title: A new species of Bachia Gray, 1845 (Squamata: Gymnophthalmidae) from the western Brazilian Amazonia.
abstract: A new species of Bachia of the B. dorbignyi group, Bachia scaea sp. nov., is described from the left bank of the upper Madeira River, at Rondônia state, at the western Brazilian Amazonia. The new species resembles morphologically B. dorbignyi and B. peruana, and seems to be related with the former species based on molecular data (16S and c-mos sequences). Nonetheless the presence of a first temporal separating parietal and supralabial scales and the absence of clawed fingers in the new species, can promptly distinguish it from their close relatives. This description ends with several-decades of stasis in the taxonomy of the Bachia dorbignyi group from Amazonian lowlands, and also presents new evidence that supports the Madeira River as a vicariant barrier.
authors.affiliation: Laboratório de Herpetologia, Depariamento de Zoologia, Institito de Biociências, Universidade de São Paulo, CEP 05508-090, São Paulo, SP Brazil. tropidurus@gmail.com
authors.forename: Mauro
authors.initials: M
authors.lastname: Teixeira
authors.forename: Francisco
authors.initials: F
authors.lastname: Dal Vechio
authors.forename: Pedro M Sales
authors.initials: PM
authors.lastname: Nunes
authors.forename: Antonio
authors.initials: A
authors.lastname: Mollo Neto
authors.forename: Luciana Moreira
authors.initials: LM
authors.lastname: Lobo
authors.forename: Luis Fernando
authors.initials: LF
authors.lastname: Storti
authors.forename: Renato Augusto
authors.initials: RA
authors.lastname: Junqueira
authors.forename: Pedro Henrique Freire
authors.initials: PH
authors.lastname: Dias
authors.forename: Miguel Trefaut
authors.initials: MT
authors.lastname: Rodorigues
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D001938:Brazil; D017753:Ecosystem; D005260:Female; D008116:Lizards / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D008297:Male; D009929:Organ Size