Published November 6, 2020 | Version v1
Taxonomic treatment Open

Microakodontomys Hershkovitz 1993

Description

Microakodontomys Hershkovitz 1993

Monotypic genus represented by M. transitorius (Hershkovitz 1993), that inhabits the fringe zone between open grassland and bordering scrubland of the Brazilian Cerrado (Hershkovitz 1993; Prado & Percequillo 2013; Paresque & Hanson 2015).

Karyotype: 2n = 38 and FN = 46. Autosomal complement: five small pairs of biarmed elements, and 13 acrocentric pairs decreasing in size. Sex chromosomes: X, a large submetacentric; Y, a small submetacentric, as mentioned by Paresque & Hanson (2015).

Notes

Published as part of Moreira, Camila Do Nascimento, Ventura, Karen, Percequillo, Alexandre Reis & Yonenaga-Yassuda, Yatiyo, 2020, A review on the cytogenetics of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae), with the description of new karyotypes, pp. 1-111 in Zootaxa 4876 (1) on pages 29-30, DOI: 10.11646/zootaxa.4876.1.1, http://zenodo.org/record/4423612

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Additional details

References

  • Hershkovitz, P. (1993) A new central brazilian genus and species of Sigmodontine rodent (Sigmodontinae) transitional between akodonts and oryzomyines, with a discussion of Muroid molar morphology and evolution. Fieldiana Zoology, 75, 1 - 18. https: // doi. org / 10.5962 / bhl. title. 3370
  • Prado, J. R. & Percequillo, A. R. (2013) Geographic distribution of the genera of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae) in South America: patterns of distribution and diversity. Archivos de Zoologia, 44 (1), 1 - 120. https: // doi. org / 10.11606 / issn. 2176 - 7793. v 44 i 1 p 1 - 120
  • Paresque, R. & Hanson, J. D. (2015) Genus Microakodontomys Hershkovitz, 1993. In: Patton, J., Pardinas, U. F. J. & D'Elia, G. (Eds.), Mammals of South America. 2. Rodents. University of Chicago Press, Chicago, Illinois, pp. 354 - 355.