Species Description: Brown, Schulte, and Summers. 2006. A new species of Dendrobates (Anura: Dendrobatidae) from the Amazonian lowlands in Peru. Zootaxa 1152: 45-58
© 2008 Dr. Peter Janzen (1 of 13)
Description: Ranitomeya uakarii is a small frog with a snout-vent length of about 15.4 mm (range: 13.04-16.16 mm). The head is slightly narrower than the body, with the widest part of the head occurring between the eyelids. The snout is rounded in dorsal view, slopes in profile, and is truncate ventrally. The canthus rostralis is rounded with a flat or slightly concave loreal region. The tongue is oval-shaped and small, and teeth are lacking. Eyes are very protuberant. The tympanum is round and partially concealed by skin posterodorsally. Hands are small with expanded discs are present on all fingers except finger I. Relative length of fingers is 3>4>2>. Finger III is twice as wide as distal end of adjacent phalanx. A large, round outer metacarpal tubercle is present on the base on the palm, and a smaller inner metacarpal tubercle is found on the base of finger I. Supernumerary tubercles, lateral fringes, and webbing are absent on the hands and feet. Limbs are short. Relative lengths of toes is 4>3>5>2>1. Moderate-sized inner and small outer metatarsal tubercles are moderately protuberant and rounded on the surface. Skin in preservative is completely smooth all over (Brown et al. 2006).
In life, coloration on the dorsum and upper flanks is black with a red-orange vertebral line and red-orange paired dorsolateral stripes. A yellow flank stripe is also present. Hands, feet, limbs, and belly are blue with small, finely reticulated black dots and larger spots. The throat is yellow with black spots and a large black gular spot. The iris is black. In preservative, the dorsolateral and vertebral stripes turn pinkish yellow, while the oblique lateral stripes and throat turn silver-white (Brown et al. 2006).
Distribution and Habitat
Life History, Abundance, Activity, and Special Behaviors
Trends and Threats
Possible reasons for amphibian decline
General habitat alteration and loss
In 2011, the genus Ranitomeya was revised including subdivisions into seven genera by Brown et al (2011).
Brown J.L., Twomey E., Amézquita A., De Souza M.B., Caldwell J.P., Lötters S., Von May R., Melo-Sampaio P.R., Mejía-Vargas D., Perez-Peña P., Pepper M., Poelman E.H., Sanchez-Rodriguez M., and Summers K. (2011). ''A taxonomic revision of the Neotropical poison frog genus Ranitomeya (Amphibia: Dendrobatidae).'' Zootaxa, 3083, 1-120.
Brown, J. 2008. Ranitomeya uakarii. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. www.iucnredlist.org. Downloaded on 28 September 2011.
Brown, J. L., Schulte, R., and Summers, K. (2006). ''A new species of Dendrobates (Anura: Dendrobatidae) from the Amazonian lowlands in Peru.'' Zootaxa, 1152, 45-58.
Written by Monique Picon (mopicon AT gmail.com), UC Berkeley
First submitted 2010-09-30
Edited by Kellie Whittaker, taxonomy updated by Michelle S. Koo (2012-01-26)
Species Account Citation: AmphibiaWeb 2012 Ranitomeya uakarii <http://amphibiaweb.org/species/6725> University of California, Berkeley, CA, USA. Accessed Mar 21, 2019.
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Citation: AmphibiaWeb. 2019. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 21 Mar 2019.
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