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Cartoon of Haddon's sea anemone
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Haddon's sea anemone

Stichodactyla haddoni
Jellyfish & sea stingers๐Ÿชผ Stinging tentacles
Danger to people: PainfulIt can really hurt, but it is almost never serious.

Haddon's sea anemone belongs to the group: Jellyfish & sea stingers. It lives in: The oceans.2

Lives in
The oceans2
Length
50 cm (1.6 ft)2
typical adult size
Top speed
about 0.01 km/h (0.01 mph)
Swimming, rough guess

Venom power

Stinging tentacles

Thousands of tiny stinging cells fire when something touches them.

How dangerous is it to people?

Danger to people: PainfulIt can really hurt, but it is almost never serious.

๐Ÿš‘ If it bites or stings

  • Get out of the water and pick off any tentacles (with gloves or a cloth).
  • For tropical box jellyfish: pour vinegar on the stings for at least 30 seconds, call for help and be ready to do CPR. For bluebottles and most others: rinse with seawater, then hot water for the pain.

Always call your emergency number first (112, 000, 911). This is general first aid guidance, not medical advice. First aid basics

โ›‘๏ธ Stay safe

  • Never touch, catch or tease a wild animal, even a small one, and even if it looks asleep or dead.
  • Give it space. If you meet one, stay calm, step back slowly and let it go its own way.
  • If one bites or stings you: stay calm, keep still, call your emergency number (112, 000, 911) or get to a hospital fast. Remember what it looked like, a photo helps.

It is not out to get you. It uses its venom to catch food or to protect itself, and it would much rather hide. More about staying safe

How big is it?

How long is it?

Haddon's sea anemone about 50 cm long (1.6 ft)๐ŸŒA banana about 18 cm (7.1 in)A house cat about 50 cm (1.6 ft)A dog about 1 m (3.3 ft)
as long as 3 bananas end to endas long as 16 toy building bricks in a rowslower than a garden snail

How big is Haddon's sea anemone compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast is it?

For venom experts

Scientific name
Stichodactyla haddoni
Group
Jellyfish & sea stingers
Family
Stichodactylidae1
Order
Actiniaria
Continents
The oceans
Danger to people
2 / 5: Painful2

Where the facts come from

  1. Stichodactyla haddoni (iNaturalist): names and classification.
  2. Venom Wiki: the danger level, the typical size and the speed guess are our own. See how we work them out: How we rate danger.

Every fact on this page has a number that points to its source. If we got something wrong, sorry, we are animal fans, not a science journal. Tell us at hello@venomwiki.app and we will fix it.

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More from the same group: Jellyfish & sea stingers

Also lives in: The oceans

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