Member of the Centrolene mariae complex (along with C. mariae and C. puyoense). Males of this species are not known. Adult female (holotype) measures 27.5 mm SVL. This species is distinguished from its congeners by the following combination of characters: snout truncate when viewed dorsally and slightly protruding when viewed laterally; all skin surfaces are covered with very fine granulations; the first finger is much longer than the second; prepollex is prominent; webbing is reduce on outer two fingers; ulnar ridge is indistinct.
Head is much wider than body (HW is 36.4% SVL). Snout only slightly sloping, short, truncate above and slightly protuberant in profile. The canthus rostralis is round. Nostrils are nearly terminal on the snout and extremely protuberant, while dorsolaterally oriented. Eyes are large, their diameter measures to be 41.9% of head length. Tympanum directed dorsolaterally and is slightly inclined posteriorly. Finger lengths, in decreasing order, are: 3>1>4>2; lateral fringes present on fingers; webbing absent between first two and second/third fingers; webbing basal between third and fourth. Toes are about one-half webbed. Toe lengths in decreasing order: 4>5>3>2>1. Toe discs are significantly smaller than those on fingers; pads are roundly triangular with apex directed proximally. The vent is a slit formed by a horizontal flap of skin, the opening is oriented ventrally at mid-level of thighs.
In life, the dorsal coloration is a uniform darkish green with very small (~ 1 mm) yellow specks. There is a yellow line along the upper margin of skin surrounding each eye. Ventral coloration is a light bluish-green on chin, silver white across chest and anterior half of body, posteriorly transparent with bluish-green tint. The iris is an iridescent yellow with numerous wavy black lines.
Originally described in the genus Centrolenella, until Duellman and Schulte (1993) moved it to Centrolene.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Peru
Only known from the type locality near Km. 184 in Nuevo Mundo, Cordillera Azul, Provincia Leoncio Prado, Departamento Huánuco, Perú, at 1500 m altitude.
Life History, Abundance, Activity, and Special Behaviors
Nothing known, discovered while in collection.
Possible reasons for amphibian decline
General habitat alteration and loss
Duellman, W.E., Schulte, R. (1993). "New species of centrolenid frogs from northern Peru." Occasional Papers of the Museum of Natural History, The University of Kansas, 155, 1-33.
Flores, G., and McDiarmid, R.W. (1989). ''Two new species of South American Centrolenella (Anura: Centrolenidae) related to C. mariae.'' Herpetologica, 45(4), 401-411.
Originally submitted by: Raul E. Diaz (first posted 2004-08-27)
Edited by: Tate Tunstall (2023-03-08)
Species Account Citation: AmphibiaWeb 2023 Centrolene azulae <https://amphibiaweb.org/species/1715> University of California, Berkeley, CA, USA. Accessed Apr 2, 2023.
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Citation: AmphibiaWeb. 2023. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 2 Apr 2023.
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