D. albiventris is a small mammal with
black fur covering the majority of the body. The face is covered
with black and white guard hairs, predominately white. The rostrum
is long with whiskers present. These animals have a long, tapering
tail that has a leathery appearance. Sexual size dimorphism
is present in D. albiventris, with males being larger
than females. Males of this species average approximatley 800
g in mass with a body length 278 mm and a tail 315 mm long.
The average body mass of a female is 540 g with measurements
of 249 mm and 304 mm for body length and tail length, respectively.
D. albiventris is found primarily in open and deciduous
forests and mountainous areas, preferring drier habitats. D.
albiventris is largely nocturnal and spends most of the
day hiding in rocky crevices or hollow tree trunks. The nests
D. albiventris are roughly constructed of dry leaves
and grasses, which they transport using their mouths or curled
up tails. They are primarily terrestrial, but are good climbers
as well as strong swimmers.
occurs from September through May. Offspring in this genus are
born very small and undeveloped. The offspring develop in the
pouch of females for approximately 46 days.
albiventris is an omnivorous species, although invertebrates
have been found in their diet. The invertebrates consisted mainly
of insects. Fruits, seeds, and vertebrates were also found to
be a part of the diet of these animals.
D. albiventris is found in Columbia, Ecuador, Peru,
Brazil, Bolivia, Paraguay, Uruguay, and the northern half of