第 1137 號，共 1 402 號

Giant Caribbean sea anemone

Condylactis gigantea

無害對人無害。不用擔心。

會螫人的觸手吃：肉

The giant Caribbean sea anemone is a large, colourful sea animal that looks like a soft, flower-shaped blob on the seabed. It lives in shallow reefs and calm inshore waters in the Caribbean and western Atlantic. Its sting is strong enough to stun the fish and shrimp it eats.1

分布在

Caribbean Sea and West Indies, and the western Atlantic from southern Florida through the Florida Keys; also common in Bermuda1

大西洋, 加勒比海, 墨西哥灣

首頁

It is usually found in crevices in rock walls, or attached to a rock, shell or other hard object in shallow water with full-strength seawater most of the time. It is very common around reefs, in both forereef and lagoon areas.1

長度

15 cm (5,9 in)1

最高速度

大約 0,01 km/h（0,01 mph）

游泳, 粗略估計

牠吃什麼？

It eats fish, mussels, shrimp, zooplankton and sea worms. Its stinging cells paralyse the prey, which is then carried to the mouth and swallowed whole.1

Giant Caribbean sea anemone 的照片 — Giant Caribbean sea anemone。照片：LASZLO ILYES。 CC BY 4.0, iNaturalist.

怎麼認出牠

Grows about 15 cm high and 30 cm wide, with a disc up to about 40 cm across1
Body can be white, light blue, pink, orange, pale red or light brown1
More than 100 tentacles surround the mouth1
Tentacle tips may be purple or rose-coloured, or may be paler than the body1
Grows singly or in loose groups, never as colonies1

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？

Its stinging cells (nematocysts) at the tentacle tips contain a toxin called CgNa. When the stinging cells fire, they impale the attacker and release the toxin, which causes extreme pain and paralysis.1

牠對人有多危險？

對人的危險: 輕微跟蜜蜂螫差不多或更輕微。對人基本上無害。

牠害怕時會做什麼？

When threatened it shrinks by pulling its tentacles into its body and forcing out most of the water, which reduces the surface a predator can attack.1

如果牠螫人

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加勒比海墨西哥灣

牠有多大？

牠有多長？

跟 5 塊玩具積木排成一排一樣長比花園蝸牛還慢

Giant Caribbean sea anemone 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？

一隻海馬 大約 0,0015 km/h (0 mph)

Giant Caribbean sea anemone 大約 0,01 km/h (0,01 mph)

一隻花園蝸牛 大約 0,05 km/h (0,03 mph)

值得知道

小知識

Its nerve cells contain proteins that are molecularly similar to those in mammal nerve cells, which helps scientists study how nervous systems evolved.1

Fish and cleaner shrimp shelter among its tentacles, and it serves as a base station for fish cleaning.1

Although mostly stuck in place, it can crawl very slowly on its base, the pedal disc.1

Its larvae carry their own food in a yolk, so starvation is unlikely and they can drift far to spread out.1

Most individuals are either male or female, with a roughly equal ratio of the two sexes, though they occasionally have both.1

給毒液專家

學名: Condylactis gigantea
類群: 水母和會螫人的海洋生物
家人: Actiniidae2
排序: Actiniaria
各大洲: 大西洋, 加勒比海, 墨西哥灣, 海洋
寶寶: Eggs and sperm are released into the water, where fertilisation happens. The fertilised egg becomes a larva that settles on the seabed and grows into an adult.1
對人的危險: 1 / 5: 輕微3