Forwards: Alasdair Dickinson, Ryan Grant, WP Nel, Gordon Reid, Jon Welsh, Fraser Brown, Ross Ford, Stuart McInally, Jonny Gray, Richie Gray, Grant Gilchrist, Tim Swinson, David Denton, Josh Strauss, Ryan Wilson, John Hardie, Alasdair Strokosch.
Backs: Greig Laidlaw (c), Henry Pyrgos, Sam Hidalgo-Clyne, Finn Russell, Duncan Weir, Mark Bennett, Matt Scott, Peter Horne, Richie Vernon, Stuart Hogg, Sean Lamont, Sean Maitland, Tommy Seymour, Tim Visser.
Form: A first win of 2015 came in the World Cup warm-up contest with Italy in Turin after another Six Nations whitewash. Victories in November 2014 over Argentina and Tonga had provided some confidence but there is still plenty of room for improvement. A big home win over Italy on the eve of the tournament was promising.
Captain: Greig Laidlaw has captained Scotland of late, but his own scrum-half position has come under threat from Henry Pyrgos and Sam Hidalgo-Clyne. Laidlaw is a solid goalkicker and a wise head behind the pack.
Star player: Stuart Hogg. The Glasgow Warriors full-back is versatile, confident under the high ball and a fine and elusive runner from deep. He can be Scotland's trump card.
World Cup history: Semi-finalists in 1991 and five-time quarter-finalists, Scotland failed to advance from the pool stages for the first time in New Zealand four years ago. New Zealander Cotter has made improvements, but whether it is enough remains to be seen.
Scotland’s Pool B fixtures:
Wed 23 Sept SCOTLAND v JAPAN (Kingsholm, 2.30pm)
Sun 27 Sept SCOTLAND v USA (Elland Road, 2.30pm)
Sat 3 Oct SOUTH AFRICA v SCOTLAND (St James Park, 4.45pm)
Sat 10 Oct SAMOA v SCOTLAND (St James Park, 2.30pm)