Hyloxalus exasperatus

Hyloxalus exasperatus is a species of frog in the family Dendrobatidae. It is endemic to Ecuador and found on the eastern slopes of the Andes in Pastaza and Morona-Santiago Provinces.[3][4] However, it is suggested that specimens from Pastaza represent a different, possibly undescribed species.[4]

Hyloxalus exasperatus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dendrobatidae
Genus: Hyloxalus
Species:
H. exasperatus
Binomial name
Hyloxalus exasperatus
(Lynch and Duellman, 1988)
Synonyms

Colostethus exasperatus Duellman and Lynch, 1988[2]

Description

Males measure 17.5–20 mm (0.69–0.79 in) and females 21 mm (0.83 in) in snout–vent length (based on only six and two specimens, respectively). Toe webbing is absent but it has a dorsolateral stripe and a short oblique lateral stripe. It is similar to Hyloxalus whymperi but lacks heavy darkening on the abdomen of males.[4][5] Male call is unknown.[5]

Habitat and conservation

Its natural habitats are pluvial premontane and very humid premontane forests. Its altitudinal range is 970–1,981 m (3,182–6,499 ft) asl. It is threatened by habitat loss and degradation caused by agricultural expansion and logging; introduced species might also be a threat.[1]

References
  1. Coloma, L.A.; Ron, S.; Grant, T. & Morales, M. (2004). "Hyloxalus exasperatus". IUCN Red List of Threatened Species. 2004: e.T55077A11236033. doi:10.2305/IUCN.UK.2004.RLTS.T55077A11236033.en. Retrieved 10 January 2018.
  2. Duellman, William E.; Lynch, John D. (1988). "Anuran amphibians from the Cordillera de Cutucú, Ecuador". Proceedings of the Academy of Natural Sciences of Philadelphia. 140 (2): 125–142. JSTOR 4064938.
  3. Frost, Darrel R. (2014). "Hyloxalus exasperatus (Duellman and Lynch, 1988)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 23 March 2015.
  4. Coloma, LA; Ortiz, DA & Frenkel, C. (2013). "Hyloxalus exasperatus". Ron, S. R., Guayasamin, J. M., Yanez-Muñoz, M. H., Merino-Viteri, A., Ortiz, D. A. y Nicolalde, D. A. 2014. AmphibiaWebEcuador. Version 2014.0. Museo de Zoología, Pontificia Universidad Católica del Ecuador (QCAZ). Retrieved 23 March 2015.
  5. Coloma, L. A. (1995). "Ecuadorian frogs of the genus Colostethus (Anura: Dendrobatidae)". Miscellaneous Publication, Museum of Natural History, University of Kansas. 87: 1–72.
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