title: Cryptic species diversity in marsupial frogs (Anura: Hemiphractidae: Gastrotheca) in the Andes of northern Peru.
abstract: Molecular phylogenetic analysis revealed the existence of two undescribed species of the hemiphractid genus Gastrotheca in the Andes in northern Peru. Both species are similar morphologically to Gastrotheca dysprosita and G. monticola, but they differ from these species and from one another in subtleties of coloration and minor variances in size and proportions. Gastrotheca aguaruna sp. nov. (6˚10'50"S, 77˚37'01"W, 2480 m) is from humid forested areas in the northern part of the Cordillera Central, whereas G. aratia sp. nov. (6˚14'00"S, 78˚51'24"W, 2560 m ) is known from the northern part of the Cordillera Occidental.
authors.affiliation: Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045-7561 USA; Email: duellman@ku.edu.
authors.forename: William E
authors.initials: WE
authors.lastname: Duellman
authors.affiliation: Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045-7561 USA; Email: unknown.
authors.forename: Anthony J
authors.initials: AJ
authors.lastname: Barley
authors.affiliation: División de Herpetología, Centro de Ornitolgía y Biodiversidad, Santa Rita No 20 Of. 202, Urb. Huertos de San Antonio, Surco, Lima, Perú; Email: unknown.
authors.forename: Pablo J
authors.initials: PJ
authors.lastname: Venegas
mesh_terms: D000818:Animals; D001001:Anura / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics*; D003710:Demography; D005260:Female; D014644:Genetic Variation; D008297:Male; D010568:Peru; D010802:Phylogeny; D013045:Species Specificity