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Lesser weever

Lesser weever by Paul Naylor

Lesser weever fish

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One of the only venomous fish to be found in British waters, the lesser weever fish is certainly one to watch out for!

Enw gwyddonol

Echiichthys vipera

Pryd i'w gweld

June - October.

Top facts

Stats

Up to 15cm long.
Common.

Ynghylch

There are two species of weever fish, lesser and great. And they are some of the only venomous fish in UK waters. They spend most of their lives buried in the sand, but when disturbed, they shoot up their black dorsal fin in defence, injecting a painful venom into unsuspecting victims!

What to look for

Upturned, grumpy mouth, with a deep yellowish body tapering down towards the tail. Eyes sit on top of the head as the rest of the body is usually buried in the sand. Black dorsal fin contains the venom, along with spines on gill covers.

Where to find

Found all around Britain, most common in south and south west.

Roeddech chi yn gwybod?

If you are stung by a weever fish, then place the body part in as hot water as you can bear, as quickly as possible. After 15 minutes or so, the pain should ease.