分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (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
生态学
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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 45.3 cm TL 雄鱼/尚未辨别雌雄; (Ref. 45056); 41.4 cm TL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
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).
身体雪茄-形状的; 深的头部锥形具有一个短的凸起吻; 口前长度 7.3-8.2% TL。 眼几乎在上眼睑边缘上周围有一个小的乳白光的新月状的小区块。 胸鳍小的, 后顶端大约角膜直径在 D之前 2 起源。 背部与腹的颜色深色的; 白色的显着松球状的斑块小而三角形的。 尾柄短 (14.8-16.6% TL). 成熟雄性的上颚齿通常有 7个尖头, 其它 9-11, 在分开的列中; 中央的尖头非常扩大, 大约两倍长度超过那些毗连者。 细齿小的, 具有一个单个竖立,略微弯曲的尖头,排列成不规则的列了。 腹鳍斑纹的前面分支长且细又在后部的分支截形的。 尾前椎的斑纹具有非常延伸到中央的尾鳍的长的手指状的延长。 Monospondylous 中心 46-47.(参考文献 45056)
Ovoviviparous (Ref. 205).
卵胎生的.(参考文献 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
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)
人类利用
渔业: 没有兴趣
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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 (0.00191 - 0.00758), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.2 ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (35 of 100).
