Rhagomys

 ( Rodent Genera ) 

The geographic distribution may reflect a formerly continuous distribution made disjunct by extinctions, or may reflect limited sampling of the intervening areas. While no other mammal taxa have a similar geographic distribution, a group of Hyla does. Juscelinomys is an example of another sigmodontine rodent genus that also has a disjunct distribution. Some disjunct distributions have been attributed to fluctuations in forest coverage during the Pleistocene, resulting from the climatic swings of the ice age. However, the report of molars of an unknown member of the genus in an ocelot scat sample from a geographically intermediate location suggests that the disjunct distribution may well be artifact of limited sampling.