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Xingu River ray的卡通图
第 1251 号,共 1 402 张

Xingu River ray

Potamotrygon leopoldi
名字的由来: It is named in honour of King Leopold III of Belgium, who sponsored many scientific studies.1
需要看医生很少致命,但被蜇了要去看医生。
有毒的鱼 蜇伤吃:肉
对人的危险: 严重被蜇了要去看医生。死亡非常罕见。

The Xingu River ray is a freshwater stingray that lives only in the Xingu River basin in Brazil. It likes clear water over rocky riverbeds. It has a venomous spine in its tail, so it is one to admire from a distance.1

生活在
Xingu River basin, Brazil (endemic)1
南美洲
首页
It prefers clear waters with rocky bottoms in the Xingu River basin. It is sometimes kept in aquaria.1
长度
75 cm (2.5 ft)1
体重
20 kg (44 lb)1
最高速度
约 15 公里/小时(9.3 英里/小时)
游泳, 粗略估计
它吃什么?
Mature rays have jaws that become stiffer and more strongly mineralised with age, so they can eat hard-shelled invertebrates.1
真的!Xingu River ray的照片
Xingu River ray。照片:Photo by and (C)2007 Derek Ramsey (Ram-Man)。 CC BY-SA 2.5, Wikimedia Commons.

怎样认出它

  • Deeper black above than its relative P. henlei1
  • Fewer and larger yellowish-white spots on the upper side than P. albimaculata1
  • Underparts are mostly brownish-dusky1
  • Females grow larger than males1

常被误认为: It is closely related to P. henlei from the Tocantins River basin and P. albimaculata from the Tapajós River basin, and they look similar. P. henlei has a large white centre on its underparts, while this species has mostly brownish-dusky underparts. P. albimaculata has more spots above, and they are smaller than the spots on this species.1

毒液之力

蜇伤

毒液通过蜇刺出来。

它的毒液会造成什么?

The venom is held in a dentine spine on the tail. Its composition stays the same as the ray matures, but its toxicity decreases as the ray gets older.1

它对人有多危险?

对人的危险: 严重被蜇了要去看医生。死亡非常罕见。

如果它蜇人

  • 把伤口泡在热水里,水温以不烫伤为限、尽量热(先用你自己的手试一试),泡 30 到 90 分钟。去看医生,尤其是被石头鱼和魟鱼伤到时。

一定先拨打你的急救电话(112、000、911)。这里是一般急救指导,不是医疗建议。 急救基础

注意安全

  • 永远不要摸、抓或逗弄野生动物,即使是很小的,即使它看起来在睡觉或已经死了。
  • 给它留出空间。如果遇到它,保持冷静,慢慢后退,让它走自己的路。
  • 如果被它蜇了:保持冷静,保持不动,拨打你的急救电话(112、000、911)或尽快去医院。记住它长什么样,拍张照片会有帮助。

它不是冲着你来的。它用毒液捕猎或保护自己,而且它更愿意躲起来。 更多安全知识

它有多大?

它有多长?

Xingu River ray 约 75 cm 长 (2.5 ft)一只家猫 约 50 cm (1.6 ft)一只狗 约 1 m (3.3 ft)

它有多重?

和 5 只家猫一样重
和 4 根香蕉首尾相接一样长12 秒就能游完一个大泳池(50 米)

Xingu River ray和你比起来有多大?

只是在你的浏览器里算一算。什么都不会被保存或发送到任何地方。

它有多快?

值得了解

事实

1

Its venom toxicity drops as it gets older, while the venom's makeup stays the same.1

2

It can weigh up to 20 kg, which is very large for a freshwater stingray.1

3

As it matures, its jaws become stronger, which lets it eat hard-shelled invertebrates.1

4

Females grow larger than males.1

给毒液专家

学名
Potamotrygon leopoldi
类别
有毒的鱼
家人
Potamotrygonidae2
排序
Myliobatiformes
大洲
南美洲
对人的危险
3 / 5: 严重3

事实的来源

  1. Xingu River ray (Wikipedia (CC BY-SA 4.0))
  2. Potamotrygon leopoldi (iNaturalist): 名称和分类。
  3. Venom Wiki: 危险等级、典型大小和速度估计都是我们自己给出的。看看我们是怎么算的: 我们如何评定危险.

本页的每个事实都有一个编号,指向它的来源。如果我们写错了,抱歉,我们是动物爱好者,不是科学期刊。请写信到 [email protected] 告诉我们,我们会改正。

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也生活在: 南美洲

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