Friday, August 26, 2016

[Herpetology • 2016] Pristimantis pulchridormientes • A New Species of Frog of the Genus Pristimantis (Anura, Craugastoridae) from Tingo María National Park, Huánuco Department, central Peru


Pristimantis pulchridormientes  
 Chávez & Catenazzi, 2016


Abstract
A new species of Craugastoridae frog encountered from 1000–1700 m in elevation in the premontane forests of the Peruvian central Andes is described. The new species is similar in appearance to many other species of Pristimantis, but is easily distinguishable from these species by having bright red coloration on the groin, posterior surface of thighs, and shanks. The new species is only known for two localities 27 km apart in the Huánuco Region.

Keywords: Amphibian, Andes, Craugastoridae, premontane forests, taxonomy


Figure 2. Dorsolateral and ventral views (A, B) of the holotype of Pristimantis pulchridormientes sp. n., male CORBIDI 15578, SVL = 21.9 mm, showing detail of (C) coloration on shanks and thighs.
 Photographs by G. Chávez.  DOI: 10.3897/zookeys.610.8507 

Pristimantis pulchridormientes sp. n.

Proposed standard English name: Sleeping Beauty Rain Frog
Proposed standard Spanish name: Rana de lluvia de la Bella Durmiente

Diagnosis: 
The new species is distinguished by the following combination of characters: (1) skin on dorsum finely shagreen, that on venter areolate, discoidal fold absent, dorsolateral folds absent; (2) tympanic membrane and tympanic annulus distinct, weak supratympanic fold covering dorsal and posterior edges of tympanum, horizontal diameter of eye 3x the diameter of tympanum; (3) snout acuminate in dorsal view, truncated and posteroventrally inclined in lateral view, canthus rostralis weakly concave in dorsal view, angular in lateral view, loreal region concave, rostral papilla absent; (4) upper eyelid lacking tubercles, cranial crests absent; (5) dentigerous process of vomers absent; (6) males with vocal sacs and vocal slits, nuptial excrescences absent; (7) finger I and finger II of equal length, fingers II and III bearing rounded discs about 1.5 times wider than digits, finger IV bearing a rounded disc about twice as wide as its digit; (8) fingers with narrow lateral fringes; (9) antebrachial tubercle absent; (10) ulnar and tarsal tubercles absent (11) inner metatarsal tubercle oval twice as long as round outer metatarsal tubercle, low supernumerary plantar tubercles at the base of toes I, II, and III; (12) toes with narrow lateral fringes, webbing absent, toe V longer than toe III; (13) in life, males with dorsum creamy yellow or yellowish brown with dark blotches; canthal stripe creamy white extending to the orbits; throat yellow; belly creamy white; groins, posterior surfaces of thighs, and shanks bright red; iris cream with brown flecks; (14) SVL in adult males 19.1–21.9 mm; SVL in females unknown.

Pristimantis pulchridormientes   Chávez & Catenazzi, 2016 

Figure 2. Dorsolateral and ventral views (A, B) of the holotype of Pristimantis pulchridormientes sp. n., male CORBIDI 15578, SVL = 21.9 mm, showing detail of (C) coloration on shanks and thighs.
Figure 4. Dorsolateral and ventral views of two paratopotypes of Pristimantis pulchridormientes sp. n. showing detail of coloration on shanks and thighs. Male CORBIDI 15563 (A–C), SVL = 21.0 mm. Male CORBIDI 15565 (D–F), SVL = 21.5 mm.

 Photographs by G. Chávez.  DOI: 10.3897/zookeys.610.8507 

Etymology: The name is composed of two words in Latin, “pulcher” which means beautiful, and “dormientes” = sleeping, in reference to the chain of mountains located within Tingo María National Park, above the city of Tingo Maria, locally known as Sleeping Beauty (Bella Durmiente), because it looks like a sleeping reclined woman (Figure 6A).




Germán Chávez and Alessandro Catenazzi. 2016. A New Species of Frog of the Genus Pristimantis from Tingo María National Park, Huánuco Department, central Peru (Anura, Craugastoridae). ZooKeys. 610: 113-130.  DOI: 10.3897/zookeys.610.8507


Resumen: Describimos una nueva especie de rana de la familia Craugastoridae de los bosques premontanos de los Andes centrales peruanos, los especímenes fueron encontrados entre los 1000 – 1700 metros de elevación. Esta especie es similar en apariencia a muchas especies de Pristimantis, sin embargo es facilmente distinguible por tener ingles, superficie posterior de los muslos y de la tibia rojo brillante. La nueva especie es conocida solo de dos localidades en la Región Huánuco, ambas separadas por alrededor de 27 km.

Palabras clave: Anfibio, bosques premontanos, Craugastoridae, Andes, taxonomía


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