This species is known only from two locations in northern Jitotol, north-central Chiapas, Mexico, at 1,200-1,550m asl. It is presumed to occur between the known localities in appropriate habitat, but further data are required.
Habitat and Ecology
It inhabits cloud forest, and seems to require microclimates with very high humidity. It has been found at roadsides, but it is not known whether or not it can live in disturbed habitats. It is terrestrial and reproduces by direct development.
It is likely to be very rare; only 3-4 specimens of this species are known and recent surveys have failed to record any specimens.
The major threat is habitat loss due to expanding agriculture and human settlements, and also logging.
It has not been recorded from any protected areas, and there is therefore an urgent need for the protection of the cloud forest habitat of this species. Survey work is necessary to determine its current population status.
Red List Status
Listed as Vulnerable because its Extent of Occurrence is less than 20,000 km2, all individuals are in fewer than five locations, and there is continuing decline in the extent and quality of its habitat in Chiapas, Mexico.
Gabriela Parra-Olea, David Wake, James Hanken 2008. Cryptotriton alvarezdeltoroi. The IUCN Red List of Threatened Species 2008: e.T59234A11904228. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T59234A11904228.en .Downloaded on 18 January 2019