分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Saccopharyngiformes (Swallowers and gulpers) >
Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); nigeli: Named after Nigel Merrett who has provided the suthors with several specimens of Monognathus and was very helpful during their revisionary work..
More on authors: Bertelsen & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海区的; 深度上下限 1500 - 3910 m (Ref. 34506). 深水域
Northeast Atlantic.
東北大西洋。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 5.7 cm TL 雄鱼/尚未辨别雌雄; (Ref. 34506)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 82 - 95; 臀鳍软条: 56 - 60. M. nigeli differs from the other species of the genus by the following combination of characters: head long with elongate, pointed snout and almost straight jaw, skull length 6.0-7.0% TL, rostral fang strongly hooked with distal part in a neatly right angle to dorsal profile of skull, predorsal length 14.5-18.5% TL, anterior anal fin ray below dorsal fin ray nos. 15-21, and 5 lateral, subdermal spots of pigmentation (Ref. 34506).
M. nigeli 在组合特徵之后有别于本属的另一个种藉由: 头部长的有细长的, 尖的吻而几乎直的颌，头盖骨长度 6.0-7.0% TL, 嘴的尖牙强烈地以末梢部的部份钩住在一整洁地对头盖骨，前背的长度 14.5-18.5% TL 的背面轮廓的直角, 在背鳍鳍条不之下的前面臀鳍鳍条。 15-21, 与 5个侧面又皮下颜色的斑点.(参考文献 34506)
Four "Discovery" specimens were taken in closing nets between 1510 and 3910 m depth, three of these 1500-2000 m, and one 23 m above the bottom. The "Vityaz" specimen was taken between 3000 m and the surface (Ref. 34506).
四项 " 发现 " 标本在 1510 与 3910 公尺深之间被用闭合网采集, 其中的三个 1500-2000 公尺 , 与一个 23个公尺上方底部。 " Vityaz" 标本在 3000 公尺与表面之间采集.(参考文献 34506)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
東北大西洋。
Bertelsen, E. and J.G. Nielsen, 1987. The deep sea eel family Monognathidae (Pisces, Anguilliformes). Steenstrupia, 13(4):141-198. (Ref. 34506)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
