Euryoryzomys emmonsae

Euryoryzomys emmonsae.
Euryoryzomys emmonsae, Emmons's rice rat, is a rodent from the Amazon rainforest of Brazil in the genus Euryoryzomys of the family Cricetidae. Initially misidentified as E. macconnelli or E. nitidus, it was formally described in 1998. A ground-dwelling rainforest species, it may also be adapted to climbing trees. It occurs in a limited area south of the Amazon River in the state of Pará, a distribution that is apparently unique among the muroid rodents of the region. E. emmonsae is a relatively large rice rat, weighing 46 to 78 g (1.6 to 2.8 oz), with long, tawny brown fur and a distinctly long tail. The skull is slender and the incisive foramina (openings in the bone of the palate) are broad. The animal has 80 chromosomes, and its karyotype is typical of its genus. Its conservation status is listed as data deficient, meaning more information is needed, but deforestation may pose a threat to the species. Its name honors Louise H. Emmons, who, among other contributions to Neotropical mammalogy, collected three of the known examples of the species in 1986.