Biology:Oreophrynella nigra
| Oreophrynella nigra | |
|---|---|
| |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Bufonidae |
| Genus: | Oreophrynella |
| Species: | O. nigra
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| Binomial name | |
| Oreophrynella nigra | |
Oreophrynella nigra, or pebble toad,[2] is a species of toad in the family Bufonidae. It is endemic to the Guiana Highlands in Bolívar State, Venezuela, and known from two tepuis, Kukenan-tepui and Yuruani-tepui, both belonging to the Eastern Tepuis.[1][3]
Description and behaviour
It is a small species of toad: males measure 16.5–23.5 mm (0.65–0.93 in) and females 20.4–30 mm (0.80–1.18 in) in snout–vent length.[4]
When threatened, the toad folds its limbs under its body, tucks its head in and tenses in a ball shape. If on an incline (this is how it gets its name), this causes it to roll down the slope, escaping the attention of its predator, and looking like a dislodged pebble. Its cryptic black and dark grey coloring that may appear as dark navy blue to some blends with its sandstone habitat.[2]
Habitat and conservation
Its natural habitats are rocks and peat bogs in montane tepui environments at elevations of 2,300–2,700 m (7,500–8,900 ft) asl. It is classified as vulnerable because of its apparently restricted range.[1]
Media interest
This toad was featured on a BBC series, Life, pursued by a tarantula spider.[2]
References
- ↑ 1.0 1.1 1.2 IUCN SSC Amphibian Specialist Group (2020). "Oreophrynella nigra". IUCN Red List of Threatened Species 2020: e.T54852A109530338. doi:10.2305/IUCN.UK.2020-3.RLTS.T54852A109530338.en. https://www.iucnredlist.org/species/54852/109530338. Retrieved 14 November 2021.
- ↑ 2.0 2.1 2.2 Pebble toad's rock and roll life, Matt Walker, BBC, 15 October 2009, Retrieved 6 November 2015
- ↑ Frost, Darrel R. (2015). "Oreophrynella nigra Señaris, Ayarzagüena, and Gorzula, 1994". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. http://research.amnh.org/vz/herpetology/amphibia/Amphibia/Anura/Bufonidae/Oreophrynella/Oreophrynella-nigra.
- ↑ Cite error: Invalid
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External links
Wikidata ☰ Q141781 entry
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