Tuesday, November 15, 2011

[Herpetology • 2007] 2 new Eleutherodactylus; E. cordovae & E. meridionalis • from the Cordillera Occidental, Northern Peru

Eleutherodactylus cordovae, new species

Two new species of Eleutherodactylus are described from the Cordillera Occidental in northern Peruvian departments of Ancash and La Libertad. The new species from La Libertad is assigned to the Eleutherodactylus orestes Group and inhabits puna at elevations of 3400–4010 m. The Eleutherodactylus orestes Group is redefined. The second new species is assigned to the Eleutherodactylus conspicillatus Group; it represents the southernmost species of Eleutherodactylus in the Cordillera Occidental of the Andes

Fig. 3. Map showing type localities of the new species and the Peruvian members of the Eleutherodactylus orestes Group.

Eleutherodactylus cordovae, new species

Etymology.— The new species is dedicated to our friend and colleague, Jesu´s H. Co´rdova, Curator of Herpetology at the Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru.

Distribution and ecology.— Eleutherodactylus cordovae is known from four localities at elevations of 3400–3985 m between Quiruvilca and Huamachuco (airline distance 37 km) on the eastern slopes of the Cordillera Occidental in northwestern Peru (Fig. 3); calls of E. cordovae were heard up to 4010 m. These localities are in the Puna Ecoregion, as defined by Brack (1986). At the type locality, the dominant vegetation consists of Polylepis sp. and Peruvian Feather Grass (Stipa icchu). All specimens were found under rocks between, or in, clumps of Stipa icchu near small streams. Males called from within clumps of Stipa icchu at 1630–2300 hr.Gastrotheca peruana occurs sympatrically with E. cordovae. Eleutherodactylus cordovae has the local name ‘‘Rana campanita.’’ Rana is the Spanish word for frog, and campanita is the Spanish word for little bell. The local name, ‘‘little bell frog’’, refers to its call, which sounds like a little bell.

Eleutherodactylus meridionalis, new species

Etymology.— The specific name is a Latin adjective meaning southern. The name is used in reference to the species being the southernmost Eleutherodactylus in the Cordillera Occidental.

Distribution and ecology.— Eleutherodactylus meridionalis is known only from the type locality, Caraz (Fig. 4), in the northern part of the Callejo´n de Huaylas in the Rı´o Santa Valley at 2290 m. This area is in the Mountain Steppe (Serranı´a de Esteparia) Ecoregion (Brack, 1986). Nothing is known about the natural history of this frog.

Edgar Lehr and William E. Duellman. 2007. Two New Species of Eleutherodactylus (Anura: Leptodactylidae) from the Cordillera Occidental in Peru. Copeia, 2007(1):140-149.: http://www.bioone.org/doi/abs/10.1643/0045-8511(2007)7%5B140:TNSOEA%5D2.0.CO%3B2