| Noun | 1. | requiem shark - any of numerous sharks from small relatively harmless bottom-dwellers to large dangerous oceanic and coastal species 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 bull shark, Carcharhinus leucas, cub shark - a most common shark in temperate and tropical coastal waters worldwide; heavy-bodied and dangerous Carcharhinus plumbeus, sandbar shark - most common grey shark along coasts of middle Atlantic states; sluggish and occasionally caught by fishermen blacktip shark, Carcharhinus limbatus, sandbar shark - widely distributed shallow-water shark with fins seemingly dipped in ink Carcharinus longimanus, oceanic whitetip shark, white-tipped shark, whitetip shark - large deep-water shark with white-tipped dorsal fin; worldwide distribution; most dangerous shark Carcharhinus obscurus, dusky shark - relatively slender blue-grey 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 Galeocerdo cuvieri, tiger shark - large dangerous warm-water shark with striped or spotted body Galeorhinus zyopterus, soupfin, soup-fin, soupfin shark - Pacific shark valued for its fins (used by Chinese in soup) and liver (rich in vitamin A) |