Hemiscyllium halmahera

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Hemiscyllium halmahera
Hemiscyllium halmahera.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Orectolobiformes
Family: Hemiscylliidae
Genus: Hemiscyllium
Species:
H. halmahera
Binomial name
Hemiscyllium halmahera
Halmahera Epaulette Shark Range.png
Known range of the Halmahera epaulette shark (in blue)

Hemiscyllium halmahera, or the Halmahera epaulette shark, is a species of bamboo shark from Indonesia. This species is described from two specimens collected near Ternate island in 2013, off the coast of larger Halmahera island. This species is most similar to Hemiscyllium galei , found in West Papua, but looks strikingly different in its pattern of spots. While H. galei has seven large, dark spots on each side of its body, H. halmahera has a brown color with clusters of brown or white spots in polygon configurations all over its body. [2] These small sharks are like other bamboo sharks, in that they use their pectoral fins to "walk" along the ocean floor. [3]

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<span class="mw-page-title-main">Hemiscylliidae</span> Family of sharks

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The epaulette shark is a species of longtailed carpet shark, family Hemiscylliidae, found in shallow, tropical waters off Australia and New Guinea. The common name of this shark comes from the very large, white-margined black spot behind each pectoral fin, which are reminiscent of military epaulettes. A small species usually under 1 m (3.3 ft) long, the epaulette shark has a slender body with a short head and broad, paddle-shaped paired fins. The caudal peduncle comprises over half the shark's length. Adults are light brown above, with scattered darker spots and indistinct saddles.

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Hemiscyllium is a genus of sharks in the family Hemiscylliidae.

<i>Hemiscyllium galei</i> Species of shark

Hemiscyllium galei, the Cenderawasih epaulette shark, is a species of bamboo shark in the family Hemiscylliidae. Together with H. henryi, it was only scientifically described in 2008 by Gerald R. Allen and Mark V. Erdmann. At present, H. galei is only known from depths of 2 to 4 metres at reefs in the Cenderawasih Bay in West Papua, Indonesia. The largest known specimen was 56.8 centimetres (22.4 in) long. It can be separated from its relatives by the combination of seven relatively large dark spots along the side of the body, white markings on the edge of its dark dorsal saddles and other scattered white spots on the upper side.

The Triton epaulette shark is a species of bamboo shark in the genus Hemiscyllium, that is composed of nine morphologically similar, yet distinct sharks that are geographically restricted to New Guinea and northern Australia. Hemiscylliidae are small nocturnal sharks aptly named "walking sharks" who exhibit a "crawling" movement while foraging on the ocean floor for fish and benthic invertebrates.

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The Leopard Epaulette Shark, also known as the Milne Bay Epaulette Shark and Michael's Epaulette Shark, is a species of bamboo shark in the genus Hemiscyllium. It is a tropical shark known from the shallow ocean in the Milne Bay region of eastern Papua New Guinea. The epaulette sharks of this region have long been confused with the Indonesian Speckled Catpetshark, and it was only in 2010 that H. michaeli was described as a separate species by Gerald R. Allen and Christine L. Dudgeon. It can reach a maximum length of 82 cm. Confusingly, some books with illustrations and photos labelled as H. freycineti actually show H. michaeli.

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References

  1. VanderWright, W.J.; Allen, G.R.; Derrick, D.; Dudgeon, C.L.; Erdmann, M.V.; Sianipar, A. (2021). "Hemiscyllium halmahera (amended version of 2020 assessment)". IUCN Red List of Threatened Species . 2021: e.T176486052A198885632. doi: 10.2305/IUCN.UK.2021-2.RLTS.T176486052A198885632.en . Retrieved 18 November 2021.
  2. 1 2 Allen, G.R.; Erdmann, M.V.; Dudgeon, C.L. (2013), "Hemiscyllium halmahera, a new species of Bamboo Shark (Hemiscylliidae) from Indonesia.", Aqua, International Journal of Ichthyology, 19 (3): 123–136
  3. "Hemiscyllium halmahera: New Species of 'Walking' Shark from Indonesia", sci-news.com, August 25, 2013