title: A new species of Choerophryne (Anura, Microhylidae) from the central cordillera of Papua New Guinea.
abstract: We describe a new species of very small microhylid frog in the genus Choerophryne from the upper Strickland River area, Western and Southern Highlands Provinces, Papua New Guinea. Choerophryne gracilirostris sp. nov. can be distinguished from congeners by the following combination of characters: small size (SUL 13.5-14.7 mm), moderately long and narrow snout, first finger without expanded disk and advertisement call consisting of 3-5 distinctly pulsed notes repeated in long sequences. Males in the type series were calling from within leaf litter in primary hill rainforest (213-1368 m a.s.l.). The new species is the third Choerophryne known from the southern side of New Guinea's central cordillera. Measurements of a juvenile specimen (rare because most Choerophryne collected are calling males) demonstrate that the distinctive rostral projection of this genus exhibits pronounced positive allometry.
authors.affiliation: South Australian Museum, Adelaide 5000, Australia School of Earth and Environmental Sciences, University of Adelaide, Adelaide, South Australia 5000, Australia; Email: unknown.
authors.forename: Amy
authors.initials: A
authors.lastname: Iannella
authors.affiliation: South Australian Museum, Adelaide 5000, Australia; Email: unknown.
authors.forename: Stephen
authors.initials: S
authors.lastname: Richards
authors.affiliation: Department of Zoology, University of Melbourne, Melbourne, Victoria 3000, Australia Museum Victoria, Melbourne, Victoria 3001, Australia; Email: unknown.
authors.forename: Paul
authors.initials: P
authors.lastname: Oliver
mesh_terms: D000819:Animal Communication; D000818:Animals; D001001:Anura / Q000033:anatomy & histology* / Q000145:classification* / Q000502:physiology; D017753:Ecosystem; D008969:Molecular Sequence Data; D010219:Papua New Guinea; D012336:RNA, Ribosomal, 16S / Q000235:genetics / Q000378:metabolism; D017422:Sequence Analysis, DNA
chemical_list: D012336:RNA, Ribosomal, 16S