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Muraena Nudivomer

Gymnothorax nudivomer (Günther 1867)

Diagnostic Description

provided by Fishbase
Large individuals; body dark yellow-brown numerous, smaller than pupil-sized spots that become small and numerous anteriorly, but large and widely spaced posteriorly (Ref. 48635). Yellow inside the mouth (Ref. 30404, 48635). This species has a relatively short, blunt snout; the larger specimens lack vomerine teeth and median intermaxillary teeth; the largest teeth are finely serrate; and jaws not arched, even in large specimens (Ref. 74922).
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Recorder
Cristina V. Garilao
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Morphology

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Dorsal spines (total): 0; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0
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Trophic Strategy

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Inhabits inner and outer reef slopes (Ref. 30404).
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Drina Sta. Iglesia
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Biology

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Mainly in oceanic locations (Ref. 48635); inhabits inner and outer reef slopes (Ref. 30404). Benthic (Ref. 58302). Mucus is toxic (Ref. 1602).
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Armi G. Torres
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Importance

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fisheries: of no interest; aquarium: commercial
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分布

provided by The Fish Database of Taiwan
分布於印度-太平洋區,西起紅海、東非,東至夏威夷群島,北至日本,南至澳洲等海域。臺灣東部、東北部及澎湖之岩礁區可見。
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臺灣魚類資料庫
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利用

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一般可利用延繩釣、手釣和籠具誘捕等漁法。外形奇特,顏色鮮艷,可供飼養展示。
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描述

provided by The Fish Database of Taiwan
體延長而呈圓柱狀,尾部側扁。頭胸部腹側的肌肉和皮膚特別鬆軟容易展開。上、下頜粗短,下頜向前突出;齒緣略呈鋸齒狀;頜齒單列,上頜前 6 對牙齒較大;鋤骨齒單列,只有三顆;大型個體的鋤骨裸露無齒。脊椎骨數133-139。體色相當鮮豔,魚體靠近頭部的部位為黃色,越近尾部末端則顏色加深,逐漸變成深褐色。體表有許多圓形或不規則形且具有深色邊緣的白色斑點;越靠近頭部,則這些白斑點愈小愈密。鰓孔深黑色;口內的皮膚為單純的鮮黃色。
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棲地

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主要棲息珊瑚礁陡坡之內、外緣的洞穴及隙縫中。以魚類為主食,偶食甲殼類。,常張開其寬闊的大口展示一種嚇人的外貌。皮膚的黏液具有毒性,其體表會分泌數種類似海百合毒素和血球凝集素等毒性物質,散發出一股奇特的臭味。遇危急狀態時,體表會大量分泌毒性黏液,甚至使其他魚類窒息。
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Gymnothorax nudivomer

provided by wikipedia EN

Gymnothorax nudivomer, the starry moray or yellowmouth moray, is a species of marine fish in the family Muraenidae.

Description

The starry moray is a large sized fish that can reach a maximum length of 180 cm, but the ones usually observed are rather smaller.[2] Its serpentine in shape body has a brown background color dotted with small white spots circled with darker brown than its background color. The size of these spots is relatively small at the head and is getting larger toward the tail. One of the characteristic point to identify this moray is the yellow color of its inside mouth. The gills aperture is brown dark.

Distribution and habitat

The starry moray is widespread throughout the Indo-Pacific area from eastern coast of Africa, Red Sea included, until Polynesia and Hawaii and from south Japan to New Caledonia.[3]

Gymnothorax nudivomer

It lives on the outer slopes of coral reefs, sitting sheltered in crevices between 3.3 and 894.3 feet (1.0 and 272.6 meters) deep, but is usually seen at depths of around 99 feet (30 meters).[4][5]

Biology

The starry moray is solitary and carnivorous, it leaves its lair at night to actively hunt its preys along the reef. It mainly feeds on fishes.

A starry moray at Aliwal Shoal

References

  1. ^ Smith, D.G.; McCosker, J.; Tighe, K. (2019). "Gymnothorax nudivomer". IUCN Red List of Threatened Species. 2019: e.T195768A2415189.
  2. ^ Lieske, E. and R. Myers, 1994. Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Harper Collins Publishers, 400 p.
  3. ^ Castle, P.H.J. and J.E. McCosker, 1986. Muraenidae. p. 165-176. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.
  4. ^ Mundy, B.C., 2005. Checklist of the fishes of the Hawaiian Archipelago. Bishop Museum Bulletins in Zoology. Bishop Mus. Bull. Zool. (6):1-704.
  5. ^ Kuiter, R.H., 1998. Photo guide to fishes of the Maldives. Atoll Editions, Victoria, Australia. 257 p.

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Gymnothorax nudivomer: Brief Summary

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Gymnothorax nudivomer, the starry moray or yellowmouth moray, is a species of marine fish in the family Muraenidae.

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Description

provided by World Register of Marine Species
Found in seaward reefs in the Red Sea at 4 m or more. Usually found in more than 30 m elsewhere. It's mucus is toxic.

Reference

Froese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023).

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Habitat

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Known from seamounts and knolls

Reference

Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.

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