分類 / 名稱
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: Notoraja: Greek, noton = back + Latin, raja = fish, Raja sp. (Ref. 45335); longiventralis: Name from Latin 'longi' for long and 'ventralis'; referring to the very long anterior lobe of the pelvic fin.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 深海區的; 深度上下限 660 - 953 m (Ref. 91035). ; 14°S - 20°S, 166°E - 178°W (Ref. 114953)
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Western Pacific: Fiji and Vanuatu.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 43.4 cm TL 雄魚/尚未辨別雌雄; (Ref. 91035)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species (probably of medium size) is distinguished by the following set of characters: presence of a single rudimentary preorbital thorn; velvety dorsal and ventral surfaces of disc which are covered with fine denticles; long and slender tail is velvety and without enlarged thorns; lateral tail folds are not expanded distally, always narrower than tail width; nasal lobes not greatly expanded, width of nasal curtain 7.6-8.0% TL; relatively broad mouth, its width more than 66% of maximum width of nasal curtain; anterior pelvic-fin lobe is longer than posterior lobe; dorsal and ventral surfaces are dark, almost uniformly purplish grey; faint whitish spots over pores along the anterior margins of disc; total pectoral-fin radials 64-65, monospondylous centra 26-27, total diplospondylous centra 109-118, total number of centra 135-145 (Ref. 91035).
Body shape (shape guide): other (see remarks); Cross section: flattened.
A demersal species found on mid-insular slopes. Known from few specimens. Hatching size at ca. 17 cm TL. Life history unknown (Ref. 114953).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Séret, B. and P.R. Last, 2012. New deep water skates of the genus Notoraja Ishiyama, 1958 (Rajoidei, Arhynchobatidae) from the southwest Pacific. Zoosystema, 34 (2):319-341. (Ref. 91035)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 23 June 2017
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00562 (0.00287 - 0.01102), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.7 ±0.7 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Moderate vulnerability (39 of 100). 🛈 |