分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Stomiiformes (Lightfishes and dragonfishes)
巨口魚目 (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes)
巨口魚科 (Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); medusa: Named for its numerous filaments arising from the distal bulb; noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海區的; 深度上下限 0 - 710 m (Ref. 11333). 深水域
North Pacific.
北太平洋。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 15.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 11333); 15.2 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 24; 臀鰭軟條: 38; 脊椎骨: 68. Two terminal bulbs separated by an interspace, 1.4-3.6 times the length of distal bulb. Barbel length mostly 36-65% SL. Terminal filaments 7-10, arising together from distal bulb or from a short stem; all prominent bulblets of various sizes and with side branches distally; 1 filament a little thicker than others and usually forked. Pigment in filament axes variably present or absent. Distal bulb small, ovoid, usually with an abruptly narrowed distal end, 1.5- 3 times proximal-bulb length, which is very small. Axis of stem and between bulbs usually pigmented, variably light or dark, sometimes unpigmented. A black spot almost always present at proximal end of distal bulb; usually partially capping base of bulb. External chevron-shaped or roundish striated areas on stem pigmented or not. Middorsal paired spots between occiput and dorsal-fin origin 8, sometimes 7 (Ref. 11333).
被一個間隙分開的二個末端的球莖,1.4-3.6 倍於末稍球莖的長度。 觸鬚長度大部份 36-65% SL。 末端的絲狀突起 7-10, 一起從末稍球莖或矮莖出現; 各種不同大小的所有突出球莖與具有支流末梢部地; 1個絲狀突起稍微比其它更厚而且通常分岔了。 在絲狀突起軸的有顏色易變存在或者不存在。 末稍球莖小的, 卵形體,通常有一個突然地狹窄的末梢部的末端,1.5- 3 倍近端-球莖長度, 是非常小的。 莖的軸而且在球莖之間通常有顏色, 易變淡或深色的, 有時沒有顏色。 一個黑色的斑點幾乎總是出現在末稍球莖的近側端; 通常部份地加蓋於球莖的基底。 在莖上的外部的鋸齒形或圓的有條紋的區域有顏色或沒有顏色的。 在後腦部與背鰭起點 8 之間的背面中央的成對斑點, 有時 7.(參考文獻 11333)
Mesopelagic (Ref. 58302).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
北太平洋。
Gibbs, R.H. Jr., T.A. Clarke and J.R. Gomon, 1983. Taxonomy and distribution of the stomioid fish genus Eustomias (Melanostomiidae), I: subgenus Nominostomias. Smithson. Contrib. Zool. 380:139 p. (Ref. 11333)
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Estimates based on models
Preferred temperature (Ref.
123201): 5.8 - 15.2, mean 8.9 °C (based on 6 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00117 - 0.00783), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.3 ±0.8 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
