Identification. During this time, hammerheads were responsible for 17 non-fatal, unprovoked attacks and 20 fatal, provoked attacks. The Scalloped Hammerhead was always the most common Hammerhead Shark around. They are very vulnerable to being caught as bycatch by trawls, purse-seine nets, gillnets and longlines. The other hammerhead species are the Bonnethead, the Great Hammerhead, the Scalloped hammerhead, Carolina hammerhead, Scoophead shark, Smalleye hammerhead, Smooth hammerhead and the Whitefin hammerhead. The first transmitter is fixed. Images of Sphyrna lewini: Scalloped hammerhead shark pictures. The next one is handed. They can be observed cruising over reefs and boulder-strewn slopes. The most distinguishing characteristic of this shark is it's "hammer-shaped" head. Hammerhead shark, (family Sphyrnidae), any of 10 shark species belonging to the genera Sphyrna (9 species) and Eusphyrna (1 species), which are characterized by a flattened hammer- or shovel-shaped head, or cephalofoil. Hammerhead sharks, or sphyrnids, are perhaps the most distinctive and unique of all sharks. Though relatively rare, unprovoked attacks cannot be ruled out. Like all other hammerhead sharks, the scalloped hammerhead has a "hammer", which is known as the "cephalofoil", on its head.The shark's eyes and nostrils are placed on the ends of the cephalofoil. The rituals for mating may seem harsh from our point of view as the males fiercely bite the females. Scalloped Hammerhead Shark Pictures. Hammerhead Shark Facts - Animals of the Ocean. The scalloped bonnethead (Sphyrna corona) is a rare, little-known species of hammerhead shark, and part of the family Sphyrnidae.Its other common names include the mallethead shark and the crown shark. First dorsal rear margin almost straight. However, the females have very thick skin so they aren’t in pain from those bites. Free rear … This shark's unusual name comes from the unusual shape of its head, an amazing piece of anatomy built to maximize the fish's ability to find its favorite meal: stingrays. Anatomy. They are threatened by commercial fishing, mainly for the shark fin trade. The wide, hammer-shaped head gives these sharks their common name, and the scalloped hammerhead is named for the notches found along the front edge of its head. The better the shot finds its target, the longer the transmitter will be fixed. The word Sphyrna is a Greek word meaning "hammer". There exist seven species. It has also been known as Cestracion leeuwenii in 1865, Zygaena erythraea in 1871, Cestracion oceanica in 1913, and Sphyrna diplana in 1941. The reproductive cycle for these sharks is about 1 year. Endangered Species Act, one of the world’s strongest wildlife conservation laws. Carolina Hammerhead . Finning is a practice, which cuts off the fins of sharks and put them back to ocean. The scalloped bonnethead (Sphyrna corona) is the smallest species of hammerhead shark, measures up to 92 centimeters (36 inches) long. Many species are classed as Hammerhead sharks, they are: Great Hammerhead, Bonnethead, the Scalloped hammerhead, Carolina hammerhead, Scoophead shark, Smalleye hammerhead, Smooth hammerhead, Whitefin hammerhead and the Winghead shark. Shrinivas Kanade Feb 12, 2020 ... Only the great hammerhead, the smooth hammerhead and the scalloped hammerhead are aggressive, and may attack a swimmer when provoked. Body grey to greyish brown. It is a species that looks nearly identical to the scalloped hammerhead, but it has 10 fewer vertebrae. Threats: The scalloped hammerhead is an increasingly targeted species by commercial and illegal fisheries for their fins as these are highly valued in the Asian market for shark fin soup. On an average basis, the hammerhead shark ranges from 1m to 6m+, with the largest being the Great Hammerhead. In parts of the Atlantic Ocean, their populations have declined by over 95% in the past 30 years. Second dorsal fin small and low. View all available Scalloped hammerhead shark images in the Shark Pictures Database Common Names: Scalloped Hammerhead Latin Name: Sphyrna lewini Family: Sphyrnidae Identification: Leading edge of hammer arched with well defined indentations. There are 9 known species of Hammerhead sharks that range from 0.9 to 6 metres (3 to 20 … The Scalloped Hammerhead was always the most common Hammerhead Shark around. The heaviest known great hammerhead is a 4.4 m (14 ft) long, 580 kg (1,280 lb) female caught off Boca Grande, Florida in 2006. Hammerhead shark is probably the weirdest type of sharks. It refers to the shape of the shark's head. Description. Commercial fisheries catch hammerheads for their oil, meat and skin. Facts about Hammerhead Sharks 8: the risk of extinction. There are nine species of hammerhead sharks that inhabit all oceans of the world. Hammerhead sharks can grow up to a length of 20 feet and weigh around 1,000 pounds. Hammerhead Shark Lifespan: These sharks have a lifespan of 20 to 30 years. The shark's eye placement, on each end of its very wide head, allows it to scan more area more quickly than other sharks can. Hammerhead sharks, in general, are listed by the International Shark Attack File #8 on its list of species responsible for shark attacks from the years 1580 to 2011. Sharks can detect weak electrical fields using electrical sense organs called the ampullae of Lorenzini. The hammerhead shark has been named after the shape of its head, which resembles a hammer. The scalloped hammerhead was first known as Zygaena