Ptychadena porosissima 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Ptychadenidae

Scientific Name: Ptychadena porosissima (Steindachner, 1867)
Common Name(s):
English Grassland Ridged Frog
Taxonomic Source(s): Frost, D.R. 2013. Amphibian Species of the World: an Online Reference. Version 5.6 (9 January 2013). Electronic Database. American Museum of Natural History, New York, USA. Available at:

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2013
Date Assessed: 2013-07-11
Assessor(s): IUCN SSC Amphibian Specialist Group
Reviewer(s): Stuart, S.N.
Contributor(s): Channing, A., Poynton, J., Howell, K., Minter, L., Largen, M.J. & Lötters, S.
Facilitator/Compiler(s): Morris, E.J.
Listed as Least Concern in view of its very wide distribution, its tolerance of a broad range of habitats and its presumed large population.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species ranges from eastern and northern South Africa, north to Angola, southern Democratic Republic of Congo, Rwanda, Uganda and Kenya, with an apparently isolated population south of Lake Tana, at 1,900 m asl in Ethiopia. It has not been recorded from Burundi, but it is likely to occur in this country and it is included in the species' distribution on the map. Isolated records in Kenya from Katera south of Mount Kenya, and from Nyahururu north of the Aberdare Mountains require confirmation. It occurs mostly in cooler regions, and is generally found above 1,200 m asl in the tropical parts of its range.
Countries occurrence:
Angola; Congo, The Democratic Republic of the; Ethiopia; Kenya; Malawi; Rwanda; South Africa; Swaziland; Tanzania, United Republic of; Uganda; Zambia; Zimbabwe
Additional data:
Lower elevation limit (metres):1200
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is generally common where it occurs. Its status in Ethiopia is unclear, since there have been no records since 1902.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:Unknown

Habitat and Ecology [top]

Habitat and Ecology:It is a species of moist grassland, savannah and forest, often at higher altitudes. It is an adaptable species that can survive in altered habitats. The Ethiopian locality is in an area of montane grassland and lakeshore habitats. The eggs are laid in shallow grassy, temporary pools.
Systems:Terrestrial; Freshwater

Use and Trade [top]

Use and Trade:

There are no reports of this species being utilized.

Threats [top]

Major Threat(s): It is an adaptable species that is not facing any significant threats, except in localized situations.

Conservation Actions [top]

Conservation Actions: It occurs in several protected areas.

Citation: IUCN SSC Amphibian Specialist Group. 2013. Ptychadena porosissima. The IUCN Red List of Threatened Species 2013: e.T58519A3070008. . Downloaded on 15 October 2018.
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