A new species of Brachycephalus (Anura: Brachycephalidae) from southern Brazil

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Peerj Inc


A new miniaturized frog of the genus Brachycephalus (Anura: Brachycephalidae) i s described from Morro Santo Anjo in the municipality of Massaranduba, Santa Catarina, southern Brazil. Specimens were collected from the leaf litter between 470 and 540 above sea level. The new species is distinguished from all its congeners by the combination of the following characters: (1) body robust and bufoniform; (2) size snout-vent length 9.9-11.7 mm for males and 10.0-12.9 mm for females; (3) smooth dorsum; (4) general color (in life) orange with white dots and stripe in the middle of the head and along its vertebral column; (5) iris completely black; (6) advertisement call composed of note groups; (7) isolated notes with 1-3 pulses; and (8) short isolated notes (0.002-0.027 s). An estimate of the male density of the new species is also presented. Phylogenetic information indicates that the new species is part of the southernmost Glade of Brachycephalus, which includes Brachycephalus fuscolineatus, B. albolineatus, and B. boticario. The severe anthropogenic impacts in and around the type locality indicate that immediate actions should be taken to ensure the long-term preservation of the new species.



Atlantic forest, Montane forest, Serra do Mar, Brachycephalus pernix group, Linea masculina, Note-centered approach, Brachycephalus mirissimus, Conservation

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Peerj. London: Peerj Inc, v. 6, 27 p., 2018.