分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Rajiformes (Skates and rays)
鰩目 (Skates and rays) >
Rajidae (Skates)
鰩科 (Skates)
Etymology: Dactylobatus: Greek, daktyleys, -eos = a kind of grey mullet + Greek, batis = a kind of ray (Ref. 45335); armatus: dáctylos, Greek, means finger or fin-ray; bátis mean ray. Latin armatus means armed. .
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 300 - 900 m (Ref. 80663), usually 300 - 700 m (Ref. 80663). 深水域; 35°N - 35°S, 30°W - 98°W
Western Central Atlantic: South Carolina, USA to the Gulf of Mexico and along Central America to Venezuela. Also found on middle continental slope off southern Brazil.
中西大西洋: 美國南卡羅萊那州到墨西哥灣。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 32.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 557)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Narrow spatula-shaped lobe from margin of each pectoral. Upper surface ashy gray. Lower surface yellowish white, clouded with mouse gray (Ref. 6902). Characteristic spines on underside of frontal margin of disc.
來自每個胸鰭的邊緣的狹窄的鏟狀葉。 上表皮灰色的。 下表面黃白色, 有鼠灰色雲彩.(參考文獻 6902)
Moderately deep water species (Ref. 6902). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
中等深度水域種.(參考文獻 6902) 卵生的.(參考文獻 50449) 卵在貝殼上有像觸角一樣的突出。 (參考文獻 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).中西大西洋: 美國南卡羅萊那州到墨西哥灣。
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
