Venom Wiki
Cartoon of Mexican beaded lizard
No. 0619 of 1,402

Mexican beaded lizard

Heloderma horridum
Venomous lizards๐Ÿฆท Bites
Danger to people: SeriousA bite or sting needs a doctor. Deaths are very rare.

Mexican beaded lizard belongs to the group: Venomous lizards. It lives in: North America.2

Lives in
North America2
Length
75 cm (2.5 ft)2
typical adult size
Top speed
about 2.5 km/h (1.6 mph)
On land, rough guess

Venom power

Bites

Venom comes out through its fangs or teeth when it bites.

How dangerous is it to people?

Danger to people: SeriousA bite or sting needs a doctor. Deaths are very rare.

๐Ÿš‘ If it bites or stings

  • Wash the wound, keep the person calm and get medical help.

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?

Mexican beaded lizard about 75 cm long (2.5 ft)A house cat about 50 cm (1.6 ft)A dog about 1 m (3.3 ft)A grown-up's bike about 1.8 m (5.9 ft)
as long as 4 bananas end to endcould cover 100 metres in 140 seconds (the fastest human needs 9.6)

How big is Mexican beaded lizard compared to YOU?

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

How fast is it?

For venom experts

Scientific name
Heloderma horridum
Group
Venomous lizards
Family
Helodermatidae1
Order
Squamata
Continents
North America
Danger to people
3 / 5: Serious2

Where the facts come from

  1. Heloderma horridum (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 [email protected] and we will fix it.

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More from the same group: Venomous lizards

Also lives in: North America

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