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Two New Species of Ischnocnema (Anura: Brachycephalidae) from Southeastern Brazil and their Phylogenetic Position within the I. guentheri Series

Two New Species of Ischnocnema (Anura: Brachycephalidae) from Southeastern Brazil and their... Abstract:We describe two new species of Ischnocnema from the states of Minas Gerais and Esprito Santo, southeastern Brazil, based on morphological, bioacoustical, and molecular data. We use three mitochondrial and two nuclear genes in Bayesian inference and maximum likelihood analyses to assess their phylogenetic placement within the I. guentheri series. The two new species group with I. oea in a well-supported clade in both analyses and have a calcar tubercle that is at least as long as wide. This type of tubercle seems to be a putative synapomorphy for the clade. We provide a revised diagnosis for the I. guentheri series, with characters shared by all its members, and discuss the close relationship between the I. parva and the I. guentheri series. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Herpetological Monographs Allen Press

Two New Species of Ischnocnema (Anura: Brachycephalidae) from Southeastern Brazil and their Phylogenetic Position within the I. guentheri Series

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Publisher
Allen Press
Copyright
2018 by The Herpetologists' League, Inc.
ISSN
0733-1347
eISSN
1938-5137
DOI
10.1655/HERPMONOGRAPHS-D-16-00014.1
Publisher site
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Abstract

Abstract:We describe two new species of Ischnocnema from the states of Minas Gerais and Esprito Santo, southeastern Brazil, based on morphological, bioacoustical, and molecular data. We use three mitochondrial and two nuclear genes in Bayesian inference and maximum likelihood analyses to assess their phylogenetic placement within the I. guentheri series. The two new species group with I. oea in a well-supported clade in both analyses and have a calcar tubercle that is at least as long as wide. This type of tubercle seems to be a putative synapomorphy for the clade. We provide a revised diagnosis for the I. guentheri series, with characters shared by all its members, and discuss the close relationship between the I. parva and the I. guentheri series.

Journal

Herpetological Monographs – Allen Press

Published: Dec 15, 2018

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