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SmoothBack Angel Shark

Natal Shyshark

The Natal Shyshark, eastern shyshark, or happy chappie,[2] (Haploblepharus kistnasamyi) is a species of catshark, belonging to the family Scyliorhinidae. It was once regarded as the "Natal" form of the Puffadder Shyshark (H. edwardsii). This shark is endemic to a small area off South Africa from the Western Cape to KwaZulu-Natal. It is found close to the coast, from the surf zone to a depth of 30 m (98 ft), and has benthic habits. Reaching 50 cm (20 in) in length, the Natal Shyshark is similar to the puffadder Shyshark in appearance but has a stockier body, less flattened head, a compressed caudal peduncle, and a different color pattern. Rare and under threat from habitat degradation and commercial fishing, it has been assessed as Critically Endangered by the International Union for Conservation of Nature (IUCN).

Pondicherry Shark

The Pondicherry Shark (Carcharhinus hemiodon) is an extremely rare species of requiem shark, in the family Carcharhinidae. A small and stocky gray shark, it grows not much longer than 1 m (3.3 ft), and it has a fairly long, pointed snout. This species can be identified by the shape of its upper teeth, which are strongly serrated near the base and smooth-edged near the tip, and by its first dorsal fin, which is large with a long free rear tip. Furthermore, this shark has prominent black tips on its pectoral fins, second dorsal fin, and caudal fin lower lobe.

The Pondicherry shark was once found throughout Indo-Pacific coastal waters from the Gulf of Oman to New Guinea, and is known to enter fresh water. Currently, the only known sightings of this species since the 1980s are in rivers in Sri Lanka. Fewer than 20 specimens are available for study, and most aspects of its natural history are unknown. It probably feeds on bony fishescephalopods, and crustaceans, and gives birth to live young with the embryos forming a placental connection to their mother. The International Union for Conservation of Nature(IUCN) has listed the Pondicherry shark as Critically Endangered. It is probably threatened by intense and escalating fishing pressure throughout its range. The shark is among the 25 “most wanted lost” species that are the focus of Global Wildlife Conservation’s “Search for Lost Species” initiative. [2]

Angel Shark

The AngelSharks are a group of sharks in the genus Squatina in the family Squatinidae, which are unusual in having flattened bodies and broad pectoral fins that give them a strong resemblance to rays. This genus is the only one in its family and order Squatiniformes. They occur worldwide in temperate and tropical seas. Most species inhabit shallow temperate or tropical seas, but a few species inhabits deeper water, down to 1,300 m (4,300 ft).[2] Angel sharks are sometimes called monkfish, although this name is also applied to members of the genus Lophius.

Smoothback Angel Shark

The Smoothback Angelshark (Squatina oculata) is an Angelshark of the family Squatinidae found in the eastern Atlantic between latitudes 47°N and 28°S. Its length is up to 1.6 metre.

Reproduction is ovoviviparous.

It is fished for off the African coast, and is depleted in the Mediterranean.

Sawback Angelshark

The Sawback Angelshark (Squatina aculeata) is an angelshark of the family Squatinidae.

Striped Smooth-Hound Shark

The Striped Smooth-Hound (Mustelus fasciatus) is a houndshark of the family Triakidae, found on the continental shelves of the subtropical southwest Atlantic from southern Brazil to northern Argentina between latitudes 30° S and 47° S, from the surface to 250 m. It can grow up to a length of 1.5 m. The reproduction of this shark is Ovoviviparous, with the length at birth up to 39 cm.

Daggernose Shark

The Daggernose Shark (Isogomphodon oxyrhynchus) is a little-known species of requiem shark, in the family Carcharhinidae, and the only extant member of its genus. It inhabits shallow tropical waters off northeastern South America, from Trinidad to northern Brazil, favoring muddy habitats such as mangrovesestuaries, and river mouths, though it is intolerant of fresh water. A relatively small shark typically reaching 1.5 m (4.9 ft) in length, the daggernose shark is unmistakable for its elongated, flattened, and pointed snout, tiny eyes, and large paddle-shaped pectoral fins.

Daggernose sharks are predators of small schooling fishes. Its reproduction is viviparous, with females give birth to 2–8 pups every other year during the rainy season; this species is capable of shifting the timing of its reproductive cycle by several months in response to the environment. Harmless to humans, the daggernose shark is caught for food and as bycatch in artisanal and commercial fisheries. Limited in range and slow-reproducing, it has been assessed as Critically Endangered by International Union for Conservation of Nature in light of a steep population decline in recent years. The current population is believed to be extremely low, with possibly no more than 250 individuals in existence [2]. Indeed, it may even be in reproductive collapse, in which case it will likely become extinct in the near future.[3]

Ganges Shark

The Ganges Shark (Glyphis gangeticus) is a critically endangered species of requiem shark found in the Ganges River (Padma River) and the Brahmaputra River of Bangladesh and India. It is often confused with the more common bull shark (Carcharhinus leucas), which also inhabits the Ganges River and is sometimes incorrectly referred to as the Ganges shark.

New Guinea River Shark

The Northern River Shark or New Guinea River Shark (Glyphis garricki) is a species of requiem shark, in the family Carcharhinidae found in scattered tidal rivers and associated coastal waters in northern Australia and in Papua New Guinea. This species inhabits areas with poor visibility, soft bottoms, and large tides, with immature sharks ranging into fresh and brackish water. It is similar to other river sharks in having a stocky grey body with a high back, tiny eyes, and broad fins. It measures up to 2.5 m (8.2 ft) long.

Northern river sharks are likely piscivorous. This species is viviparous, with females bearing litters of 9 young possibly every other year before the wet season. Very rare and facing threats from commercial and recreational fishing, and perhaps also habitat degradation, this species has been assessed as Critically Endangered by the International Union for Conservation of Nature.

Irrawaddy River Shark

Glyphis Siamensis (Irrawaddy River Shark) is a species of requiem shark, belonging to the family Carcharhinidae, known only from a single museum specimen originally caught at the mouth of the Irrawaddy River in Myanmar. A plain gray, thick-bodied shark with a short rounded snout, tiny eyes, and broad first dorsal fin, the Irrawaddy river shark is difficult to distinguish from other members of its genus without anatomical examination. Virtually nothing is known of its natural history; it is thought to be a fish-eater with a viviparous mode of reproduction. The International Union for Conservation of Nature (IUCN) has assessed this species as Critically Endangered, as its distribution is extremely limited and suffers heavy fishing pressure and habitat degradation.

Genetic evidence has shown that both the Borneo river shark (G. fowlerae) and Irrawaddy river shark should be regarded as synonyms of the Ganges shark (G. gangeticus).[2]

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Natal Shyshark
Pondicherry Shark
Angel Shark
Sawback Angelshark
Striped Smooth Hound Shark
Daggernose Shark
Ganges Shark
NewGuinea River Shark
Irraddy River Shark

Information From Wikipedia

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