分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinobatidae (Guitarfishes)
Eponymy: Henry von Prahl (1948–1989) was a pioneering Colombian marine biologist who studied Gorgona Island (the type locality) and whose family emigrated from Germany (1953). He was killed by a bomb, which exploded on Avianca Airlines Flight 203 over Bogotá. (Ref. 128868), visit book page.
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 ? - 70 m (Ref. 26282). 熱帶; 14°N - 6°S, 92°W - 82°W (Ref. 114953)
Eastern Pacific: from Mexico and from north-western Costa Rica to northern Peru.
東太平洋: 已知來自模式標本產地, 哥倫比亞的 Isla de Gorgona, 與從祕魯北部。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 90.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 101827); 最大体重: 1.4 kg (Ref. 37888)
Rostral cartilage distally enlarged; anterior nasal prolongations reaching medial margin of nostrils; posterior margin of spiracle with 2 folds, the medial one rudimentary; a line of about 77 prickles between nuchal region and first dorsal fin; 3 or 4 prickles on shoulders, few tubercles on snout and small prickles on anterior margin of orbits; body covered dorsally with about 80 white dots (3 to 5 mm in diameter) over a brown body; underbody white except snout with a black diamond shape blotch, extending backward laterally (Ref. 13259).
Body shape (shape guide): elongated.
嘴的软骨组织末梢部地增大了; 前面的鼻延伸达到鼻孔的中间边缘; 呼吸孔的后缘有两个摺层,一个中间的不发达的; 在颈背的区域与第一背鳍之间的一条大约 77个刺的线; 3 或 4 在肩上刺, 在眼窝的前缘上的吻与小的刺上少数小瘤; 背面被涵盖的身体在一个褐色身体之上有大约 80个白色的点 (3 到 5 mm 直径); 身体下面白色除了吻部有一个黑色菱形斑块之外, 侧面地向后地延伸.(参考文献 13259)
Living individuals reported to be in sandy and rocky environments near coral-reefs at 18-24 m depth of the Colombian coast (Ref. 101827). In contrast the type specimen was taken from a depth of 70 m (Ref. 26282). Ovoviviparous (Ref. 50449). Males mature at ca. 71 cm TL (Ref. 114953).
方式标本取自了深度 70 公尺。 (参考文献 26282) 卵胎生的.(参考文献 50449)
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).東太平洋: 已知來自模式標本產地, 哥倫比亞的 Isla de Gorgona, 與從祕魯北部。
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
易受伤害 (VU) (A2d); Date assessed: 24 February 2020
人类利用
渔业: 没有兴趣
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特别资料
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网络资源
基于模型的估算
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00282 (0.00167 - 0.00476), b=3.10 (2.95 - 3.25), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
营养阶层 (参考文献 69278) |
3.6 ±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 vulnerability (43 of 100). 🛈 |