| systematics of the osteocephalusbuckleyi species complex (anura, hylidae) from ecuador and peru. | we present a new phylogeny, based on dna sequences of mitochondrial and nuclear genes, for frogs of the genus osteocephalus with emphasis in the osteocephalus buckleyi species complex. genetic, morphologic, and advertisement call data are combined to define species boundaries and describe new species. the phylogeny shows strong support for: (1) a basal position of osteocephalus taurinus + osteocephalus oophagus, (2) a clade containing phytotelmata breeding species, and (3) a clade that correspon ... | 2012 | 23166473 |
| taxonomic revision and phylogenetic position of osteocephalus festae (anura, hylidae) with description of its larva. | osteocephalus festae is an amazonian species recently resurrected from a synonymy with osteocephalus buckleyi. because few specimens are known, its morphological variation, diagnostic characters, and distribution are poorly understood. herein we determine its phylogenetic relationships and provide a complete taxonomic account based on recently collected specimens (adults and larvae) from nine localities in ecuador and peru. osteocephalus festae is most similar to osteocephalus verruciger from wh ... | 2010 | 21594044 |
| chromosome evolution in lophyohylini (amphibia, anura, hylinae). | the hyline tribe lophyohylini includes 87 species of treefrogs, of which cytogenetics aspects have been studied in less than 20% of them. in order to evaluate the evolution of some of its chromosome characters (nor position, c-bands, and dapi/cma3 bands), we studied the karyotypes of 21 lophyohylines, 16 of them for the first time, and analyzed them in a phylogenetic context. most species showed similar karyotypes regarding chromosome number (2n = 24) and morphology (fn = 48), excepting phyllody ... | 2020 | 32525943 |