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.[2]
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.[3]
Habitat and conservationedit
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 interestedit
This toad was featured on a BBC series, Life, pursued by a tarantula spider.[3]
Referencesedit
^ abcIUCN 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. Retrieved 14 November 2021.
^ abSeñaris, J. C.; J. Ayarzagüena & S. J. Gorzula (1994). "Los sapos de la familia Bufonidae (Amphibia: Anura) de las tierras altas de la Guayana Venezolana: Descripción de un nuevo genero y tres especies". Publicaciones de la Asociación de Amigos de Doñana. 3: 1–37.
^ abcPebble 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. Retrieved 8 November 2015.
External linksedit
Wikispecies has information related to Oreophrynella nigra.
January 01, 1970
oreophrynella, nigra, pebble, toad, species, toad, family, bufonidae, endemic, guiana, highlands, bolívar, state, venezuela, known, from, tepuis, kukenan, tepui, yuruani, tepui, both, belonging, eastern, tepuis, conservation, status, vulnerable, iucn, scientif. Oreophrynella nigra or pebble toad 3 is a species of toad in the family Bufonidae It is endemic to the Guiana Highlands in Bolivar State Venezuela and known from two tepuis Kukenan tepui and Yuruani tepui both belonging to the Eastern Tepuis 1 4 Oreophrynella nigra Conservation status Vulnerable IUCN 3 1 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Amphibia Order Anura Family Bufonidae Genus Oreophrynella Species O nigra Binomial name Oreophrynella nigraSenaris Ayarzaguena es and Gorzula 1994 2 Contents 1 Description and behaviour 2 Habitat and conservation 3 Media interest 4 References 5 External linksDescription and behaviour editIt 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 2 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 3 Habitat and conservation editIts 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 editThis toad was featured on a BBC series Life pursued by a tarantula spider 3 References edit a b c 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 Retrieved 14 November 2021 a b Senaris J C J Ayarzaguena amp S J Gorzula 1994 Los sapos de la familia Bufonidae Amphibia Anura de las tierras altas de la Guayana Venezolana Descripcion de un nuevo genero y tres especies Publicaciones de la Asociacion de Amigos de Donana 3 1 37 a b c Pebble toad s rock and roll life Matt Walker BBC 15 October 2009 Retrieved 6 November 2015 Frost Darrel R 2015 Oreophrynella nigra Senaris Ayarzaguena and Gorzula 1994 Amphibian Species of the World an Online Reference Version 6 0 American Museum of Natural History Retrieved 8 November 2015 External links edit nbsp Wikispecies has information related to Oreophrynella nigra Retrieved from https en wikipedia org w index php title Oreophrynella nigra amp oldid 1205055434, wikipedia, wiki, book, books, library,
