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The whiskery shark (''Furgaleus macki'') is a species of houndshark, belonging to the family Triakidae, and the only member of its genus. This common shark inhabits the Australian continental shelf from Western Australia to the Bass Strait, to a depth of . It is demersal in habits and prefers rocky and vegetated habitats. Stout-bodied and almost "humpbacked" in form, the whiskery shark can be distinguished from all other members of its family by the presence of long nasal barbels. Its two moderately large dorsal fins are roughly equal in size. It is brownish gray above and lighter below, with a pattern of darker saddles and blotches in younger sharks. This species reaches in length. The diet of the whiskery shark consists almost entirely of octopuses. It is viviparous; females bear litters of 4–28 pups every other year from August to October, after a gestation period of 7–9 months. This harmless shark is utilized for its meat, being one of the species marketed as "flake" in Australia. It is mainly caught by a Western Australian commercial gillnet fishery. Its numbers declined significantly from overfishing in the 1970s and early 1980s, leading to the introduction of new management measures in the mid-1980s. Since then, strict fishery management has kept the whiskery shark population stable or increasing, resulting in its listing under Least Concern by the International Union for Conservation of Nature (IUCN). ==Taxonomy and phylogeny== }} |2=''Triakis megalopterus'' + ''Scylliogaleus'' + ''Mustelus'' }} }} }} Australian ichthyologist Gilbert Percy Whitley described the whiskery shark as a new genus and species, ''Fur macki'', in a 1943 issue of the scientific journal ''Australian Zoologist''.〔 As the name ''Fur'' was already in use for the genus ''Fur'' of true flies, in 1951 Whitley replaced it with ''Furgaleus''.〔 The type specimen is a long immature male caught off Mordialloc in Victoria, Australia.〔 Other common names for the whiskery shark include Mack's whiskery shark, reef shark, shakey shark, and sundowner.〔 Sharks from the western portion of this species' range were once thought to be a separate species, ''F. ventralis'', until comparative studies by Leonard Compagno found that they were not significantly different from ''F. macki''.〔 Based on morphology, Leonard Compagno grouped ''Furgaleus'' with ''Hemitriakis'', ''Iago'', and ''Gogolia'' as the tribe Iagini within the subfamily Galeorhininae of the family Triakidae.〔 A 2006 phylogenetic study by J. Andrés López and colleagues, based on four protein-coding gene sequences, affirmed that ''Furgaleus'' and ''Hemitriakis'' are sister taxa; the study was equivocal regarding the position of ''Iago'' and did not include ''Gogolia''.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Whiskery shark」の詳細全文を読む スポンサード リンク
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