Hyloxalus sauli

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Hyloxalus sauli
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dendrobatidae
Genus: Hyloxalus
Species: H. sauli
Binomial name
Hyloxalus sauli
(Edwards, 1974)

Colostethus sauli Edwards, 1974

Hyloxalus sauli is a species of frogs in the family Dendrobatidae. It is found on the eastern Andean slopes in the Putumayo, Colombia, and in Sucumbíos, Napo, Orellana, and Pastaza Provinces, Ecuador.[2][3][4] It is named after William Saul from the University of Kansas Natural History Museum.[4]


Males measure 20–25 mm (0.79–0.98 in) and females 22–29 mm (0.87–1.14 in) in snout–vent length. Dorsum and flanks are coffee-coloured; dorsum has three large blotches. There is a complete, pale oblique lateral stripe. Most individuals also have a ventrolateral stripe that is complete, diffuse, or interrupted.[4][5]


Male call is a series of two or three quickly repeated peeps.[6] Males and females form pairs and defend territories that can be stable over several months. These are defined by deep burrows used as shelter. Fecundity of females is 6–11 oocytes (based on three females), whereas males have been recorded carrying clutches of 9–13 tadpoles.[4]

Habitat and conservation[edit]

Its natural habitats are primary and secondary forests. It lives under leaf-litter near streams and on overhanging banks of permanent streams.[1][4]

Hyloxalus sauli is relatively widespread but uncommon species. It is assessed as being of "Least Concern", but habitat loss and degradation can be localized threats.[1]


  1. ^ a b c Castro, F.; Rueda, J.V.; Bolívar, W.; Estupinan, R.A. & Almandáriz, A. (2004). "Hyloxalus sauli". The IUCN Red List of Threatened Species. IUCN. 2004: e.T55148A11261110. doi:10.2305/IUCN.UK.2004.RLTS.T55148A11261110.en. Retrieved 10 January 2018.
  2. ^ Frost, Darrel R. (2015). "Hyloxalus sauli (Edwards, 1974)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 29 March 2015.
  3. ^ Acosta-Galvis, A.R. (2014). "Hyloxalus sauli (Edwards, 1974)". Lista de los Anfibios de Colombia V.05.2015.0. www.batrachia.com. Retrieved 29 March 2015.
  4. ^ a b c d e Ron, S. R.; Ortiz, D. A.; Coloma, L. A. & Frenkel, C. (2013). "Hyloxalus sauli". Ron, S. R., Guayasamin, J. M., Yanez-Muñoz, M. H., Merino-Viteri, A., Ortiz, D. A. and Nicolalde, D. A. 2014. AmphibiaWebEcuador. Version 2014.0. Museo de Zoología, Pontificia Universidad Católica del Ecuador (QCAZ). Retrieved 29 March 2015.
  5. ^ Páez-Vacas, M.; L. A. Coloma & J. C. Santos (2010). "Systematics of the Hyloxalus bocagei complex (Anura: Dendrobatidae), description of two new cryptic species, and recognition of H. maculosus". Zootaxa. 2711: 1–75.
  6. ^ Coloma, L. A. (1995). "Ecuadorian frogs of the genus Colostethus (Anura: Dendrobatidae)". Miscellaneous Publication, Museum of Natural History, University of Kansas. 87: 1–72.