters throughout the world.
Split into simpler sentences: Codlets are a family, Bregmacerotidae, of cod-like fishes, containing the single genus "Bregmaceros". They are found in tropical and subtropical waters throughout the world.