Critically Endangered
Pseudoeurycea robertsi
Pseudoeurycea robertsi
Pseudoeurycea robertsi is a salamander in the family Plethodontidae (order Caudata), recorded as Critically Endangered.
Appearance
Females in the type series measured 35–51 mm (1.4–2.0 in) in snout–vent length. The sole male was 49 mm (1.9 in) in SVL. The head is broad, rather flattened, and with truncate snout. There is a significant difference in the dorsal patterns of the Pseudoeurycea robertsi species, specifically in the number and size of the dorsal stripes.
The average adult size of the stripes was found to be around 89.15 mm and ranging from 38.7-117.9mm.
Range and habitat
It is endemic to Mexico and only known from the Nevado de Toluca, near Toluca in the State of Mexico.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Salamanders hide under logs, in seeps, or in caves. They do not commute across a dry valley.
Eggs and damp skin make amphibians quick to vanish from a drained wetland or a forest stripped of litter.
In crisis
Moreover, there are threats to its habitat from tourism, forestry, agricultural and livestock activities, and urbanisation: formerly a national park, Nevado de Toluca is now an Área de protección de Flora y Fauna, conferring a weaker conservation status.
Salamanders disappear when seeps are capped, caves are disturbed, or a pathogen moves through a mountain range.
Pseudoeurycea robertsi is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Pseudoeurycea robertsi, Wikidata item Q2211681. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
