Hypnos monopterygius, Coffin ray

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Hypnos monopterygius (Shaw 1795)

Coffin ray
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Hypnos monopterygius   AquaMaps   Data sources: GBIF OBIS
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Image of Hypnos monopterygius (Coffin ray)
Hypnos monopterygius
Picture by Vogt, A.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Torpediniformes (Electric rays) > Hypnidae (Coffin rays)
Etymology: Hypnos: Greek, hypnos = sleep (Ref. 45335).  More on author: Shaw.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 海洋 礁區魚類; 深度上下限 0 - 240 m (Ref. 9710).   亞熱帶的; 18°S - 38°S, 112°E - 155°E (Ref. 114953)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Indo-West Pacific: endemic to Australia.
印度-西太平洋: 澳洲的特有種。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm ?, range 24 - ? cm
Max length : 70.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2272); common length : 40.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6871)

生物學特性     字彙 (例如 epibenthic)

Occurs inshore and offshore, ranging from the intertidal to 240 m depth (Ref. 9910, 12951). Found buried on sand and mud bottoms; sometimes found stranded out of water by the tide but is capable of surviving for hours (Ref. 9910). Feeds on crabs, worms, and fishes. It was reported that larger fishes, similar size to themselves have been found in the stomachs of Coffin rays, ingested whole through the large gape (Ref. 114953). Ovoviviparous (Ref. 50449). Maximum length probably to 92 cm TL (Ref. 9910). Both sexes mature at 40-48 cm TL; born at ca. 8-11 cm TL (Ref. 114953). A slow-moving species which uses its electric organs to stun prey. Also stuns people when accidentally stepped upon or handled (Ref. 9910).

生活於近海與被範圍從潮間帶到 240 公尺深的外海.(參考文獻 9910,12951) 發現埋藏於沙與泥底部; 有時發現擱淺的離開水面被潮水但是能夠被存活長達數小時之久。 (參考文獻 9910) 吃螃蟹,蠕蟲與魚。 卵胎生的.(參考文獻 50449) 使用它的發電器打昏獵物的一個緩慢移動的種。 當偶然地踏到或摸到,也打昏人。 (參考文獻 9910) 可能對 92 公分TL 的最大長度.(參考文獻 9910)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Size at birth 8 to 11 cm TL (Ref. 9910).印度-西太平洋: 澳洲的特有種。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Carvalho, Marcelo | 合作者

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)

IUCN 瀕危狀態 (Ref. 123251)

  無危 (LC) ; Date assessed: 24 February 2015

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

另外地 (Ref. 10011)





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Estimates based on models

Preferred temperature (Ref. 115969): 15.3 - 22.2, mean 17.4 °C (based on 134 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.7   ±0.57 se; based on food items.
回復力 (Ref. 120179):  .
瀕危性 (Ref. 59153):  Moderate to high vulnerability (48 of 100) .