dcsimg

Description

provided by AmphibiaWeb articles
Head is not broader than body and wider than long. Snout is short, subacuminate when viewed dorsally and rounded in lateral view. The canthus rostralis is angular, straight or weakly concave. Loreal region is concave and slopes abruptly to the unflared lips. The interorbital region is broad; skin attaches to bone well and reveals the underlying osteology: low cranial crests medial to eyes, bony tubercles between crests. The tympanic annulus is never visible externally. Postrictal tubercles are round and small. Vomerine odontophores are posteromedially placed relative to the choanae, oblique, and each is approximately three times the size of the choana. Odontophores separated medially by a distance uqual to half width of odontophore (each with 4 or 5 teeth in an oblique row). The dorsal skin ranges from smooth to “feebly warty.” Dorsolateral folds are distinct and fragmented posteriorly to sacrum. The region between the dorsolateral folds has many small warts whereas the flanks have large warts. Thenar tubercle is oval and approximately half the size of the bifid palmar tubercle. Fingers have fleshy lateral keels. Tip of thumb is not expanded into a disc whereas fingers II-IV have round discs. Coloration in life is variable, usually the dorsal skin is red to brown with darker brown to black markings. The flanks are paler than the dorsal coloration. The ventral coloration is that of a dirty-cream to salmon. Labial stripes are creamy bronze. The iris is a pale copper with reddish-brown median horizontal streak. Pristimantis gentryi is a member of the P. curtipes group. Pristimantis gentryi most closely resembles E. curtipes in having distinct but small digital discs, bony tubercles on the frontoparietals between the cranial crests, longer hind limbs and in lacking a tympanic annulus. In P. curtipes, the tympanic annulus is fully formed but is covered and concealed by the skin.
license
cc-by-3.0
author
Raul E. Diaz
original
visit source
partner site
AmphibiaWeb articles

Distribution and Habitat

provided by AmphibiaWeb articles
This species is known from the humid subtemperate region of the west Paramo de Apagua, Provincia Cotopaxi, Ecuador at elevations ranging from 2850-3380 m.
license
cc-by-3.0
author
Raul E. Diaz
original
visit source
partner site
AmphibiaWeb articles

Life History, Abundance, Activity, and Special Behaviors

provided by AmphibiaWeb articles
Nuptial pads absent in males. Males collected in July have swollen testes with dark mesorchia (dark brown reticulation or uniform stippling).
license
cc-by-3.0
author
Raul E. Diaz
original
visit source
partner site
AmphibiaWeb articles

Pristimantis gentryi

provided by wikipedia EN

Pristimantis gentryi is a species of frogs in the family Strabomantidae. It is endemic to central Ecuador where it is found in a small area west of the Páramo de Apagua, Cotopaxi Province.[3][4] The specific name gentryi honors Alwyn Gentry, American botanist who perished during his field work in Ecuador.[2][4][5] Common name Pilalo robber frog has been proposed for this species.[4]

Description

Adult males measure 23–29 mm (0.9–1.1 in) and adult females 30–36 mm (1.2–1.4 in) in snout–vent length. The snout is short. Tympanic membrane is absent and tympanic annulus is usually absent. Fingers and toes have narrow lateral keels but no webbing; the digital discs are small but distinct. The dorsum is brown with little pattern, but a pale labial stripe is present. Dorsal skin is smooth to feebly warty; dorsolateral folds are usually distinct. The venter is cream with small brown flecks. The posterior surfaces of the thighs are brown.[2][4]

Habitat and conservation

Pristimantis gentryi inhabits high-altitude (2,850–3,380 m (9,350–11,090 ft) asl) cloud forests, presumably also high-altitude bush lands and grasslands. It is threatened by habitat loss caused by deforestation from agricultural development and human settlement.[1]

References

  1. ^ a b John Lynch, Luis A. Coloma, Santiago Ron (2004). "Pristimantis gentryi". IUCN Red List of Threatened Species. 2004: e.T56613A11504510. doi:10.2305/IUCN.UK.2004.RLTS.T56613A11504510.en. Retrieved 15 November 2021.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ a b c Lynch, J. D. & Duellman, W. E. (1997). "Frogs of the genus Eleutherodactylus in western Ecuador. Systematics, ecology, and biogeography". Special Publication, Natural History Museum, University of Kansas. 23: 1–236.
  3. ^ a b Frost, Darrel R. (2022). "Pristimantis gentryi (Lynch and Duellman, 1997)". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 21 October 2022.
  4. ^ a b c d Frenkel, C.; et al. (2018). Ron, S. R.; Merino-Viteri, A. & Ortiz, D. A. (eds.). "Pristimantis gentryi". Anfibios del Ecuador. Version 2019.0. Museo de Zoología, Pontificia Universidad Católica del Ecuador (QCAZ). Retrieved 5 August 2020.
  5. ^ Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 77. ISBN 978-1-907807-42-8.
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Pristimantis gentryi: Brief Summary

provided by wikipedia EN

Pristimantis gentryi is a species of frogs in the family Strabomantidae. It is endemic to central Ecuador where it is found in a small area west of the Páramo de Apagua, Cotopaxi Province. The specific name gentryi honors Alwyn Gentry, American botanist who perished during his field work in Ecuador. Common name Pilalo robber frog has been proposed for this species.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN