requiem shark

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

• bull shark, cub shark, Carcharhinus leucas — a most common shark in temperate and tropical coastal waters worldwide; heavy-bodied and dangerous
• sandbar shark, Carcharhinus plumbeus — most common gray shark along coasts of middle Atlantic states; sluggish and occasionally caught by fishermen
• blacktip shark, sandbar shark, Carcharhinus limbatus — widely distributed shallow-water shark with fins seemingly dipped in ink
• whitetip shark, oceanic whitetip shark, white-tipped shark, Carcharinus longimanus — large deep-water shark with white-tipped dorsal fin; worldwide distribution; most dangerous shark
• dusky shark, Carcharhinus obscurus — relatively slender blue-gray shark; nearly worldwide in tropical and temperate waters
• lemon shark, Negaprion brevirostris — common shallow-water schooling shark of the Atlantic from North Carolina to Brazil and off west Africa; dangerous
• blue shark, great blue shark, Prionace glauca — slender cosmopolitan, pelagic shark; blue body shades to white belly; dangerous especially during maritime disasters
• tiger shark, Galeocerdo cuvieri — large dangerous warm-water shark with striped or spotted body
• soupfin shark, soupfin, Galeorhinus zyopterus — Pacific shark valued for its fins (used by Chinese in soup) and liver (rich in vitamin A)

• shark — any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales

• 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