Xenosaurus fractus, holotype (MZFC 32179). Head scales in (top) dorsal view; (middle) left lateral view; and (bottom) ventral view. Head length = 27.6 mm. Scale bars: 5 mm.

  Part of: Nieto-Montes de Oca A, Sánchez-Vega H, Durán-Fuentes I (2018) A new species of knob-scaled lizard (Xenosauridae, Xenosaurus) from the Sierra Madre Oriental of Puebla, Mexico. ZooKeys 737: 141-160. https://doi.org/10.3897/zookeys.737.15095