AMPHIBIAWEB
Oreolalax rugosus
Warty Toothed Toad
family: Megophryidae

AmphibiaChina 中国两栖类.

Conservation Status (definitions)
IUCN (Red List) Status Near Threatened (NT)
CITES No CITES Listing
Other International Status Near Threatened
National Status None
Regional Status None

 

View distribution map using BerkeleyMapper.

   

Description

The male is 47 mm long and the female is 50 mm long. This species has vertical pupils. It lacks a visible tympanum. The upper maxillary is developed. The back is full of spiny tubercles of varying sizes, encircled by black. Back legs are relatively long, with the tibiotarsal articulation extending to the eye. The femoral gland is large and prominent. Digit tips are rounded. The sides of the toe are fringed. The fourth toe is weakly or 1/3 webbed. Dorsal coloration is yellowish brown or light grayish palm. The ventrum of the female is completely spotted with grayish palm, which is not obvious in the male. Limb banding is indistinct. Relatively small spines are present on the backs of the upper arm. The male has thin and dense nuptial spines on the first and second fingers. A pair of small, closely spaced clusters of spines is also present on the chest.

The tadpole is 67 mm in body length and 26 mm in head length. The tail is black, with a rusty, cloudy mark on the upper part of the caudal fin. In the corners of the mouth there are many additional papillae, often possessing small teeth (Fei 1999).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: China

 

View distribution map using BerkeleyMapper.
O. rugosus inhabits southern Sichuan and northern Yunnan, between 1800 and 3300 m above sea level, with an apparently small population (IUCN 2006)[3767]. It is found in mountainous regions, associated with small streams (Fei 1999).

Life History, Abundance, Activity, and Special Behaviors
These toads are primarily terrestrial. During a ten-day period between the middle of April and May, adults breed under rocks in the stream or along the stream, in crevices formed by tree roots. The eggs are stuck to the undersides of rocks. The animal pole of the egg is gray. The tadpoles live in ponds or in the stream in between the cracks in the rocks. They are able to swim against the current (Fei 1999).

Trends and Threats
The major threat is the habitat loss that has resulted from clear-cutting and agricultural expansion. Populations are expected to continue declining (IUCN 2006).

Possible reasons for amphibian decline

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

References

Fei, L. (1999). Atlas of Amphibians of China. Henan Publishing House of Science and Technology, Zhengzhou.

IUCN, Conservation International, and NatureServe. 2006. Global Amphibian Assessment. www.globalamphibians.org. Accessed on 06 July 2007.

IUCN, Conservation International, and NatureServe. 2006. Global Amphibian Assessment: Phyllobates vittatus. <www.globalamphibians.org>. Accessed on 5 May 2008.



Written by Sijie Mao (smao AT berkeley.edu), URAP
First submitted 2007-05-17
Edited by Kellie Whittaker (2007-07-06)

Species Account Citation: AmphibiaWeb 2007 Oreolalax rugosus: Warty Toothed Toad <http://amphibiaweb.org/species/5301> University of California, Berkeley, CA, USA. Accessed Oct 23, 2017.



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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 23 Oct 2017.

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