Frogs of Borneo.

Description
A medium-sized frog with a narrow head and pointed snout; reddish-brown to black in color, with a light middorsal stripe running from the groin to the tip of the snout. Females average 40-60 mm SVL, with males ranging from 30-55 mm SVL. Tubercles present in males. A sticky secretion is exuded when disturbed.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Indonesia

	View distribution map in BerkeleyMapper.
	View Bd and Bsal data (3 records).

Found among leaf litter in forested environments over much of southeast Asia (Indonesia, Malaysia, Myanmar, Thailand, and the Philippines; Iskandar, 1998).

Life History, Abundance, Activity, and Special Behaviors
A common species, K. pleurostigma reproduces in water; tadpoles rely on egg yolk for nourishment (Iskandar, 1998).

Possible reasons for amphibian decline

General habitat alteration and loss
Habitat modification from deforestation, or logging related activities
Intensified agriculture or grazing

References

Iskandar, D. T. (1998). The Amphibians of Java and Bali. Research and Development Centre for Biology-LIPI, Bogor, Indonesia.

Species Account Citation: AmphibiaWeb 2007 Kalophrynus pleurostigma: Black-Spotted Narrow-Mouthed Frog <https://amphibiaweb.org/species/2146> University of California, Berkeley, CA, USA. Accessed May 24, 2025.

Citation: AmphibiaWeb. 2025. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 24 May 2025.

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