第 1082 號，共 1 402 號

Four-handed box jellyfish

Chiropsalmus quadrumanus

可能致命不要碰不治療的話可能會害死你。如果牠螫了你，要趕快求救。

會螫人的觸手吃：肉

The four-handed box jellyfish is a clear, cube-shaped jellyfish that lives in warm seas. It is found in the western Atlantic, the Gulf of Mexico and parts of the Pacific. Its sting is venomous and can be dangerous to people, especially children.1

分布在

Western Atlantic coast of North America, Gulf of Mexico, Caribbean, Brazil, Pacific Ocean, Hawaii and Australia1

大西洋, 地中海, 加勒比海

首頁

It is usually found in warm, open seas, but it sometimes appears inshore in large numbers. Large numbers have washed up on beaches after gales, and dead jellyfish have been seen floating on the surface after heavy rain.1

長度

14 cm (5,5 in)1

最高速度

大約 5 km/h（3,1 mph）

游泳, 粗略估計

牠吃什麼？

Its long tentacles are armed with stinging cells called nematocysts. These catch prey such as small fish.1

Four-handed box jellyfish 的照片 — Four-handed box jellyfish。照片：Mayor, Alfred Goldsborough。 Public domain, Wikimedia Commons.

怎麼認出牠

Cube-shaped and colourless, so it is clear and hard to see in the water1
Bell about 14 cm across, with a flat top and rounded top edges1
Four lower corners, each with a bundle of 7 to 9 tentacles1
Outer two tentacles are pinkish, inner ones yellowish white1
Tentacles can be up to 3 to 4 metres long1

毒液力量

會螫人的觸手

有東西碰到時，成千上萬個小小的刺細胞就會發射。

牠的毒液有什麼作用？

The stinging cells on the tentacles release venom that causes an extremely painful sting. The sting is linear, meaning it leaves a line of marks on the skin. Apart from pain, it can cause heart dysfunction and slowed breathing, which are systemic symptoms that affect the whole body. The rash can last for several months.1

牠對人有多危險？

對人的危險: 非常危險如果沒有治療，牠可能會害死一個人。

The sting is extremely painful and can be life-threatening. A four-year-old boy in the Gulf of Mexico died within forty minutes of being stung. Off the coast of Brazil, 16 stings over five years were identified as coming from this species. Children are especially at risk.1

好消息：醫生有藥（抗毒血清）或治療方法。1

牠害怕時會做什麼？

Its long, stinging tentacles deter predators.1

如果牠螫人

Antivenom given within a few hours of the sting relieves the pain somewhat, reduces the severity of the rash and improves other symptoms. In extreme cases, cardiopulmonary resuscitation (CPR) can be effective if started promptly.1
離開水裡，把觸手拿掉（戴手套或用布）。
熱帶箱形水母：在螫傷處倒醋至少 30 秒，求救，並準備好做心肺復甦術（CPR）。藍瓶水母和大多數其他水母：用海水沖洗，再用熱水止痛。

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。
如果被牠螫了：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大西洋地中海加勒比海

牠有多大？

牠有多長？

跟 4 塊玩具積木排成一排一樣長可以在 36 秒內游完一座大游泳池（50 公尺）

Four-handed box jellyfish 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？

一個正在游泳的人 大約 3 km/h (1,9 mph)

Four-handed box jellyfish 大約 5 km/h (3,1 mph)

奧運游泳選手 大約 8 km/h (5 mph)

值得知道

小知識

Its bell is almost completely transparent, which makes it hard to spot in the water.1

Its tentacles are the longest part of its body, reaching several metres in length.1

Along the Texas Gulf coast in 1955 and 1956, large numbers appeared inshore during drought, when the water was saltier than normal.1

Scientists have done little research on this species, and studies have found that jellyfish from different regions can have different stinging cells.1

Small specimens were often caught in shrimp trawls, while the adults were seldom seen near the surface.1