RESUMO
Recent surveys in the Río Negro-Sopladora National Park revealed a striking new species of Hyloscirtus. The new species is easily diagnosed from all other congeners by its large body size (64.9 mm SVL in adult female); broad dermal fringes in fingers and toes; prepollex not projected into a prepollical spine and hidden under thenar tubercle; dorsum greyish-green, with paler-hued reticulum, yellow spots and black speckles; throat, venter, flanks and hidden surfaces of limbs golden-yellow with large black blotches and spots; fingers, toes and webbing yellow with black bars and spots; iris pale pink with black periphery. It is currently known only from its type locality, in the high montane forest on the southern slopes of the Cordillera Oriental of the Andes, southeastern Ecuador. The new species might be related to the H.larinopygion species group based on its morphology.
RESUMO
We describe a new species of Lynchius from the eastern montane forest of southern Ecuador. We also report the occurrence of L. parkeri in Ecuador, on paramos of Yacuri National Park, near the border with Peru. We used morphological and genetic evidence for the description of the new species and the new report of L. parkeri. Phylogenetic analyses were carried out using both maximum likelihood and Bayesian inference on DNA sequences for mitochondrial and nuclear genes. The phylogeny shows that L. simmonsi is sister to a clade composed of the remaining species of Lynchius and that the new species is sister to L. flavomaculatus. The new species has a prominent and heavily ossified head with noticeably spiculate cranial exostosis that easily distinguishes it from all its congeners. The dorsal region and limbs present several reduced subconical and rounded tubercles and pronounced dermal ridges on the dorsum. We also describe the osteology of the new species based on x-rays of the holotype. Only six species of Lynchius, two known to occur in Ecuador (L. flavomaculatus and L. simmonsi). The description of L. megacephalus sp. n. and new record of L. parkeri double the number of known Lynchius in Ecuador and suggest that the diversity of Ecuadorian and Peruvian Lynchius is still underestimated.
Assuntos
Anuros , Animais , Teorema de Bayes , Equador , Peru , FilogeniaRESUMO
We describe a new species of medium-sized (SVL in female = 38.7 mm; in males from 23.8 to 26.4 mm) terrestrial frog of the genus Pristimantis from subtropical forests of the Cordillera of Kutukú, southeastern Ecuador, at elevations of 1581-1820 m. This species, Pristimantis almendariz sp. nov. is assigned to the subgenus Hypodictyon, ridens species series. The new species differs from other species of the ridens series by its distinctive dorsal spots, absence of tympanic membrane, presence of enlarged conical tubercles on the eyelid, prominent inter-orbital tubercle, and silver iris with black reticulations.
Assuntos
Animais , Ecossistema/análise , Especificidade da Espécie , Anuros/classificaçãoRESUMO
We describe a new species of medium-sized (SVL in female = 38.7 mm; in males from 23.8 to 26.4 mm) terrestrial frog of the genus Pristimantis from subtropical forests of the Cordillera of Kutukú, southeastern Ecuador, at elevations of 1581-1820 m. This species, Pristimantis almendariz sp. nov. is assigned to the subgenus Hypodictyon, ridens species series. The new species differs from other species of the ridens series by its distinctive dorsal spots, absence of tympanic membrane, presence of enlarged conical tubercles on the eyelid, prominent inter-orbital tubercle, and silver iris with black reticulations.(AU)