分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gadiformes (Cods)
鱈形目 (Cods) >
Macrouridae (Grenadiers or rattails)
鼠尾鱈科 (Grenadiers or rattails)
Etymology: Hymenocephalus: Named for its transparent membrane-like head covering (‘‘hymen head’’) and fragile nature of head bones (Ref. 100825); iwamotoi: Named for Tomio Iwamoto, San Francisco, U.S.A..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 底中水層性; 深度上下限 ? - 242 m (Ref. 98298).
Eastern Indian Ocean: Western Australia (Browse Island).
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 10.3 cm TL 雄魚/尚未辨別雌雄; (Ref. 98298)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 2; 背的軟條 (總數) : 6 - 7. This small species (<10.5 cm TL) is distinguished by the following characters: pelvic fin rays 8 (7-9); pectoral 12-13; D1II,6-7; gill rakers 17-20; long barbel 40-46% HL, reaching vertical through rear end of orbit; orbit 35-38% HL; rounded snout, barely protruding, short 15-19% HL; posterior luminescent lens round, ventral striae extending to near periproct: compressed otolith, otholith length to height (OL:OH) is 0.95; colliculi separated, small; pseudocolliculum small, total colliculum length to pseudocolliculum length (TCL:PCL), 1.8-2.0 (Ref. 98298).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Schwarzhans, W., 2014. Head and otolith morphology of the genera Hymenocephalus, Hymenogadus and Spicomacrurus (Macrouridae), with the description of three new species. Zootaxa 3888(1):1-73. (Ref. 98298)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00111 - 0.00431), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).