Sierra de Juárez Worm Salamander

Males measure 30–33 mm (1.2–1.3 in) in snout–vent length. The average tail length is 60 mm (2.4 in). The head is about as wide as the body; the eyes are protuberant. There are 13 costal grooves. The specific name orchileucos, from the Greek orchis (=testicle) and leukos (=white), refers to the white color of the outer epithelial layer of the testes and vasa deferentia in adult males (the latter might have scattered melanocytes). This trait distinguishes it from Pseudoeurycea orchimelas with black testes and vasa deferentia.

Natural habitats of Pseudoeurycea orchileucos are cloud forests. They live in leaf litter terrestrially and fossorially; most specimens have been recovered by turning rocks and stones or in and under rotting logs. The species is threatened by habitat loss (deforestation) caused by expanding subsistence farming and human settlements and by logging. It is a rare, poorly known species.

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