The Xindi-Reptilians are one of the five spacefaring species that formed the Xindi society in the 22nd century. Like the name suggests, they are a reptilianoid humanoid species with scaly skin and cold blood, and are also the most distrustful and warlike of the Xindi species. Like all Xindi, they possess a pair of small ridges on the cheeks. They often show signs of open hostility towards the Xindi-Primates, and tend to see their kind as superior to mammalian species. Within the Xindi Council, they are in close alliance with the Xindi-Insectoids, with whom they share most of their technology.