The Sierra Juarez hidden salamander (Thorius adelos), also known as the Sierra Juarez moss salamander, or simply Sierra Juarez salamander, is a species of salamander in the family Plethodontidae. It is endemic to the Caribbean slopes of the Sierra de Juarez and Sierra Mazateca, Oaxaca, Mexico. Description The holotype of Thorius adelos (an adult male) measures in snout–vent length and has a long tail. The dorsum and tail are brown. There is a dorsal, cream-coloured stripe on both sides. The snout is blunt with slightly upward-tilted nostrils. Habitat and conservation Thorius adelos is a very rare species only found in undisturbed cloud forests at elevations of above sea level. It is found in bromeliads and other epiphytic plants and in leaf-litter. It is threatened by habitat loss caused by logging, expanding agriculture, and human settlements. References Thorius Salamander, Sierra Juarez hidden Fauna of the Sierra Madre de Oaxaca Endangered biota of Mexico Endangered fauna of North America Amphibians described in 1987 Taxa named by David B. Wake Taxonomy articles created by Polbot