Rhaebo olallai

Rhaebo olallai is a species of toad in the family Bufonidae endemic to Ecuador. Its common name is Tandayapa Andes toad, after its type locality, Tandayapa, in the Pichincha Province);[2] the species has not been seen there after 1970, despite search efforts.[3][4] It is only known from another locality in the Imbabura Province of Ecuador (Manduriacu River).[2][3][5] It has also been reported from one locality on the Colombian Massif, Nariño Department, Colombia, but these have been shown to represent Rhaebo colomai.[4]

Rhaebo olallai
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Bufonidae
Genus: Rhaebo
Species:
R. olallai
Binomial name
Rhaebo olallai
(Hoogmoed, 1985)
Synonyms

Andinophryne olallai Hoogmoed, 1985

Description

Rhaebo olallai are medium-sized toads: males measure 37–38 mm (1.5–1.5 in) and females 57–60 mm (2.2–2.4 in) in snout–vent length. Dorsum is coffee-coloured. The parotoid glands are enlarged and conspicuous. Flanks have conspicuous glands, distributed linearly or irregular patterns.[5]

Habitat and conservation

Its natural habitat are tropical premontane forests of western foothills of the Andes.[5] All individuals of the Manduriacu River population were found near small forest streams, perched on branches or leaves, on average 1.4 metres but up to 4 metres over ground.[3]

It is threatened by habitat loss caused by agriculture and logging,[1] and by mining and hydropower. Only one population is known. The species is classified as "Critically Endangered".[4]

References
  1. IUCN SSC Amphibian Specialist Group 2019. Rhaebo olallai. The IUCN Red List of Threatened Species 2019: e.T54463A49340530. https://doi.org/10.2305/IUCN.UK.2019-1.RLTS.T54463A49340530.en. Downloaded on 22 July 2019.
  2. Frost, Darrel R. (2015). "Rhaebo olallai (Hoogmoed, 1985)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 18 September 2015.
  3. Lynch, R.L.; Kohn, S.; Ayala-Varela, F.; Hamilton, P.S.; Ron, S.R. (2014). "Rediscovery of Andinophryne olallai Hoogmoed, 1985 (Anura, Bufonidae), an enigmatic and endangered Andean toad" (PDF). Amphibian & Reptile Conservation (Special section). 8 (1): 1–7.
  4. Ron, Santiago R.; Mueses-Cisneros, Jonh Jairo; Gutiérrez-Cárdenas, Paul David Alfonso; Rojas-Rivera, Alejandra; Lynch, Ryan L.; Rocha, Carlos F. Duarte; Galarza, Gabriela (2015). "Systematics of the endangered toad genus Andinophryne (Anura: Bufonidae): phylogenetic position and synonymy under the genus Rhaebo". Zootaxa. 3947 (3): 347–366. doi:10.11646/zootaxa.3947.3.3. PMID 25947741.
  5. Ron, S. R.; Varela-Jaramillo, A.; Frenkel, C. (2013–2015). "Rhaebo olallai". 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 18 September 2015.
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