types:
Carcharhinidae,
family Carcharhinidae
largest family of living sharks; found worldwide especially in tropical waters; dorsal fin lacks spines: requiem sharks including tiger sharks and soupfin sharks
Triglidae,
family Triglidae
in some classifications restricted to the gurnards and subdivided into the subfamilies Triglinae (true sea robins) and Peristediinae (armored sea robins)
Triglinae,
subfamily Triglinae
in some classifications considered a subfamily of Triglidae comprising searobins having ordinary scales and no barbels (true searobins)