lewini. Scalloped hammerhead sharks have became the first species of shark to be protected by the U.S. Yet thanks to overfishing and shark finning practices this species is now since 2008 on the “globally endangered” species list. The largest species is the Great hammerhead. A hammerhead shark uses its wide head to trap stingrays by pinning them to the seafloor. Diet. Out of nine species, two are listed as endangered (great hammerhead and scalloped hammerhead) and one as vulnerable (golden hammerhead) species. Scalloped hammerhead shark (Sphyrna lewini) feisty females fight for attention. Hammerhead Shark Facts for Kids. Feed mostly on bony fish, squid and occasionally sharks and rays. Like all other hammerhead sharks, the scalloped hammerhead has a "hammer", which is known as the "cephalofoil", on its head.The shark's eyes and nostrils are placed on the ends of the cephalofoil. Shark biologists consider that hammerheads have a relatively slow growth rate. In parts of the Atlantic Ocean, their populations have declined by over 95% in … Leading edge of hammer curved with well defined central and lateral indentations (scalloping). The Scalloped Hammerhead Shark can be distinguished by their large flattened 'hammer-like' head, with wide set eyes and prominent central scallop-like indentation in the front margin of the head. It is found in tropical and subtropical waters in the eastern Pacific Ocean, from Mexico to Peru, and possibly as far north as the Gulf of California. Hammerhead sharks are most common near Wolf Island and Darwin Islands in the north of the archipelago.Galapagos is one of the last remaining places where large schools of scalloped hammerhead sharks can be observed. The Scalloped Hammerhead Shark has a tapered shape, with light brown, bronze or olive colouring on the dorsal surfaces, fading to white below. It was renamed Sphyrna lewini in 1834. ... (Carolina hammerhead), Sphyrna lewini (Scalloped hammerhead), Sphyrna media (Scoophead), Sphyrna mokarran (Great hammerhead), Sphyrna tiburo (Bonnethead), Sphyrna tudes (Smalleye hammerhead), and Sphyrna zygaena (Smooth hammerhead). At certain times of the year, scalloped hammerheads swim in schools of several hundred animals — unusual behavior for predators at the top of the food chain. The Scalloped Hammerhead sometimes forms large migratory schools, dispersing at night to feed in deeper waters. A newly recognized species without widely available photographic evidence, the Carolina hammerhead (Sphyrna gilberti) was named in 2013. Scalloped hammerheads usually grow to the length of 1.5 to 2.7 meters long, but the longest found was 4.3 meters long. Hammerhead sharks are particularly vulnerable to being caught in gillnets (fishing nets) because of the unique shape of their head. Hammerhead sharks can be found both in deep and shallow waters. Description. Scalloped hammerheads usually grow to the length of 1.5 to 2.7 meters long, but the longest found was 4.3 meters long. At night it goes hunting on its own. Pectoral fins have dark tips. For example, male scalloped hammerheads take between 6 and 9 years to mature (at a length of 1.5 - 2 metres), while male great hammerheads take at least 9 years to mature (at a length of around 2.2 metres). Conservation. Hammerhead Shark Pic Facts about Hammerhead Sharks 9: finning. Yet thanks to overfishing and shark finning practices this species is now since 2008 on the “globally endangered” species list. The longest great hammerhead on record was 6.1 m (20 ft). Two distinct A perfect result, it hangs prominently on the back of the shark. These images of scalloped hammerheads (Sphyrna lewini) are available for commercial reproduction.If you would like more information on licensing fees, please email elasmodiver with as many details about your intended usage as possible including intended print run if applicable. The scalloped hammerhead (Sphyrna lewini) is a species of hammerhead shark, and part of the family Sphyrnidae.Originally known as Zygaena lewini, its genus name was later changed to its current name.The Greek word sphyrna translates into "hammer" in English, referring to the shape of this shark's head. The risk of extinction is higher on many hammerhead sharks because of overfishing in some countries in Asia. During the day it swims about in so-called “schools” (groups) of up to 100 animals. Scalloped Hammerhead Sharks are the most common species of hammerheads in costal regions, even appearing in shallow waters like estuaries and inlets. Still, many of the older females do have plenty of bite marks on their bodies from this process. ... Fin-tastic facts. Free rear tip does not reach origin of pectoral fins. Habitat. Scalloped Hammerhead. The hammerhead sharks are an unmistakable group of sharks that can be distinguished from all other fishes by the shape of their heads. Hammerhead Shark Hammerhead Shark – Family Sphyrnidae A hammerhead shark is any of the ten species that make up the Sphyrnidae family. Free divers can wait patiently until a hammerhead shark approaches. Hammerhead Shark Reproduction. The great hammerhead and the smooth hammerhead are the biggest with a length of 20 ft (6.1 m). Read … Scalloped hammerhead (Sphyrna lewini) – Status: Endangered Like other sharks around the world, they are under threat from bycatch in commercial fisheries as well as shark-finning, the practice of capturing sharks and removing their fins for commercial purposes. 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