VIVERRIDAE - Binturongs, Civets, Genets, Linsangs & Fossas
This family is native to southern Europe, Africa and Asia,
including Indonesia and the Philippines. Viverrids apparently
radiated on Madagascar, where there are a number of endemic
genera. The family includes 34 species currently placed in 20
genera.
Viverrids are medium-sized carnivores with long bodies and
relatively short legs. Their bodies range from around 12 inches in
length (excluding the tail, which is usually 5 in - 35 in ) to 40 in length. Weights range from slightly less than
2 lb to 30lb. Most species have relatively small heads with short,
pointed or semipointed, erect ears and a relatively long, pointed
muzzle. Their eyes are of medium size. Most species have stripes,
spots, or bands on their bodies, and their tails are often ringed
with contrasting colors, while a few are uniform in color. Their claws can be retracted. Most have
perianal (not anal) glands that produce a strong-smelling
substance; in some species the odor is sufficiently potent to ward
off predators. The secretion of these glands, called civet, is
used as a perfume base and medicine. Male viverrids have a baculum.
One genus, Arctictus, has a truly prehensile tail. They have
5 toes on each foot. Females usually have two or three pairs
of abdominal mammae.
The head of most viverrids is long and flattened. The second lower
incisor
appears to be slightly out of (raised above) the line defined by
the incisor row. The carnassials
are well developed. Their last
upper molar is not constricted in the middle, as it is in most
members of the family Mustelidae.
The dental
formula is 3/3, 1/1, 3-4/3-4, 1-2/1-2 = 32-40. In the auditory
bullae, the demarcation between ectotympanic
and entotympanic
parts of the bullae is clear, and in this family it is oblique to
the long axis of the skull (it is perpendicular to that axis in
members of the family Herpestidae).
The ectotympanic part of the bullae is much smaller than the
entotympanic part. Unlike the condition in herpestids, a median
lacerate foramen is absent.
Viverrids are essentially forest inhabitants, but they also
live in dense brush and thick grass. They are either diurnal
or nocturnal and shelter in any convenient retreat, usually a hole
in a tree, a tangle of vines, ground cover, a cave, a crevice or a
burrow. Those species living near people sometime seek
refuge under rafters or in the drains of houses.
Viverrids will fight when cornered. They seek their prey
in trees and on the ground, either by stalking or by pouncing on
it from a hiding place. They eat small
vertebrates (including carrion), insects, and other invertebrates
including worms, crustaceans, and molluscs. Some species are
probably strictly carnivorous and have the reputation of fierce
and effective predators; others also include fruit and roots in
their diets. Sightings of most species usually involve one or at
most two individuals; viverrids generally do not associate in
larger groups. Most are strongly arboreal, but a few species
seldom climb. Their
senses of sight, smell, and hearing are all well developed.
Most species have a potential longevity of 5-15 years.
While this is a large group with many species, the habits of a
surprising number are poorly known.
The geological range of this family is late Eocene to Recent in
Europe, early Oligocene to Recent in Asia, early Miocene to Recent
in Africa, and Pleistocene to Recent in Madagascar.
Information taken from Walker's mammals of
the World Fifth Edition
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