第 1120 号，共 1 402 张

Flower hat jelly

Olindias formosus

只是会疼不要触摸会疼，但不会对你造成严重伤害。

会蜇人的触手吃：鱼类

The flower hat jelly is a small, glowing sea creature from the northwestern Pacific, living off central and southern Japan and Jeju Island in South Korea. Although it looks like a jellyfish, it is a hydromedusa, a close relative of hydroids. It matters to people because its sting can cause a painful rash, and it is one of the few of its kind known to have caused a death.1

生活在

Northwestern Pacific off central and southern Japan, and Jeju Island, South Korea1

太平洋, 印度洋, 红海

首页

During the day it rests on the bottom, often among rocks or algae. At night it floats up into the water to hunt.1

长度

15 cm (5.9 in)1

最高速度

约 0.6 公里/小时（0.37 英里/小时）

游泳, 粗略估计

它吃什么？

It mainly eats small fish. It floats up at night to hunt, and its glowing light draws prey closer, where it can be caught.1

Flower hat jelly的照片 — Flower hat jelly。照片：mark6mauno。 CC BY-SA 4.0, iNaturalist.

怎样认出它

Fluorescent, so it glows when light falls on it1
Lustrous tentacles that coil and stick to the rim of the bell when not in use1
Translucent bell with opaque, pinstriped bands1
Grows up to about 15 cm across1

毒液之力

会蜇人的触手

一碰到东西，成千上万个小刺细胞就会发射。

它的毒液会造成什么？

The sting is generally mildly painful and leaves a rash.1

它对人有多危险？

对人的危险: 很疼可能真的很疼，但几乎从不严重。

The sting is generally mildly painful. There is a single known human fatality from Japan.1

如果它蜇人

离开水面，取下所有触手（戴手套或用布）。
热带箱水母：在蜇伤处倒醋至少 30 秒，呼救，并准备好做心肺复苏。僧帽水母和大多数其他水母：先用海水冲洗，再用热水止痛。

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

在世界哪里？

非洲亚洲欧洲北美洲南美洲澳大利亚和大洋洲太平洋印度洋红海

它有多大？

它有多长？

和 5 块玩具积木排成一排一样长

Flower hat jelly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？

一只花园蜗牛 约 0.05 公里/小时 (0.03 mph)

Flower hat jelly 约 0.6 公里/小时 (0.37 mph)

一个在游泳的人 约 3 公里/小时 (1.9 mph)

值得了解

事实

Its tentacles look random, but research has shown they are arranged mathematically, following a pattern called Fibonacci hashing.1

Its fluorescent light acts like a supernormal stimulus, luring prey towards it because the light is not normal for the habitat.1

A fluorescent protein from this species, called Gamillus, is used as a tag for tracking molecules in research, including work on SARS-CoV-2 viral entry.1

Adults are seen mainly from December to July, with peaks in April and May, and the adult form only lives a few months.1

谣言粉碎机

谣言： It is a true jellyfish.

真相： Although it looks like a jellyfish, it belongs to the class Hydrozoa. True jellyfish belong to the class Scyphozoa.1

给毒液专家

学名: Olindias formosus
类别: 水母和海中蜇人生物
家人: Olindiidae2
排序: Limnomedusae
大洲: 太平洋, 印度洋, 红海, 海洋
宝宝: Its life cycle includes hydroids that bud and release medusae about 1 mm across, but little is known about this in the wild.1
对人的危险: 2 / 5: 很疼3