分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Holocephali
全頭亞綱 (銀鮫科) (chimaeras) >
Chimaeriformes (Chimaeras)
銀鮫目 (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
短鼻銀鮫科 (Shortnose chimaeras or ratfishes)
Etymology: Chimaera: Named for the mythological creature composed of parts of multiple animals, referring to their odd mix of characteristics (See ETYFish); orientalis: Latin for eastern, the first Chimaera described from the eastern Pacific Ocean (See ETYFish).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 深海底的; 深度上下限 560 - 1138 m (Ref. 97389).
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Eastern Pacific: Costa Rica and Peru; probably more widely distributed in the eastern Pacifc region.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 17.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 97389)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished from its congeners by having an anal fin; also by the following set of characters: the oral and preopercular canals share a short common branch off the infraorbital canal; long dorsal spine (DSA 28.4-31.0% BDL), longer than first dorsal fin, when depressed reaches beyond to origin of second dorsal fin; first dorsal fin is high (D1H 20.8-26.7% BDL) with a short base (D1B 10.3-12.5% BDL); long interdorsal space (IDS 8.1-10.2% BDL); long pectoral fin (P1A 40.0-43.5% BDL), when depressed reaches beyond origin of pelvic fin base; long pelvic claspers (CLT 17.5-17.7% BDL), bifurcate, divided at about distal 40.9-43.1% of its length; long dorsal caudal space (DCS 2.0-2.5% BDL); ventral caudal margin ending slightly posterior to dorsal caudal margin; coloration dark brown with ventral portion of the trunk and all fins slightly darker, without distinctive markings or mottling (Ref. 97389).
Body shape (shape guide): elongated.
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Angulo, A., M.I. López, W.A. Bussing and A. Murase, 2014. Records of chimaeroid fishes (Holocephali: Chimaeriformes) from the Pacific coast of Costa Rica, with the description of a new species of Chimera (Chimaeridae) from the eastern Pacific Ocean. Zootaxa 3861(6):554-574. (Ref. 97389)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
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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=0.00331 (0.00137 - 0.00798), b=3.07 (2.87 - 3.27), 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) |
3.4 ±0.5 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
低的, 最小族群倍增時間4.5 - 14 年 (Deep-water species with low fecundity (RF).). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (23 of 100). 🛈 |