Common names from other countries
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) >
Arhynchobatidae (Softnose skates)
Etymology: leviveneta: Name from latin 'laevis' meaning smooth, bald and 'venetus' for sea-colored or blue, referring to the appearance of the dorsal disc..
More on authors: Last & McEachran.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 300 - 1200 m (Ref. 58023). 深水域
Southwest Pacific: Lord Howe Rise, Challenger Plateau and northern continental slope of New Zealand south to the Clatham Rise, onto the Campbell Plateau, Pukaki Rise and Bounty Platform.
西南太平洋: Lord Howe山, 挑戰者高地與紐西蘭的北方大陸斜坡南至 Clatham 隆起,在坎貝爾高地, Pukaki 隆起與慷慨平臺之上。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 50.9 cm 雄魚/尚未辨別雌雄; (Ref. 58023)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
A small species having the following diagnostic characters: long tail, 1.2-1.3 times disc length, 2.1-2.6 times ventral head length, 4-5 times snout length; large orbit, 2.6-3.4 in preorbital snout length; tail base moderately broad, width at pelvic-fin insertions 1.9-2.7 times width at midlength; denticles confined to central disc behind eye; tail thorns in single, median row; single, well-developed preorbital and postorbital thorns; ventral disc and tail naked; rostral thorn bifurcated, pronounced, close to snout tip, distance from snout tip 3-4.3 in preorbital length; calcified rostral shaft long; alar thorns in small patch of long-based, posteromedially directed thorns flanked laterally by patch of much smaller, more posteriorly directed malar thorns; additional malar thorn patch lateral to eye, usually separate from posterior patch; upper surface bluish, ventral surface much darker bluish brown; rows of strongly contrasted, pale-edged pores on ventral surface; nuchal pore band is distinct; total pectoral radials 64-69; predorsal vertebrae 95-100; tooth rows in the upper jaw 32-43 (Ref. 58023).
一種小的種有下列的鑑別特徵: 長的尾部, 1.2-1.3 倍體盤長度, 2.1-2.6 倍頭部下面長度, 4-5 倍吻長; 大的眼窩, 2.6-3.4 在眶前骨吻的長度中; 尾部基底一般寬, 在腹鰭嵌入 1.9-2.7 的寬度倍寬度在身體中央; 細齒侷限於在眼後面的中央體盤了; 在單個中的尾部刺, 中動脈列; 單獨地, 發展良好的眶前骨與眼眶後的刺; 腹面體盤與尾部裸露的; 嘴的刺分叉, 明顯的, 在眶前骨長度中接近吻頂端 , 距離吻尖頂端 3-4.3; 變成石灰質嘴的軸了長的; 在小塊中的翼刺基底長, posteromedially 直接的側面地被小區塊側面的刺了較小, 更多朝向後面頰刺; 附加的顴骨刺小區塊側部到眼睛,通常與在後部的小區塊分開; 上表皮藍色的, 腹面多深藍色的褐色; 列的強烈地對比, 在腹面上的邊緣灰白的孔; 頸背的孔條紋是明顯的; 總計胸的動脈 64-69; 前背的脊椎骨 95-100; 在上頜 32-43 中的齒列.(參考文獻 58023)
Male paratype mature at 43.2 cm TL (Ref. 58023).
雄性副模式在 43.2 公分TL 時成熟。 (參考文獻 58023)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
西南太平洋: Lord Howe山, 挑戰者高地與紐西蘭的北方大陸斜坡南至 Clatham 隆起,在坎貝爾高地, Pukaki 隆起與慷慨平臺之上。
Last, P.R. and J.D. McEachran, 2006. New softnose skate genus Brochiraja from New Zealand (Rajidae: Arhynchobatinae) with description of four new species. N. Z. J. Mar. Freshwater Res. 40(1):65-90. (Ref. 58023)
CITES (Ref. 128078)
Not Evaluated
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±0.7 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 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).