分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Anguilliformes (Eels and morays)
鰻鱺目 (Eels and morays) >
Synaphobranchidae (Cutthroat eels)
通鰓鰻科 (Cutthroat eels) > Ilyophinae
Etymology: Dysomma: Greek, dys, dyo = two + Greek, omma = eye; longirostrum: Specific name refers to its long snout..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 100 - 150 m (Ref. 39632). 溫帶
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri
Western Pacific: Taiwan and New Caledonia.
西北太平洋: 台灣。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 28.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 106136)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
脊椎骨: 130. This species is characterized by the following: with pectoral fin; origin of dorsal fin above tip of pectoral fin, predorsal length 17.9-18.6% TL; without intermaxillary teeth; snout very long, its length 25.7-32.1% HL; jaw long and slender, upper jaw length 42.0-52.1% HL; anus posterior, far behind pectoral fin, preanal length 24.0-24.3% TL; trunk is moderately long, trunk length 9.7-10.3% TL; upper jaw with multiple rows of teeth on upper jaw; multiple rows of small teeth on lower jaw, those on inner row larger than the rest; vomer with 5 compound teeth; head pores: SO 5, IO 8 (2 between nostrils, 2 below eye, 4 behind eye), M 7, POP 2, AD 1, ST 0, F 1; lateral-line pores: predorsal 11, prepectoral 3-6, preanal 20, total ca. 77 or ca. 96, the last at 2/3 HL before caudal fin; MVF 14-24-130 (holotype only); colour of body uniformly brown when preserved (Ref. 39632, 106136).
身體沒有鱗片。 長的吻, TL 中的 4.6。 長的﹐強的﹐和細長的顎; 上頜長度 8.2% 的 TL; 上頜比下頜長。 腹側的鰓縫, 在胸鰭基底之下。 肛門遙遠地向前, 在胸鰭頂端後面的一口裂長度細的。 側線幾乎完成, 長度 95.6% 的 TL, 具有一個連接每一其他的成對側線孔的管狀的凹槽。 頭部側線孔的數字: 眶下的 8; 眶上的 5; 鰓顎前的 9.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
西北太平洋: 台灣。
Chen, Y.-Y. and H.-K. Mok, 2001. A new synaphobranchid eel, Dysomma longirostrum (Anguilliformes: Synaphobranchidae), from the northeastern coast of Taiwan. Zool. Stud. 40(2):79-83. (Ref. 39632)
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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).
營養階層 (Ref.
69278): 3.7 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
