fish family - any of various families of fish

Elasmobranchii, Selachii, subclass Elasmobranchii, subclass Selachii - sharks; rays; dogfishes; skates

requiem shark - any of numerous sharks from small relatively harmless bottom-dwellers to large dangerous oceanic and coastal species

Carcharhinus, genus Carcharhinus - type genus of the Carcharhinidae

genus Negaprion, Negaprion - lemon sharks

genus Prionace, Prionace - blue sharks

Galeocerdo, genus Galeocerdo - tiger sharks

Galeorhinus, genus Galeorhinus - a genus of Carcharhinidae