I have seen this type to, looks like a kind of pond skater but at a guess might be Meta segmentata,Linyphia payculliana, or pisaura Mirabillis.
None of which are poisonous (your quite safe) we have Taratulas and the Chilian Rose only has a bite less poisonous than that of a bee sting.
I seem to remember correct me if i am wrong anyone that a waterboat man as well as having the capacity to drag down tadpoles as they rise to breath and then eat them in the murky depths of a pond can also give a nasty little nip to soft skin tissue. Hope this helps terry,