Tylototriton asperrimus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Tylototriton asperrimus
Species Authority: Unterstein, 1930
Common Name(s):
English Black Knobby Newt, Granular Newt, Mount Yao Newt
Echinotriton asperrimus (Unterstein, 1930)
Pleurodeles asperrimus (Unterstein, 1930)
Yaotriton asperrimus (Unterstein, 1930)

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor(s): van Dijk, P.P., Truong, N., Wai Neng Lau, M., Ermi, Z. & Shunqing, L.
Reviewer(s): Stuart, S.N., Chanson, J.S. & Cox, N.A.
Listed as Near Threatened because this species is in significant decline (but at a rate of less than 30% over ten years) because it is being over-harvested and is suffering from habitat loss and degradation, making the species close to qualifying for Vulnerable.

Geographic Range [top]

Range Description: This species ranges mainly in central and southern China (Guangxi, Guangdong, Guizhou, Hunan and Anhui Provinces), from about 400-1,700m asl. There are also records from Lao Cai and Ha Giang Provinces in northern Viet Nam (these are still considered to belong to Tylototriton asperrimus, though it is possible that they might refer to an undescribed species (Nguyen Quang Truong pers. comm.). Other Vietnamese records (i.e., Fleck, 2003; Nguyen and Ho, 1996; Nguyen et al, 2005) from Bac Giang and Cao Bang Provinces, and probably also those from Tam Dao National Park in Vinh Phu Province, in Viet Nam, refer to T. vietnamensis (Böhme et al., 2005; Nguyen Quang Truong pers. comm.).
China; Viet Nam
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This was formerly a common species, but it is now in decline.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It inhabits small temporary shallow pools in bamboo and primary forest in hilly areas. Eggs are found in leaf-litter beside the pools, and the larvae develop in the water.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The major threat to this species in China is harvesting for its use in traditional medicine (it is a substitute for Gecko gecko, which is a widely used medicine). Habitat loss and degradation, arising from small holder agriculture and subsistence wood collecting, is also a threat to this species.

Conservation Actions [top]

Conservation Actions: In China the range of this species overlaps with several protected areas. It is listed as a class II protected species under China's wild animal protection law. Determination of the occurrence, distribution and population status of this species in Viet Nam is required, as well as the effective protection of the remaining forest habitat.

Citation: van Dijk, P.P., Truong, N., Wai Neng Lau, M., Ermi, Z. & Shunqing, L. 2008. Tylototriton asperrimus. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 28 March 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided