In order of extent of subterranean adaptations: * Trogloxene: frequently uses caves only for shelter or dwelling, forage and hunt outside, do not go deep into caves * Troglodyte: term used for the specific saurian creatures or for trogloxenes that can live their whole life in a cave without full subterranean adaptations * - * Troglophile: troglodytic creatures with significant cave adapations such as reduced pigmentation and vision * Troglobite: a creature that cannot survive outside a cave