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The Mammals of Texas -
Online Edition
Ringtail
Order
Carnivora : Family Procyonidae
: Bassariscus astutus (Lichtenstein)
Description. A cat-sized carnivore
resembling a small fox with a long raccoon-like tail;
tail flattened, about as long as head and body, banded
with 14 to 16 alternating black and white rings (black
rings incomplete on underside), and with a black tip;
five toes on each foot, armed with sharp, curved,
non-retractile claws; upperparts fulvous, heavily
overcast with blackish; face sooty gray with large,
distinct, whitish area above and below each eye, and one
at anterior base of each ear; eye ring black; back of
ears whitish toward tip, grayish basally; underparts
whitish, tinged with buff; underfur all over plumbeous.
Dental formula as in raccoons. External
measurements average: (males), total length, 802 mm;
tail, 410 mm; hind foot, 78 mm; ear, 55 mm; (a female),
714-350-65 mm. Weight, 1-1.5 kg.
Distribution in Texas. Statewide, but
uncommon in lower Rio Grande and Coastal Plains of
southern Texas.
Habits. Ringtails live in a
variety of habitats within their range, but they have a
decided preference for rocky areas such as rock piles,
stone fences, canyon walls, and talus slopes. They occur
less commonly in woodland areas where they live in hollow
trees and logs, and they are also known to live in
buildings. They are expert climbers, capable of ascending
vertical walls, so they have little difficulty in
searching out and denning in well-protected crevices,
crannies, and hollows.
These "cats" are almost
wholly nocturnal and spend the greater part of the day
asleep in their dens and venture forth at night to feed.
Resting dens seem to differ in no essentials from nursery
dens. One nursery den found in Mason County was in a
crevice near the bottom of a rocky bluff. It was about
12.5 cm in diameter at the entrance and tapered to a
narrow crack about 75 cm beyond. A female and her four
young were occupying it at the time. No nest was
constructed for the young. In this section of Texas, rock
fences seemed to be favored denning sites. Another
nursery den found in McCulloch County was in an old
hollow stump on the side of a rocky bluff. A nest
consisting of a few dry leaves was in the bottom of the
cavity.
Ringtails eat a wide variety of foods.
In central Texas, as judged by the examination of the
digestive tracts of more than 100 ringtails, their diet
consists of small passerine birds (9.9%); small mammals
(rats, mice, squirrels, cottontails), including carrion
(24.4%); snakes and lizards (3.9%); toads and frogs
(0.2%); insects, mostly grasshoppers and crickets
(31.2%); spiders, scorpions and centipedes (11.1%); and
fruits of native plants, principally persimmon,
hackberry, and mistletoe (19.3%). The diet varies with
the season: largely birds, mammals, and fruits of
hackberry and mistletoe in winter; mammals, insects, and
juniper berries in spring; insects, spiders, scorpions,
centipedes, and persimmon fruit in summer. Insufficient
data are available to determine the food in autumn.
The breeding season appears to be
restricted to a relatively short period of the year. In
central Texas, the females appear to come into heat about
April 1. Most females examined between April 15 and May
18 were pregnant. The exact gestation period is unknown,
but it is probably about 45-50 days. In 10 females
examined, the number of embryos ranged from two to four,
averaging 3.3. At birth, the young are covered with
short, whitish hair; they are blind, the ears are closed,
and they are nearly helpless. The eyes open about 31-34
days after birth; the ears about a week earlier. The
juvenile pelage, which is similar to that of the adult
but paler and fuzzy, has replaced the natal pelage by
this time. At the age of 4 months the young are
indistinguishable from adults, except for their smaller
size.
Photo courtesy of Texas Parks and Wildlife.
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