I try to be careful--but sometimes I'm not--and then even if I'm corrected, a misidentification may persist forever in the Google cache.
I've adjusted the text below, and the title, in response to the comment Bev of Burning Silo kindly left on this post, pointing out that this is another spider altogether--probably a Pisaurina mira. The linked page includes a photo of what I think is a female of this species. Mine was probably a male, given the clubbed appearance of the palps.
Back in April, as described in this post, I found a spider on the kitchen floor that was identifed for me as a Dolomedes triton (six-spotted fishing spider). Well, that's crazy. What would a fishing spider be doing in my kitchen?
Then the other morning I found the critter above--
Dolomedes triton is one of the spiders being recorded in Spider WebWatch, so I take this as a sign that I really must
Burning Silo has an excellent post from earlier this year with photos and accounts of a number of quite beautiful spiders in the genus Dolomedes.