分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋 居于水底的; 深度上下限 60 - 185 m (Ref. 11228). 亞熱帶的; 27°S - 33°S, 17°E - 34°E (Ref. 114953)
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South-West Indian Ocean: Mozambique to the western Cape, South Africa.
西印度洋: 莫三比克南部到南非開普省西部。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 81.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3919)
简单描述
检索表 | 型态特徵 | 形态测量图
A guitarfish with a narrow, wedge-shaped snout and pectoral disc (Ref. 5578). Dorsal surface brown, with numerous blue-grey ocelli ringed with dark brown on the disc, head, fins, and tail (Ref. 3919).
Body shape (shape guide): elongated.
一个犁头鳐具有一个狭窄又楔形的吻与胸盘。 (参考文献 5578) 背面褐色, 有很多的蓝灰色假眼斑的环深褐色的在体盘，头部，鳍与尾部上.(参考文献 3919)
Rare species found offshore (Ref. 5578). Ovoviviparous (Ref. 50449). Probably caught by trawlers (Ref. 5578).
稀有的种发现于外海了。 (参考文献 5578) 卵胎生的.(参考文献 50449) 可能被底拖网捕获了。 (参考文献 5578)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).西印度洋: 莫三比克南部到南非開普省西部。
Compagno, L.J.V., 1986. Rhinobatidae. p. 128-131. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3919)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 没有兴趣
工具
特别资料
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网络资源
基于模型的估算
首选温度 (参考文献
123201): 12.3 - 24.2, mean 15.9 °C (based on 26 cells).
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00295 (0.00150 - 0.00581), b=3.13 (2.96 - 3.30), 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): 3.5 ±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 (Fec assumed to be <100).
渔业脆弱性 (Ref.
59153): Moderate to high vulnerability (52 of 100).
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