Researchers have found a brand new species of frog in Peru, residing excessive within the Andes Mountains. The frog, Osteocephalus vasquezi sp. nov. was discovered within the premontane forests of the Cordillera del Yanachaga, within the Central Peruvian Andes mountains. The frog belongs to the species group Osteocephalus mimeticus and is a sister species to Osteocephalus mimeticus.
It options darkish irises and tuberculate dorsal pores and skin, which is brown in coloration. The three species it’s most just like embrace O. festae, O. mimeticus, and O. verruciger. It’s most just like O. mimeticus, the researchers say, however has a cream or creamy tan venter and brown chocolate blotches and flecks. The tadpoles additionally differ from O. mimeticus in that they’ve a bigger oval disk and 9 labial tooth rows. O. mimeticus as six labial tooth rows. The researchers consider Osteocephalus vasquezi diverged from its sister species in the beginning of the Pleistocene, or ~2.5 million years in the past.
Preserved tadpoles of Osteocephalus vasquezi sp. nov. and O. mimeticus. A–D. Osteocephalus vasquezi stage 33, CORBIDI 24671; E–H. O. mimeticus, stage 33, CORBIDI 24672. A, E. Dorsal view; B, F. Lateral view; C, G. Ventral view; D, H. Oral equipment. Pictures of O. vasquezi by E. Toral and O. mimeticus of L. García-Ayachi.
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The researchers, Pablo J. Venegas, Luis A. García-Ayachi, Eduardo Toral, José Malqui, and Santiago R. Ron confirmed the brand new species utilizing DNA sequences for nuclear and mitochondrial genes. They performed a PCR take a look at to amplify the DNA fragments for mitochondrial genes 12S RNA, CO1, 16S, ND1, and the nuclear gene POMC.
The entire paper, “A brand new species of spiny-backed tree frog, genus Osteocephalus (Anura, Hylidae), from the Yanachaga Chemillén Nationwide Park in central Peru” might be learn on the Evolutionary Systematics web site.
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