The eggs and hatchlings of the spiny chuckwalla, Sauromalus hispidus, are described for the first time. Twenty eggs (from a clutch of 21) had a mean size of 28.6 mm (25-30 mm) x 43.8 mm (41-46 mm) and 15 hatched after 94-99 days incubation. The mean SVL of the hatchlings was 72.4 mm (69-77 mm). Coloration and pattern of the hatchlings are described.