From the IUCN Red List Species Account:

Range Description

This species is known only from the Sierra de Santa Cruz, eastern Guatemala, from 366-1,150m, though it might occur a little more widely.

Habitat and Ecology

It inhabits undisturbed subtropical moist forest and is found near, and breeds in, streams.

Population

It is a common species within its range.

Population Trend

decreasing

Major Threats

The major threats to this species include habitat loss due to expanding agriculture, wood extraction, and human settlement, and water pollution. Chytridiomycosis is also a potential threat, and declines due to the disease have already been detected amongst other species of this genus in Guatemala (Mendelson et al. 2004).

Conservation Actions

This species has not been found in any protected area, though one has been proposed within its range. In view of the severe risk of chytridiomycosis, the status of this species should be closely monitored, and ex-situ populations might need to be established.

Red List Status

Critically Endangered (CR)

Rationale

Listed as Critically Endangered because its Extent of Occurrence is less than 100km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat in eastern Guatemala, and a projected decline in the number of mature individuals from the effects of chytridiomycosis.

Citation

Manuel Acevedo, Eric Smith 2006. Ptychohyla sanctaecrucis. The IUCN Red List of Threatened Species 2006: e.T55917A11391338. http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55917A11391338.en .Downloaded on 23 February 2019