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Volume 82, Issue 2


Phylogenetic position of the Ancash leaf-eared mouse Phyllotis definitus Osgood 1915 (Rodentia: Cricetidae)

Edgardo M. RengifoORCID iD: http://orcid.org/0000-0003-1467-1035
  • Corresponding author
  • Centro de Investigación Biodiversidad Sostenible (BioS), Francisco de Zela 1556, Lima 14, Lima, Peru
  • Departamento de Mastozoología, Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos. Av. Arenales 1256, Lima 14, Lima, Peru
  • Universidade de São Paulo, Escola Superior de Agricultura “Luiz de Queiroz”, Centro de Energia Nuclear na Agricultura, Programa de Pós-Graduação Interunidades em Ecologia Aplicada. Avenida Pádua Dias, 11, São Dimas, CEP 13418-900, Piracicaba, SP, Brasil
  • orcid.org/0000-0003-1467-1035
  • Email
  • Other articles by this author:
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/ Victor Pacheco
  • Departamento de Mastozoología, Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos. Av. Arenales 1256, Lima 14, Lima, Peru
  • Instituto de Ciencias Biológicas “Antonio Raimondi”, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
  • Other articles by this author:
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Published Online: 2017-06-13 | DOI: https://doi.org/10.1515/mammalia-2016-0138


The phylogenetic position of the Ancash leaf-eared mouse Phyllotis definitus remains unresolved, as this species has been considered to be related to Phyllotis magister, Phyllotis xanthopygus or Phyllotis andium by several authors. The objective of this study was to clarify the phylogenetic position of P. definitus using 801 base pairs of cytochrome b sequences. A matrix constituted by 43 specimens was subjected to maximum likelihood, maximum parsimony and Bayesian inference analyses. Our results indicate that P. definitus is a member of the “andium/amicus” group and is closely related to Phyllotis pearsoni, supporting a set of chromosomal and morphological characters previously identified for this group.

Keywords: Cordillera Negra; Peru; Phyllotis; sigmodontinae


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About the article

Received: 2016-09-16

Accepted: 2017-04-26

Published Online: 2017-06-13

Published in Print: 2018-02-23

Citation Information: Mammalia, Volume 82, Issue 2, Pages 153–166, ISSN (Online) 1864-1547, ISSN (Print) 0025-1461, DOI: https://doi.org/10.1515/mammalia-2016-0138.

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