- 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
--1 is a kind of fish family
--1 is a member of
--1 has members:Elasmobranchii, subclass Elasmobranchii, Selachii, subclass Selachii requiem shark; Carcharhinus, genus Carcharhinus; Negaprion, genus Negaprion; Prionace, genus Prionace; Galeocerdo, genus Galeocerdo; Galeorhinus, genus Galeorhinus