White Lizards in the White Sands of New Mexico. These little lizards aren't exactly a new species but they are a new color! Learn more from professor Erica Bree Rosenblum here and here.
Speaking of lizards, I should give a shout out to the Mwanza Flat Headed Agama (aka Spiderman) lizard too. Not because of newness, but because of newfound popularity thanks to photograher Roy Daines.