Debutant Matt Prior plundered the most memorable of England's four centuries as their run-fest escalated to 553 for five by the end of day two in the first Test against West Indies at Lord's.

Wicketkeeper Prior (126 not out) followed Paul Collingwood (111) and Alastair Cook (105) to three figures - and got there slightly before his sixth-wicket partner Ian Bell (109no).

The 25-year-old dominated his unbroken stand of 190 with Bell, who had 56 runs on the board when Prior came in.

Prior hit 16 fours from 105 deliveries as he became only the third England player to make a century on debut at the home of cricket.

He said: "What an unbelievable feeling (to make a century). A great day for England as well.

"I had got the nerves out of the way and I knew I had prepared well."

Prior has struggled for runs in county cricket so far this summer, but he believes all that was required was a change in fortunes.

"I just got a bit of luck," he added. "I have had a few decisions go against me and I just needed to get going.

"It happened today and I stayed positive and focussed."

A more workmanlike Collingwood had earlier made West Indies pay for missed chances as he posted his fourth Test hundred.

He was twice dropped badly in the 30s and went on to share a stand of 144 with Bell, helping to keep the pressure on for batting positions in an England middle order due to be reinforced by the returns from injury of Michael Vaughan and Andrew Flintoff at Headingley next week.

Collingwood's hundred took 178 balls, and Bell's 180 - but Prior operated on a different frequency.