分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Somniosidae (Sleeper sharks)
Etymology: Scymnodon: scymnus, an ancient name for some kind of shark, derived from a Greek word meaning young animal, cub or whelp; odon (Gr.), tooth, referring to large, triangular cutting teeth on lower jaw of S. ringens (See ETYFish); ringens: Latin for gaping, referring to its large, open mouth (“ore amplo, hiante”) (See ETYFish).
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 深海區的; 深度上下限 200 - 1600 m (Ref. 247), usually 550 - 1450 m (Ref. 10717). 深水域; 61°N - 54°S, 18°W - 172°W
Eastern Atlantic: along the slope from Scotland to Spain, Portugal, Senegal. Southwest Pacific: New Zealand (Ref. 26346).
東大西洋: 沿著蘇格蘭到西班牙的斜坡，葡萄牙，塞內加爾。 西南太平洋: 紐西蘭.(參考文獻 26346)
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 110 cm TL 雄魚/尚未辨別雌雄; (Ref. 247)
臀棘: 0. Black in color; small dorsal fin spines; short snout; small lanceolate teeth without cusplets in upper jaw and huge high, knife-cusped cutting teeth in lower jaw; mouth very wide and broadly arched; caudal fin with weak subterminal notch and no lower lobe (Ref. 247).
Body shape (shape guide): elongated.
黑色的; 小的背鰭棘; 短的吻; 小的矛尖形的在上頜中牙齒沒有 cusplets 與非常高的, 在下頜中的尖端刀狀的銳利齒; 嘴非常寬與寬廣弓形; 尾鰭有弱的接近端位的凹槽與沒有下葉。 (參考文獻 247)
A rare species (Ref. 26346) inhabiting continental slopes (Ref. 247). Usually mesopelagic although taken most often near the bottom (Ref. 10717). Its razor-edged lower teeth is used to attack and dismember large prey (Ref. 247). Ovoviviparous (Ref. 205). Utilized dried salted for human consumption and for fishmeal (Ref. 247).
一個稀有的種 (參考文獻 26346) 居住於大陸斜坡.(參考文獻 247) 通常中層帶雖然在底部的附近最時常採.(參考文獻 10717) 它的剃刀口般下顎齒被用來攻擊而且肢解大的獵物。 (參考文獻 247) 卵胎生的.(參考文獻 205) 乾燥鹽醃利用供人類消費與用於魚粉.(參考文獻 247)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Probably ovoviviparous (Ref. 247). Distinct pairing with embrace (Ref. 205).東大西洋: 沿著蘇格蘭到西班牙的斜坡，葡萄牙，塞內加爾。 西南太平洋: 紐西蘭.(參考文獻 26346)
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
易受傷害 (VU) (A2bd); Date assessed: 21 November 2019
人類使用
漁業: 低經濟
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基於模型的估計
首選溫度 (參考文獻
123201): 4.2 - 11.4, mean 7.7 °C (based on 164 cells).
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00180 - 0.00881), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (參考文獻
69278): 3.9 ±0.7 se; based on diet studies.
回復力 (參考文獻
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
釣魚的脆弱性 (Ref.
59153): High to very high vulnerability (66 of 100).
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氣候脆弱性 (Ref.
125649): Moderate to high vulnerability (46 of 100).
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營養素 (Ref.
124155): Calcium = 7.04 [1.09, 38.34] mg/100g; Iron = 0.23 [0.05, 0.90] mg/100g; Protein = 19.9 [17.3, 22.4] %; Omega3 = 0.139 [0.040, 0.507] g/100g; Selenium = 14.7 [3.5, 55.1] μg/100g; VitaminA = 28 [3, 232] μg/100g; Zinc = 0.432 [0.179, 1.137] mg/100g (wet weight);
