第 0445 號，共 1 402 號

Mexican horned pitviper

Ophryacus undulatus

需要看醫生很少致命，但被咬了需要看醫生。

咬吃：肉

The Mexican horned pitviper is a venomous snake that lives in the mountains of central and southern Mexico. It has a pair of raised scales above its eyes that look like small horns, which is how it gets its name. It is listed as Vulnerable, which means it is at risk of dying out in the wild.1

分布在

Mountains of central and southern Mexico, including Hidalgo, Veracruz, Oaxaca and Guerrero1

北美洲

首頁

It lives on brush and rocky slopes near streams, at heights of 1,800 to 2,800 metres above sea level. It is often seen coiled on or near fallen logs, and in bushes and small trees 1 to 4 metres above the ground.1

長度

55 cm 到 70 cm (1,8 ft 到 2,3 ft)1

最高速度

大約 3,3 km/h（2,1 mph）

在陸地上, 粗略估計

牠吃什麼？

It eats rodents and lizards.1

Mexican horned pitviper 的照片 — Mexican horned pitviper。照片：Eugenio Padilla。 CC BY-SA 4.0, Wikimedia Commons.

怎麼認出牠

Adults grow to 55 to 70 centimetres long and are moderately stout.1
A pair of elongated scales above the eyes forms 'horns' or 'spines'.1
The body is silvery-grey with a row of black blotches that merge into a broad, wavy stripe down the back.1
Black speckles appear on the sides of the body.1
The top of the head is black.1

毒液力量

咬

咬的時候，毒液會從毒牙或牙齒出來。

牠對人有多危險？

對人的危險: 嚴重被咬了需要看醫生。死亡案例非常罕見。

如果牠咬人

讓傷者保持不動和冷靜，讓被咬的手臂或腿保持在和心臟一樣的高度，取下戒指和緊身的東西，並趕快送醫院。

一定要先打緊急電話（112、000、911）。這是一般急救指引，不是醫療建議。急救基本知識

注意安全

絕對不要碰、抓或捉弄野生動物，就算是很小的動物，就算牠看起來在睡覺或已經死了也一樣。
給牠空間。如果遇到了，保持冷靜，慢慢往後退，讓牠自己離開。
如果被牠咬了：保持冷靜，保持不動，打緊急電話（112、000、911）或趕快去醫院。記住牠的樣子，有照片會很有幫助。

牠不是想來抓你。牠用毒液來捕捉食物或保護自己，而且牠更想躲起來。更多安全知識

在世界上的哪裡？

非洲亞洲歐洲北美洲南美洲澳洲與大洋洲

牠有多大？

牠有多長？

跟 4 根香蕉頭尾相接一樣長可以在 110 秒內跑完 100 公尺（最快的人類需要 9.6 秒）

Mexican horned pitviper 跟「你」比起來有多大？

只是在你的瀏覽器裡做算術。什麼都不會儲存，也不會傳送到任何地方。

牠有多快？

一隻陸龜 大約 0,3 km/h (0,19 mph)

Mexican horned pitviper 大約 3,3 km/h (2,1 mph)

一個正在走路的人 大約 5 km/h (3,1 mph)

值得知道

小知識

It has raised scales above its eyes that look like horns.1

It is often found coiled in bushes and small trees, sometimes more than three metres off the ground.1

It is only active during the day, because night-time temperatures across its range are low.1

It gives birth to live young instead of laying eggs.1

給毒液專家

學名: Ophryacus undulatus
類群: 蝮蛇
家人: Viperidae2
排序: Squamata
各大洲: 北美洲
寶寶: It is ovoviviparous, meaning the female gives birth to live young rather than laying eggs.1
牠在野外的狀況: Vulnerable (IUCN Red List)1
對人的危險: 3 / 5: 嚴重3