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The dwarf lanternshark (Etmopterus perryi) is a species of dogfish shark in the family Etmopteridae and is the smallest shark in the world, reaching a maximum known length of 20 cm (8 in). It is known to be present only on the upper continental slopes off Colombia and Venezuela , at a depth of 283–439 m (928–1,440 ft).
The first shark-like chondrichthyans appeared in the oceans 400 million years ago, [1] developing into the crown group of sharks by the Early Jurassic. [2] Listed below are extant species of shark. Sharks are spread across 512 described and 23 undescribed species in eight orders. The families and genera within the orders are listed in ...
The megamouth shark (Megachasma pelagios) is a species of deepwater shark. Rarely seen by humans, it measures around 5.2 m (17 ft) long and is the smallest of the three extant filter-feeding sharks alongside the relatively larger whale shark and basking shark .
Sharks range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species that is only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (40 ft) in length. [4]
Pygmy ribbontail catshark (Eridacnis radcliffei) [4] It is known to be one of the smallest sharks within its species, with a maximum length around 257 mm. It is distributed in the waters surrounding the Philippines, along with the Indo-West Pacific Ocean.
They are found only in the shallow waters of the western Pacific. They are relatively small sharks, with the largest species reaching no more than 91 cm (2.99 ft) in adult length. [12] Rhincodontidae: Whale sharks: 1 1 The whale shark is the largest extant fish species, growing over 12 m (40 ft) long and weighing over 20 tonnes (45,000 lb). It ...
The pelagic thresher is the smallest of the thresher sharks, typically 3 m (10 ft) in length and 69.5 kg (153.2 lb) in weight, and usually not exceeding 3.3 m (11 ft) and 88.4 kg (195 lb). [5] Males and females attain known maximum lengths of 3.5 m (11 ft) and 3.8 m (12 ft), respectively. [ 9 ]
The largest species, called simply the nurse shark Ginglymostoma cirratum, may reach a length of 4.3 m (14 ft); the tawny nurse shark Nebrius ferrugineus is somewhat smaller at 3.2 m (10 ft), and the short-tail nurse shark Pseudoginglymostoma brevicaudatum is by far the smallest at just 75 cm (2.46 ft) in length. The first of the three species ...