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New records of Cryptonanus guahybae (Tate, 1931) in southern Brazil inferred from molecular and morphological data

  • Dayse Dias EMAIL logo , Carlos Fonseca , Jorge José Cherem , Maurício Eduardo Graipel , Alexandre Uarth Christoff and Rita Gomes Rocha
Published/Copyright: March 6, 2015
Mammalia
From the journal Mammalia Volume 80 Issue 2

Abstract

The small didelphid marsupial Cryptonanus guahybae was described as a subspecies of Gracilinanus microtarsus and was so far considered endemic to the state of Rio Grande do Sul, southern Brazil. We used morphological data to identify Cryptonanus specimens from the states of Santa Catarina and Paraná, deposited in two Brazilian mammal collections. The cytochrome b sequences of our samples formed a well-supported monophyletic group with low intraspecific genetic divergence. This clade showed high interspecific genetic divergence regarding sequences of the two other species of Cryptonanus that occur in Brazil, C. agricolai and C. chacoensis. Diagnostic morphological characters, such as reddish brown dorsal fur, mammary count (7-1-7=15), small molars, and the presence of a complete anterior cingulum on M3, confirm the identification of 20 specimens from southern Brazil as C. guahybae. Considering the morphological diagnoses and the monophyletic and divergent condition of the cytochrome b sequences, it is suitable that these represent the first molecular data for the species. Our results allowed the expansion of the known distribution of C. guahybae throughout the Atlantic Forest phytophysiognomies of the states of Santa Catarina and Paraná.

Keywords: Atlantic Forest; cytochrome b; geographic distribution; Pampa; Thylamyini
Corresponding author: Dayse Dias, Departamento de Biologia and CESAM, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Departamento de Ecologia e Zoologia, Centro Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário Reitor João David Ferreira Lima, 88040-900 Florianópolis, Brazil; and Departamento de Ciências Biológicas, Centro de Ciências Humanas e Naturais, Universidade Federal do Espírito Santo, Campus de Goiabeiras 29075-910, Vitória, Brazil, e-mail:

Acknowledgments

We thank Bianca Vieira for help in collecting samples and for the suggestions for this paper. We also thank Andréa S. Freire, Manoela C. Brandão, Luis M. Soares, Marcelo Tavares, and Fernanda F. Gomes for releasing the use of the stereomicroscope. We are grateful to Paulo C. Simões-Lopes (UFSC) and Yuri L.R. Leite (UFES) for allowing us to examine vouchers under their care. We also thank three anonymous reviewers for the critical reading and valuable comments on a previous version, which helped us improve the manuscript. Dayse Dias and Rita Gomes Rocha were supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Brazil) with fellowships through the Science Without Borders Program.

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Supplemental Material

The online version of this article (DOI: 10.1515/mammalia-2014-0071) offers supplementary material, available to authorized users.

Received: 2014-5-7
Accepted: 2015-2-3
Published Online: 2015-3-6
Published in Print: 2016-3-1

©2016 by De Gruyter

Articles in the same Issue

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  2. Review
  3. The wild goat, Capra aegagrus Erxleben, 1777, of the island of Montecristo (Northern Tyrrhenian Sea, Italy): does it still exist?
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  11. Survival and recruitment of the multimammate mouse, Mastomys natalensis (Smith 1834), in a rice agro-ecosystem
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  16. Status of pinnipeds in Southeast Asia
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https://doi.org/10.1515/mammalia-2014-0071
Keywords for this article
Atlantic Forest; cytochrome b; geographic distribution; Pampa; Thylamyini

Articles in the same Issue

  1. Frontmatter
  2. Review
  3. The wild goat, Capra aegagrus Erxleben, 1777, of the island of Montecristo (Northern Tyrrhenian Sea, Italy): does it still exist?
  4. Original Studies
  5. Trophic relationships of sympatric small carnivores in fragmented landscapes of southern Brazil: niche overlap and potential for competition
  6. Dietary adaptation of white-headed langurs in a fragmented limestone habitat
  7. Winter foraging of chinkara (Gazella bennettii shikarii) in Central Iran
  8. Null model analysis on bat species co-occurrence and nestedness patterns in a region of the Atlantic Rainforest, Brazil
  9. Richness and distribution of porcupines (Erethizontidae: Coendou) from Colombia
  10. The level of rodent problems in poultry farms of Rawalpindi-Islamabad, Pakistan
  11. Survival and recruitment of the multimammate mouse, Mastomys natalensis (Smith 1834), in a rice agro-ecosystem
  12. New records of Cryptonanus guahybae (Tate, 1931) in southern Brazil inferred from molecular and morphological data
  13. Short Notes
  14. The wild goat of Montecristo Island: did it ever exist?
  15. First record of a bat from the Lakshadweep archipelago, southwestern India
  16. Status of pinnipeds in Southeast Asia
  17. Breeding habits of the Indian pangolin (Manis crassicaudata) in Potohar Plateau, Pakistan
  18. Litter size and basic diet of brown bears (Ursus arctos, Carnivora) in northeastern Turkey
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