D'Arcy is joined in the squad by two newcomers - in the shape of the uncapped Ulster duo Kieran Campbell and Ronan McCormack.
In the forwards, Alan Quinlan's good form has seen him named along with young uncapped Ulster number 8 Roger Wilson in the highly competitive back row area, where Irish coach Eddie O'Sullivan has named seven players.
In the front row, five props and three hookers will be attending the camp in Dublin, with Connacht hooker Bernard Jackman and Ulster prop McCormack the other uncapped players.
Munster back Shaun Payne also joins Ulster scrum half Campbell as the other uncapped player in the backs.
Simon Best (Belfast Harlequins/Ulster)Shane Byrne (Blackrock College/Leinster) Reggie Corrigan (Greystones/Leinster) Leo Cullen (Blackrock College/Leinster) Simon Easterby (LIaneli) Anthony Foley (Shannon/Munster) John Hayes (Bruff/Munster) Marcus Horan (Shannon/Munster) Bernard Jackman (Clontarf/Connacht) Denis Leamy (Cork Constitution/Munster)Eric Miller (Terenure College/Leinster)Ronan McCormack (Buccaneers/Ulster)Donncha O'Callaghan (Cork Constitution/Munster) Paul O'Connell (Young Munster/Munster) Johnny O'Connor (Wasps) Malcolm O'Kelly (St. Mary's College/Leinster)
Tommy Bowe (Belfast Harlequins/Ulster)Kieran Campbell (Dungannon/Ulster)Gordon D'Arcy (Lansdowne/Leinster) Girvan Dempsey (Terenure College/Leinster) Gavin Duffy (NEC Harlequins) Guy Easterby (Blackrock College/Leinster)Denis Hickie (St. Mary's College/Leinster) Anthony Horgan (Cork Constitution/Munster)Shane Horgan (Lansdowne/Leinster)David Humphreys (Dungannon/Ulster)Kevin Maggs (Belfast Harlequins/Ulster)Geordan Murphy (Leicester)Brian O'Driscoll (Blackrock College/Leinster) Ronan O'Gara (Cork Constitution/Munster) Shaun Payne (Dolphin/Munster)Peter Stringer (Shannon/Munster)
Not considered due to injury:
Keith Gleeson (St. Mary's College/Leinster)Tyrone Howe (Dungannon/Ulster)John Kelly (Cork Constitution/Munster)Neil McMillan (Ballymena/Ulster)