Scotland coach Matt Williams has trimmed the original 44 strong contingent brought together for successive residential training stints attached to the Institute of Sport, Stirling.
The other Glasgow men to miss out are Moffat">Stuart Moffat, Sam Pinder and Graeme Morrison but it is the absence of the in-form Lamont that caused the biggest surprise. Graeme Beveridge, Gordon Bulloch, Andy Henderson, Cammy Mather, Euan Murray, Dan Parks and Jon Petrie retain their places.
Scotland squad: Ross Beattie (Gwent Dragons), Graeme Beveridge (Glasgow Warriors), Mike Blair (Edinburgh Rugby), Gordon Bulloch (Glasgow Warriors), Andy Craig (Orrell), Simon Cross (Edinburgh Rugby), Chris Cusiter (Borders), Simon Danielli (Bath), Bruce Douglas (Borders), Ross Ford (Borders), Stuart Grimes (Newcastle Falcons), Andrew Henderson (Glasgow Warriors), Nathan Hines (Edinburgh Rugby), Ben Hinshelwood (Worcester), Ally Hogg (Edinburgh Rugby), Allan Jacobsen (Edinburgh Rugby), Ally Kellock (Edinburgh Rugby), Brendan Laney (Edinburgh Rugby), Cammy Mather (Glasgow Warriors), Gareth Morton (Borders), Euan Murray (Glasgow Warriors), Scott Murray (Edinburgh Rugby), Dan Parks (Glasgow Warriors), Chris Paterson (Edinburgh Rugby), Jon Petrie (Glasgow Warriors), Tom Philip (Edinburgh Rugby), Robbie Russell (Saracens), Craig Smith (Edinburgh Rugbyt), Tom Smith (Northampton Saints), Simon Taylor (Edinburgh Rugby), Nikki Walker (Borders), Alastair Warnock (Edinburgh Rugby), Simon Webster (Edinburgh Rugby), Jason White (Sale Sharks).