Thirty-one specimens from 7 lizard species (Cnemidophorus ocellifer, Hemidactylus brasilianus, Hemidactylus mabouia, Iguana iguana, Tropidurus hispidus, Tropidurus semitaeniatus, and Phyllopezus pollicaris) captured in 4 localities at the Caatinga biomes from the states of Ceará and Piauí, northeastern Brazil, were surveyed for endoparasites. Eight nematode species (Parapharyngodon sceleratus, Parapharyngodon sp., Physaloptera lutzi, Physaloptera retusa, Physalopteroides venancioi, Rhabdias sp., Spauligodon oxkutzcabiensis, and Strongyluris oscari) were recovered. We report 6 new host records and 7 new locality records.