Platymantis isarog
{{Short description|Species of amphibian}}
{{speciesbox
| image =
| status = LC | status_system = IUCN3.1
| taxon = Platymantis isarog
| authority = {{interlanguage link|Walter Creighton Brown|fr|lt=Brown}}, Brown, Alcala, and Frost, 1997
| synonyms = {{species list
| Platymantis reticulatus | Brown, Brown, and Alcala, 1997 – homonym of Platymantis reticulatus Zhao and Li, 1984
| Platymantis isarog | Brown, Brown, Alcala, and Frost, 1997 – replacement name }}
}}
Platymantis isarog, sometimes known as the Isarog forest frog, is a species of frog in the family Ceratobatrachidae. It is endemic to southeastern Luzon, Philippines, where it is known from two volcanos, Mount Isarog (its type locality) and Mount Malinao.
Description
Adult males measure {{convert|23|-|28|mm|in|1|abbr=on}} and adult females {{convert|28|-|30|mm|in|1|abbr=on}} in snout–vent length. The snout is broadly rounded. The tympanum is distinct. The fingers have no webbing whereas the toes are webbed. The hind limbs are moderately long. The dorsum has grayish to orange brown background color and is marked with varied darker spots and blotches. Some specimens have a pale vertebral line starting from the beginning on the snout. The hind limbs have dark transverse bars. There are yellowish, brown-ringed {{Linktext|areolation}}s in the groin, on the thighs, and frequently the lower legs. The venter has brown spots or reticulations (this species was originally named as P. reticulatus in reference to the latter).
Habitat and conservation
Platymantis isarog is an arboreal frog that occurs in mossy and montane rainforests at elevations of {{convert|650|–|1800|m|abbr=on}} above sea level. It deposits its eggs on leaves in shrub layer vegetation. The egg have direct development (i.e, there is no free-living larval stage{{cite book|title=Herpetology: An Introductory Biology of Amphibians and Reptiles |edition=4th |first1=Laurie J. |last1=Vitt |first2=Janalee P. |last2=Caldwell |name-list-style=amp |publisher=Academic Press |year=2014 |page=166}}).
This species is common in mid- to upper-montane forests on Mount Isarog, and the population there appears to be stable; it is well-protected by the Mount Isarog National Park. There is geothermal power generation on the slopes of Mount Malinao, but its impact is limited. Thus, despite its limited distribution, this species is not considered threatened by the IUCN SSC Amphibian Specialist Group.
References
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Category:Amphibians of the Philippines
Category:Endemic fauna of the Philippines
Category:Amphibians described in 1997
Category:Taxa named by Angel Chua Alcala
Category:Taxa named by Rafe M. Brown
Category:Taxa named by Walter Creighton Brown