This is the first installment of a revision of the didelphid marsupial genus Philander,
commonly known as gray four-eyed opossums. Although abundant and widespread in …

In this report, the second of a revisionary series on mouse opossums (Marmosa), we
analyze cytochrome b sequence data from 166 specimens of the subgenus Micoureus and …

Abstract Systematic revisions of South American marsupials have contributed to our
knowledge about genus and species diversity in the last decades, including studies of the …

Marmosa subgenus Micoureus contains six currently recognized species, distributed from
southern Belize to northern Argentina. Although recent studies have demonstrated the …

Species diversification can be strongly influenced by geomorphological features, such as
mountains, valleys and rivers. Rivers can act as hard or soft barriers to gene flow depending …

The mechanisms that underlie the diversification of Neotropical primates remain contested.
One mechanism that has found support is the riverine barrier hypothesis (RBH), which …

The white-eared opossum, Didelphis albiventris Lund, 1840, is one of the most widely
distributed South American marsupials. As currently defined, the species ranges from …

Identifying the evolutionary and ecological mechanisms that drive lineage diversification in
the species-rich tropics is of broad interest to evolutionary biologists. Here, we use …

The genus Oecomys is one of the most speciose within the subfamily Sigmodontinae, with
most species found in the Amazon region. Recent studies have shown that the diversity …

The Peruvian gracile mouse opossum (Gracilinanus peruanus) is known from scattered
localities. Very little information is available on its natural history, habitat requirements and …