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) >
Torpediniformes (Electric rays)
電鰩目 (Electric rays) >
Narcinidae (Numbfishes)
雙鰭電鰩科 (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335); atzi: Named in honor of Dr. James W. Atz, Curator Emeritus of the Department of Ichthyology, of the AMNH, in recognition of his many contributions to different aspects of ichthyology (Ref. 49866).
Eponymy: Dr James Wade Atz (1915–2013) was Curator Emeritus Vertebrate Zoology and Dean Bibliographer, Department of Ichthyology at AMNH, which he joined (1964), having been Associate Curator of the New York City Aquarium (ca: 1959–1964). [...] (Ref. 128868), visit book page.
More on authors: Carvalho & Randall.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 ? - 27 m (Ref. 49866). 熱帶; 25°N - 7°N, 58°E - 95°E (Ref. 114953)
Western Indian Ocean: Gulf of Oman and from both sides of the Bay of Bengal and Andaman Sea.
西印度洋: 阿曼灣與從孟加拉灣的兩邊。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 36.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 49866)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Dorsal coloration composed of numerous small dark brown spots, equal to or smaller than eye diameter, oval disc and tail regions and within spiracular walls, coupled with faint large blotches, fewer in number, on dorsal disc area; first dorsal fin clearly taller, and with a longer base, than second dorsal fin; preorbital snout length not as great as preoral snout length; upper and lower tooth bands subequal in width and broadly circular in shape (Ref. 49866).
背鰭顏色很多小的深褐色的斑點組成, 等於或者比眼直徑, 橢圓形體盤與尾部更小與在被結合模糊的大斑塊的噴水孔內壁裡面, 數量較少, 在背部的體盤區域上; 第一背鰭明顯地較高, 而且具有一個較長的基底, 超過第二背鰭鰭; 不像口前吻的長度一樣的大眶前骨吻的長度; 上、下齒箍幾乎相等的寬度與寬廣圓形在外形上.(參考文獻 49866)
A benthic species in shallow coastal waters (Ref. 114953). Minimum depth from Ref. 58018. Maturity size for females at ca. 31 cm TL; birth size at ca. 11 cm TL (Ref. 114953).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西印度洋: 阿曼灣與從孟加拉灣的兩邊。
de Carvalho, M.R. and J.E. Randall, 2003. Numbfishes from the Arabian Sea and surrounding gulfs, with the description of a new species from Oman (Chondrichthyes: Torpediniformes: Narcinidae). Ichthyol. Res. 50(1):59-66. (Ref. 49866)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
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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=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.3 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 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).
