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The grey reef shark or gray reef shark (Carcharhinus amblyrhynchos, sometimes misspelled amblyrhynchus or amblyrhinchos) [2] is a species of requiem shark, in the family Carcharhinidae. One of the most common reef sharks in the Indo-Pacific , it is found as far east as Easter Island and as far west as South Africa .
Shark teeth are strong and made of enamel. Many sharks have 3 rows of teeth. These teeth are embedded in the gums, not the jaw. [10] Sharks are born with teeth that are constantly being replaced. Teeth are replaced every two weeks, approximately. [10] The shape of the teeth determine the diet of the shark.
This article lists several species of reef-associated sharks which are known by the common name reef sharks. In the Indian and Pacific Oceans: Blacktip reef shark; Grey reef shark; Whitetip reef shark; In the Atlantic and Pacific Oceans: Galapagos shark; In the Atlantic Ocean: Caribbean reef shark
The common name requiem shark may be related to the French word for shark, requin, which is itself of disputed etymology.One derivation of the latter is from Latin requiem ("rest"), which would thereby create a cyclic etymology (requiem-requin-requiem), but other sources derive it from the Old French verb reschignier ("to grimace while baring teeth").
The Galapagos shark can be distinguished from the dusky shark in having taller first and second dorsal fins and larger teeth, and it can be distinguished from the grey reef shark in having a less robust body and less pointed first dorsal fin tip. However, these characters can be difficult to discern in the field.
Otodus megalodon teeth are the largest of any shark, extinct or living, and are among the most sought after types of shark teeth in the world. This shark lived during the late Oligocene epoch and Neogene period, about 28 to 1.5 million years ago, and ranged to a maximum length of 60 ft. [ 13 ] The smallest teeth are only 1.2 cm (0.5 in) in ...
Chaenogaleus macrostoma (Bleeker, 1852) (hook-tooth shark) Genus Hemigaleus Bleeker, 1852. Hemigaleus australiensis W. T. White, Last & L. J. V. Compagno, 2005 (Australian weasel shark) Hemigaleus microstoma Bleeker, 1852 (sickle-fin weasel shark) Genus Hemipristis Agassiz, 1843. Hemipristis elongata (Klunzinger, 1871) (snaggle-tooth shark)
The tooth shape and coloration of this species varies significantly with age and between geographical regions, which caused much taxonomic confusion. [2] Other common names include black-tipped shark, great blacktip shark, inkytail shark, large blacktip shark, long-nose grey shark, longnose grey whaler, and smoothfang shark. [4]
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