Either of two species (Sphenodon punctatus and S. guntheir) of lizardlike, nocturnal reptiles of the order Rhynchocephalia, found on certain islets of New Zealand.

• 喙头目楔齿蜥属两种爬虫类的统称，它们的体似蜥蜴，夜间活动，仅见于纽西兰的某些小岛上。