Pristimantis vilarsi

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Pristimantis vilarsi
Pristimantis aff. vilarsi.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Strabomantidae
Genus: Pristimantis
Species:
P. vilarsi
Binomial name
Pristimantis vilarsi
(Melin, 1941)
Synonyms [2]
  • Hylodes vilarsiMelin, 1941
  • Hylodes roseusMelin, 1941
  • Eleutherodactylus vilarsi(Melin, 1941)
  • Eleutherodactylus brachypodiusRivero, 1961
  • * Eleutherodactylus rosmelinusGorham, 1966
  • Eleutherodactylus stegolepisSchlüter and Rödder, 2007 "2006"
  • Eleutherodactylus conspicillatus ileamazonicusRivero, 1961
  • Eleutherodactylus conspicillatus guayanensisRivero, 1968 "1967"

Pristimantis vilarsi, also known as the Rio Uaupes robber frog, is a species of frog in the family Strabomantidae. It is found in the upper Amazon basin in Brazil, Peru, Colombia, and Venezuela. [1] [2] [3]

Contents

Description

Adult males measure 23–33 mm (0.91–1.30 in) and adult females 31–49 mm (1.2–1.9 in) in snout–vent length. Dorsal skin is shagreened and has scattered small warts, but ventral skin smooth. The tympanum is prominent and vertically oval. The snout is subacuminate to acuminate in dorsal view, but round in vertical profile. The canthus rostralis is distinct and angular. Fingers and toes bear discs (enlarged on fingers III and IV and toes IV and V) but have no webbing. Males have vocal slits. [4]

There are three color patterns: (1) dorsum greenish gray, light to dark brown, without pattern or with very small black spots, (2) strongly patterned dorsum with brown to olive background and bearing a "W" mark between the shoulders, as well as diagonal dark brown stripes across the body and limbs, and (3) an intermediate form showing light to dark brown dorsum with indistinct bars, with or without the W between the shoulders, and sometimes with a lichen-like pattern. All forms have dark brown canthal and supratympanic stripes. [4]

Habitat and conservation

Pristimantis vilarsi lives in the leaf litter of lowland rainforests at elevations of 100–1,230 m (330–4,040 ft) above sea level (200–600 m (660–1,970 ft) in Colombia [3] ). During the night they can be found on low plants, leaves, rocks, mossy walls, and on the ground. Males call at night. The egg deposition site is unknown. It appears to tolerate some disturbance of its habitat. It is a common species whose range overlaps with several protected areas. [1]

Related Research Articles

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<i>Pristimantis leptolophus</i> Species of frog

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<i>Pristimantis scopaeus</i> Species of frog

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Pristimantis jamescameroni is a species of frog belonging to the family Strabomantidae. It is an orange-brown coloured small frog reported so far only from the Aprada-tepui, a table-top mountain in Bolívar state, Venezuela. It was discovered in June 2012 and formally described in October 2013 by Belgian biologist Philippe J. R. Kok at the Royal Belgian Institute of Natural Sciences and Vrije Universiteit Brussel. The species was named after the Hollywood filmmaker James Cameron, in recognition of his efforts in environmental awareness, and in addition to his public promotion of veganism as a way of animal conservation. Due to its restricted occurrence, the species could be classified as "endangered" according to the criteria of the IUCN Red List of Threatened Species.

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References

  1. 1 2 3 Cesar Barrio-Amorós (2008). "Pristimantis vilarsi". IUCN Red List of Threatened Species . 2008: e.T57044A11573624. doi: 10.2305/IUCN.UK.2008.RLTS.T57044A11573624.en . Retrieved 14 November 2021.
  2. 1 2 Frost, Darrel R. (2022). "Pristimantis vilarsi (Melin, 1941)". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. Retrieved 4 November 2022.
  3. 1 2 Acosta Galvis, A. R.; D. Cuentas (2017). "Pristimantis vilarsi (Melin, 1941)". Lista de los Anfibios de Colombia V.07.2017.0. www.batrachia.com. Retrieved 24 August 2017.
  4. 1 2 Barrio-Amorós, C. L.; Molina, C. R. (2006). "A new Eleutherodactylus (Anura: Brachycephalidae) from the Venezuelan Guayana, and redescription of Eleutherodactylus vilarsi (Melin)" (PDF). Zootaxa. 1302: 1–20. doi:10.11646/zootaxa.1302.1.1.