"We believe we have selected two strong squads with a balance of experienced players and cricketers we consider ready for the challenge of international cricket,'' Littlejohn said.
"The new caps have earned their chance through solid performances at domestic level and we think it's the right time to take a look at players who will be in the frame for the Twenty20 World Cup later in the year, and looking further ahead to the 2015 ODI World Cup.
"The larger squad of 14 will allows us to provide opportunities for the new players and manage the workload of the others, especially bowlers, who feature in all three forms for the Black Caps.
"Although it is disappointing for the likes of Luke Woodcock, Graeme Aldridge, Andy McKay and BJ Watling, who miss out, we are pleased that there's real competition for places and, by the end of the series, will benefit from having another group of guys with international experience.
"Tarun Nethula and Ronnie Hira have been the form spinners this season and richly deserve their selection through consistently good performances.
"Michael Bates has been one of the best pace bowlers for Auckland over a number of seasons and is a skilful death bowler who also offers us a left-arm option. Colin de Grandhomme and Andrew Ellis also played extremely well in the HRV Cup and their all-round skills with bat and ball are well suited to ODI and T20 cricket.
"Tom Latham is an exciting keeper batsman who is very well equipped for short-form cricket and we think he has the potential to make a big impact on the international scene."
The 19-year-old Latham, son of former international Rod Latham, was a top performer throughout the HRV Cup Twenty20 competition and reaffirmed his potential with an impressive 130 off 119 balls in a one-day match against Wellington during the week. He's been touted as a player with considerable international potential and his chance has come early.
Bates has been one of the country's top limited-overs exponents in recent years and was equal-top wicket taker in the HRV Cup with 14 with Auckland teammate Hira who, perhaps more importantly, went for only 5.85 runs per over in the Twenty20 competition.
The drums have been beating this season for Nethula, who provides variation with his leg-spinners.
De Grandhomme combines big hitting at the top of the order as well as useful medium-paced bowling and Ellis is another who can contribute with both bat and ball.
New Zealand one-day squad
Brendon McCullum (c _ Otago), Michael Bates (Auckland), Doug Bracewell (Central Districts), Dean Brownlie (Canterbury), Andrew Ellis (Canterbury), Martin Guptill (Auckland), Tom Latham (Canterbury), Nathan McCullum (Otago), Kyle Mills (Auckland), Tarun Nethula (Central Districts), Rob Nicol (Canterbury), Jacob Oram (Central Districts), Tim Southee (Northern Districts), Kane Williamson (Northern Districts).
New Zealand Twenty20 squad
Brendon McCullum (c _ Otago ), Michael Bates (Auckland), Doug Bracewell (Central Districts), Dean Brownlie (Canterbury), Colin de Grandhomme (Auckland), James Franklin (Wellington), Martin Guptill (Auckland), Ronnie Hira (Auckland), Nathan McCullum (Otago), Kyle Mills (Auckland), Rob Nicol (Canterbury), Jacob Oram (Central Districts), Tim Southee (Northern Districts), Kane Williamson (Northern Districts).
Schedule
Feb 3: First ODI, University Oval, Dunedin - 11am
Feb 6: Second ODI, Cobham Oval, Whangarei - 11am
Feb 9: Third ODI, McLean Park, Napier - 2pm
Feb 11: First T20 international, Eden Park, Auckland - 7pm
Feb 14: Second T20 international, Seddon Park, Hamilton - 7pm