House Spider, or some kind of new Species perhaps? - Found in Sink. West Midlands

House Spider, or some kind of new Species perhaps? - Found in Sink. West Midlands

Observation - House Spider, or some kind of new Species perhaps? - Found in Sink. West Midlands. Description: Before taking a shower, I needed to turn off a running tap. Due to this, I had spotted this strange spider - Shiny back sort of. With greyish kind of abdomen. It was hard to decide what it may have been. Although I am 100% certain it's a Female. Due to my

Before taking a shower, I needed to turn off a running tap. Due to this, I had spotted this strange spider - Shiny back sort of. With greyish kind of abdomen. It was hard to decide what it may have been. Although I am 100% certain it's a Female. Due to my recent knowledge of spiders...
(What do you guys think it is?) - Luke

Update: Although it could also just be mistaken for a Mouse Spider. It most likely would be a Amaurobius similis. However when disturbed it didn't do anything apart from scatter away. - What I'm saying is don't Amaurobius similis show some kind of defensive movement. - If not, then sorry. - The spider really has me interested, it looked different to other spiders I've encountered in the Bathroom. - So hmm...