Tropidurus indefatigabilis The Santa Cruz lava lizard (Microlophus indefatigabilis) is a species of lava lizard endemic to the Galapagos island of Santa Cruz.

Females have a more uniform brown body, a bright orange face, and a black mark at shoulder level.

[3] The Harems are kept, and are competed for by males using a pushup ritual to avoid physical injury.

Males have a higher stamina and greater body size compared to the female.

[4] Endemic to Santa Cruz Island, it is found within volcanic rock areas, dry shrublands, dry grasslands, deciduous forests, and urban areas, and prefers shaded locations.