分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Holocephali
全头亚纲 (银鲛科) (chimaeras) >
Chimaeriformes (Chimaeras) >
Rhinochimaeridae (Longnose chimaeras)
Etymology: Rhinochimaera: A chimaera with rhinos (Gr.), nose, referring to long, pointed proboscis of R. pacifica (See ETYFish); africana: ana- (L.), belonging to: named for both its distribution around southern Africa and for the Sea Fisheries Research Institute research vessel Africana, from which holotype was collected (See ETYFish).
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋 深海底的; 深度上下限 549 - 1450 m (Ref. 11228). 深水域
Southeast Atlantic: southern Africa and Mozambique Channel. Pacific Ocean: Japan (off Hokkaido and northern Honshu) to the east China Sea, including Taiwan; Costa Rica and Peru.
東南大西洋。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 81.8 cm TL 雄鱼/尚未辨别雌雄; (Ref. 97389)
简单描述
检索表 | 型态特徵 | 形态测量图
This species is distinguished by the following characters: elongate body with an elongate, broad and paddle-shaped pointed snout extending anterior to head (SNL 47.7% HDL), tapering to a slender tail; the junction of supraorbital and infraorbital canals on ventral side of snout is closer to the tip of the snout than to the nasal canal; ONC/TIO is greater than 1.4 (ONC/TIO= 1.64); TIO/SWF is less than 1.5 (TIO/SWF= 1.47); TIO/LNC is less than 3.0 (TIO/LNC= 2.75); tooth-plates are nearly smooth; eyes are relatively small (EYL 6.4% BDL), distinctly behind level of mouth; the first and second dorsal fins are separated by a relatively long interdorsal space (IDS 23.6% BDL) and not connected by a web of skin; caudal-fin axis weakly raised with the fin asymmetrical, the epaxial caudal-fin lobe narrower than hypaxial lobe; dorsal caudal tubercles 25; caudal filament vestigial; coloration uniformly dark brown across entire body, except the oronasal region which is abruptly paler than the body (Ref. 97389).
Body shape (shape guide): elongated; Cross section: angular.
Rare (Ref. 11228). Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
稀有的.(参考文献 11228) 卵生的.(参考文献 205) 卵被包在角状的外型突起中。 (参考文献 205)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oviparous (Ref. 205).東南大西洋。
Heemstra, P.C., 1995. Additions and corrections for the 1995 impression. p. v-xv. In M.M. Smith and P.C. Heemstra (eds.) Revised Edition of Smiths' Sea Fishes. Springer-Verlag, Berlin. (Ref. 11228)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
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基于模型的估算
首选温度 (参考文献
123201): 2.1 - 8.2, mean 5.5 °C (based on 195 cells).
系统发育多样性指数 (参考文献
82804): PD
50 = 0.6270 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00195 (0.00083 - 0.00455), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.8 ±0.5 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Assuming Fec <100).
渔业脆弱性 (Ref.
59153): Moderate to high vulnerability (53 of 100).
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