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Teleostei >
Saccopharyngiformes (Swallowers and gulpers) >
Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); boehlkei: Named for the late James E. Böhlke in recognition of his valuable contributions to the study of apodal fishes.
Eponymy: James Erwin Böhlke (1930–1982) and his wife Eugenia Louisa Böhlke née Brandt (1929–2001) were both ichthyologists who worked at the Academy of Natural Sciences of Philadelphia, where he was Curator of Ichthyology (1954–1982). [...] (Ref. 128868), visit book page.
More on authors: Bertelsen & Nielsen.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋 深海区的; 深度上下限 2500 - 5430 m (Ref. 34506). 深水域
Atlantic Ocean: the holotype was caught near Bermuda and the paratypes southwest of Madeira.
大西洋: holotype 在百慕達群島與馬得拉群島副模式西南的附近被捕捉。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 7.0 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) : 130 - 150; 臀鳍软条: 110 - 130. M. boehlkei differs from all other species of the genus by the high number of anal fin rays (110-130 vs. 42-88) and by an obtuse angle between rostral fang and frontal profile of skull. It is further distinguished by the following combination of characters: head short, snout blunt, skull length4.2-5.2% TL, rostral fang with dorsal profile slightly concave, anal fin origin below dorsal fin rays number 7-13, pectoral fin 2-3% TL, lower jaw nearly straight, and 6 lateral, subdermal spots of pigmentation (Ref. 34506).
Body shape (shape guide): eel-like.
M. boehlkei 有别于所有的其他种的本属藉由高数字臀鳍棘条 (110-130 vs.42-88) 与藉着在嘴的尖牙与头盖骨的前轮廓之间的一个圆头角。 它是进一步藉着下列的组合特徵区别: 头部短, 吻钝的, 头盖骨长度 4.2-5.2% TL, 嘴的尖牙用背面轮廓些微地凹曲, 臀鳍起源在背鳍鳍条之下数 7-13 ，胸鳍 2-3% TL ，下颌几乎是直的, 与 6个侧面又皮下颜色的斑点.(参考文献 34506)
All specimens were taken in closing nets, one between 2500 and 3500 m with a bottom depth of 4563 m and the other specimens between 10-3- m above the bottom with soundings from 2960-5430 m (Ref. 34506).
所有的标本被用闭合网采集, 在 2500 与 3500 公尺之间的一底部深度在 10-3 之间的 4563 公尺与另一个标本- 具有来自 2960-5430 公尺的测锤测得的结果在底部上面的公尺.(参考文献 34506)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
大西洋: holotype 在百慕達群島與馬得拉群島副模式西南的附近被捕捉。
Bertelsen, E. and J.G. Nielsen, 1987. The deep sea eel family Monognathidae (Pisces, Anguilliformes). Steenstrupia 13(4):141-198. (Ref. 34506)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 没有兴趣
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基于模型的估算
首选温度 (参考文献
123201): 2.5 - 2.9, mean 2.7 °C (based on 105 cells).
系统发育多样性指数 (参考文献
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 (参考文献
69278): 3.6 ±0.59 se; based on food items.
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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