文章基本信息

标题：Mammalia, Didelphimorphia, Didelphidae, Metachirus nudicaudatus, Municipality of Jose de Freitas, State of Piaui, Northeastern Brazil: Distribution extension.
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作者：Miranda, C. L. ; R. V. Rossi ; J. S. 等
期刊名称：Check List - Journal of Species Lists and Distribution
印刷版ISSN：1809-127X
出版年度：2009
卷号：5
期号：02
页码：360-363
出版社：Luís Felipe Toledo
摘要：The brown four-eyed opossum, Metachirus nudicaudatus (É. Geoffroy, 1803), is the only recognized species in the genus Metachirus Burmeister, 1854 (Gardner 2005). Recent studies on phylogeography, however, have shown that this opossum comprises distinct monophyletic clades with expressive genetic divergences among them (Costa 2003; Patton and Costa 2003). As these clades are also congruent with geographic units, some authors suggest that M. nudicaudatus as currently defined may represent a complex of parapatric species rather than a single species along its geographic distribution area.