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Hardnose shark
The hardnose shark (''Carcharhinus macloti'') is a species of requiem shark, in the family Carcharhinidae, so named because of the heavily calcified cartilages in its snout. A small bronze-coloured shark reaching a length of , it has a slender body and a long, pointed snout. Its two modestly sized dorsal fins have distinctively elongated rear tips. The hardnose shark is widely distributed in the western Indo-Pacific, from Kenya to southern China and northern Australia. It inhabits warm, shallow waters close to shore.
Common and gregarious, the hardnose shark is a predator of bony fishes, cephalopods, and crustaceans. This species is viviparous, with the growing embryos sustained to term via a placental connection to their mother. Females have a biennial reproductive cycle and bear litters of one or two pups after a twelve-month gestation period. The hardnose shark is fished for meat throughout its range and, given its low reproductive rate, the International Union for Conservation of Nature (IUCN) has listed it as Near Threatened.
==Taxonomy==
The hardnose shark was described by German biologists Johannes Müller and Jakob Henle in their 1839 ''Systematische Beschreibung der Plagiostomen''. They named it ''Carcharias (Hypoprion) macloti'' in honour of Heinrich Christian Macklot, who collected the type specimen from New Guinea.〔 In 1862, American ichthyologist Theodore Gill elevated ''Hypoprion'' to the rank of full genus, with ''C. macloti'' as the type species. In 1985, Jack Garrick synonymised ''Hypoprion'' with ''Carcharhinus''.〔 This species may also be called Maclot's shark.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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