Dan Sheehan and James Lowe are among those included in Ireland's Six Nations squad.
Caretaker coach Simon Easterby has just one uncapped player in an otherwise experienced selection, with Leinster prop Jack Boyle among the 36-man squad.
Connacht scrum half Caolin Blade also makes the cut, while the Ulster duo of Stuart McCloskey and Jacob Stockdale are among those missing out.
Hugh Cooney, Cathal Forde, James McNabney and Ben Murphy have also been called up as development players.
Ireland Squad – Guinness Men’s Six Nations:
Forwards (21):
Ryan Baird (Dublin University/Leinster)(23)
Finlay Bealham (Corinthians/Connacht)(46)
Tadhg Beirne (Lansdowne/Munster)(56)
Jack Boyle (UCD/Leinster)*
Thomas Clarkson (Dublin University/Leinster)(2)
Jack Conan (Old Belvedere/Leinster)(46)
Caelan Doris (St Mary’s College/Leinster)(captain)(47)
Tadhg Furlong (Clontarf/Leinster)(78)
Cian Healy (Clontarf/Leinster)(134)
Iain Henderson (Academy/Ulster)(84)
Rob Herring (Ballynahinch/Ulster)(42)
Cormac Izuchukwu (Ballynahinch/Ulster)(1)
Rónan Kelleher (Lansdowne/Leinster)(37)
Gus McCarthy (UCD/Leinster)(2)
Joe McCarthy (Dublin University/Leinster)(16)
Peter O’Mahony (Cork Constitution/Munster)(110)
Andrew Porter (UCD/Leinster)(70)
Cian Prendergast (UCD/Connacht)(4)
James Ryan (UCD/Leinster)(67)
Dan Sheehan (Lansdowne/Leinster)(27)
Josh van der Flier (UCD/Leinster)(68)
Backs (15):
Bundee Aki (Galwegians/Connacht)(60)
Caolin Blade (Galwegians/Connacht)(3)
Jack Crowley (Cork Constitution/Munster)(19)
Ciaran Frawley (UCD/Leinster)(8)
Jamison Gibson-Park (Leinster)(38)
Mack Hansen (Corinthians/Connacht)(25)
Robbie Henshaw (Buccaneers/Leinster)(77)
Hugo Keenan (UCD/Leinster)(42)
James Lowe (Leinster)(36)
Conor Murray (Garryowen/Munster)(120)
Calvin Nash (Young Munster/Munster)(8)
Jimmy O’Brien (Naas/Leinster)(8)
Jamie Osborne (Naas/Leinster)(5)
Sam Prendergast (Lansdowne/Leinster)(3)
Garry Ringrose (UCD/Leinster)(63)
Development Players (4):
Hugh Cooney (Clontarf/Leinster)*
Cathal Forde (Corinthians/Connacht)*
James McNabney (Ballymena/Ulster)*
Ben Murphy (Clontarf/Connacht)*