分類 / Names
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) >
Etmopteridae (Lantern sharks)
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335); pseudosqualiolus: From its similarity of general body shape with squaloid sharks.
More on authors: Last, Burgess & Séret.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 668 - 1170 m (Ref. 45056). 深水域
Western Pacific: Norfolk Ridge and Lord Howe Ridge off New Caledonia.
西太平洋: 諾福克脊與羅得豪島脊外海的新加勒多尼亞。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 45.3 cm TL 雄魚/尚未辨別雌雄; (Ref. 45056); 41.4 cm TL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Body cigar-shaped; deep head conical with a short bulbous snout; preoral length 7.3-8.2 % TL. Eye almost round with a small opalescent lunate patch on upper eyelid margin. Pectoral fins small, rear tip about cornea diameter in front of D2 origin. Dorsal and ventral coloration dark; white conspicuous pineal blotch small and triangular. Caudal peduncle short (14.8-16.6% TL). Upper teeth of mature males usually with 7 cusps, others 9-11, in separated rows; central cusps greatly expanded, about 2 times longer than those adjacent. Denticles small, with a single erected, slightly curved cusps, arranged in irregular rows. Anterior branch of pelvic marking long and slender, posterior branch truncated. Precaudal marking with very long finger-like extensions reaching to central caudal fin. Monospondylous centra 46-47 (Ref. 45056).
身體雪茄-形狀的; 深的頭部錐形具有一個短的凸起吻; 口前長度 7.3-8.2% TL。 眼幾乎在上眼瞼邊緣上周圍有一個小的乳白光的新月狀的小區塊。 胸鰭小的, 後頂端大約角膜直徑在 D之前 2 起源。 背部與腹的顏色深色的; 白色的顯著松毬狀的斑塊小而三角形的。 尾柄短 (14.8-16.6% TL). 成熟雄性的上顎齒通常有 7個尖頭, 其它 9-11, 在分開的列中; 中央的尖頭非常擴大, 大約兩倍長度超過那些毗連者。 細齒小的, 具有一個單個豎立,略微彎曲的尖頭,排列成不規則的列了。 腹鰭斑紋的前面分支長且細又在後部的分支截形的。 尾前椎的斑紋具有非常延伸到中央的尾鰭的長的手指狀的延長。 Monospondylous 中心 46-47.(參考文獻 45056)
Ovoviviparous (Ref. 205).
卵胎生的.(參考文獻 205)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Distinct pairing with embrace (Ref. 205).西太平洋: 諾福克脊與羅得豪島脊外海的新加勒多尼亞。
Last, P., G.H. Burgess and B. Séret, 2002. Description of six new species of lantern-sharks of the genus Etmopterus (Squaloidea: Etmopteridae) from the Australasian region. Cybium 26(3):203-223. (Ref. 45056)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 19 June 2017
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
123201): 3.2 - 4.5, mean 3.9 °C (based on 85 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00194 - 0.00745), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.2 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (35 of 100).
