False widow spider?

False widow spider?

Observation - False widow spider?. Description: Sorry for bad photo, it was taken on my phone. Spider is dead and immersed in water, how i found it. Please help me know what it is as i dont like spiders much and this was found in my horses water bucket in his stable (he hadn't drank from it as he was s

Sorry for bad photo, it was taken on my phone. Spider is dead and immersed in water, how i found it. Please help me know what it is as i dont like spiders much and this was found in my horses water bucket in his stable (he hadn't drank from it as he was still in the field so no worries about him.
The stables are about 300 yards or so from the sea.