Acanthosaura crucigera

Acanthosaura crucigera () is a species of lizard commonly known as the masked spiny lizard , Boulenger's pricklenape, or masked horned tree lizard. They are found in Myanmar, Thailand, Peninsular Malaysia, and Cambodia.
They have a distinct diamond-shaped black mark on the upper side of the neck and measure about in total, snout to tip of the tail.