In total, Kidney has named 29 players in his squad for the three-Test tour which gets underway on June 9, leaving four spaces still available.
There is one of those spaces in the second row as Paul O'Connell continues his recovery from the knee injury that has ruled him out of the squad to face the Barbarians on May 29.
Brian O'Driscoll returns as captain after missing out on all of the RBS 6 Nations with Kidney to confirm one more back and three forwards, which may or may not include O'Connell.
Ireland squad for the three-Test summer tour to New Zealand:
Forwards: R Best (Ulster), S Cronin (Leinster), S Ferris (Ulster), D Fitzpatrick (Ulster), C Healy (Leinster), J Heaslip (Leinster), S O'Brien (Leinster), D O'Callaghan (Munster), P O'Mahony (Munster), M Ross (Leinster), D Ryan (Munster), M Sherry (Munster), D Tuohy (Ulster) - three more to be confirmed.
Backs: D Cave (Ulster), G D'Arcy (Leinster), K Earls (Munster), R Kearney (Leinster), F McFadden (Leinster), C Murray (Munster), B O'Driscoll (Leinster, captain), R O'Gara (Munster), E Reddan (Leinster), J Sexton (Leinster), A Trimble (Ulster), S Zebo (Munster) - one more to be confirmed.