unknown spider in house

[LW gamer]

My girlfriend got bitten by a spider on the finger we think it came from the bathroom she had a single puncher mark red on the bite but no swelling or soreness. it looks like a picture I found on-line of a spider called Amaurobius fenestralis but the markings are a lot lighter than on the one that bit her hand, but its got very similar markings on the back half of the body(don't know anything about spiders) and the legs look very similar, I don't know how much variation for the same type of spider you can get. My girlfriend also reckons the back half on the one that bit her is thinner if anyone can tell me anything because i cant find a spider that looks exactly like that anywhere on-line and i only got a few pictures but there not very good one's.

[RobAtkinson1]

It might be worth checking out Amaurobius Ferox or Amaurobius Similis.

[LW gamer]

We think it might be the Amaurobius Ferox do they bite for example when you pick up a towel its hiding in, and are they common in yorkshire because we never seen one like it before I i always thought spiders in Britain did't bite.

[RobAtkinson1]

There are few spiders capable of puncturing human skin in the Uk. Most of them will only bite if being squashed. I'm not sure of the distribution of A. Ferox though.

[LW gamer]

cheers for that looked them up alittle and now the girlfriend is worried there is going to loads of baby's around or something we will have to wait and see i guess, by the way i think it was a male going by the size.