As with other high-energy beaches, those of North Carolina harbor a diverse fauna of kalyptorhynch turbellarians, most of which appear to be new to science. Here, we describe Lehardyia alleithoros, a new kalyptorhynch turbellarian of the Karkinorhynchidae, from 3 high-energy beach sites in North Carolina. We also report an apparent range extension for Carcharodorhynchus flavidus Brunet, 1967. These observations bring the total number of kalyptorhynch turbellarians reported from the marine interstitial environment of North Carolina to five.