Two-time world champion Liam Tancock is not among those named for Barcelona but head coach Bill Furniss is upbeat about medal chances, after deciding to pick a smaller but more focussed squad.
Olympic silver medallist Michael Jamieson will lead the podium charge and top-ranked distance freestyler Jaz Carlin is in-form following three wins at last week's British Gas Swimming Championships in Sheffield.
In addition, there are a number of new faces with Ross Murdoch, Ben Proud and Lauren Quigley all making their major championship debuts.
“I feel it is a very focused team and a team focused around Olympic events and current form,” said Furniss.
“This is British Swimming’s new philosophy following London and the clear message that came back from UK Sport in terms of a focus requirement on Olympic events.
“Generally, there is a good mix of experience and up and coming talent which is important as we look forward.
"For the younger athletes they will be able to learn a great deal from both the event itself as well as their more experienced team mates.
“I believe this tighter focus for the team will give us every chance to succeed at the World Championships.”
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