A new species of Echimys Cuvier, 1809 (Rodentia, Echimyidae) from Brazil

Authors

  • Gilson Evaristo Iack-Ximenes Universidade de São Paulo; Museu de Zoologia Author
  • Mario de Vivo Universidade de São Paulo; Museu de Zoologia Author
  • Alexandre Reis Percequillo Universidade Federal da Paraíba; Centro de Ciências Exatas e da Natureza; Departamento de Sistemática e Ecologia Author

DOI:

https://doi.org/10.1590/S0031-10492005000500001

Keywords:

Echimyidae, Echimys, arboreal spiny rats, taxonomy, distribution

Abstract

Here we describe a new species of Echimyidae Amazonian rodent, Echimys vieirai sp. nov., based on two individuals from the south bank of Amazon river between the lower Madeira river to the right bank of the Tapajós, respectively in the Brazilian states of Amazonas and Pará, Brazil. The main diagnostic characteristic of this new species is the presence of a dorsal median dark maroon stripe on the head, running from the rostrum to the nape. Skull morphology is quite similar to that of Echimys chrysurus (Zimmermann, 1780), but our new species differ from other species in the genus by the development of the alisphenoid canal and dp4 morphology. Additionally, we offer a refinement of the diagnosis of the genera Echimys and Makalata.

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Published

2005-01-01

Issue

Section

naodefinida

How to Cite

A new species of Echimys Cuvier, 1809 (Rodentia, Echimyidae) from Brazil . (2005). Papéis Avulsos De Zoologia, 45(5), 51-60. https://doi.org/10.1590/S0031-10492005000500001