Scientific Classification

Common Name

Eastern blue-tongued skink, blue-tongued lizard

Kingdom

Animalia

Phylum

Chordata

Class

Reptilia

Order

Squamata

Family

Scincidae

Genus Species

Tiliqua (meaning unknown) scincoides (shaped lizard)

Fast Facts

Description

This is the largest member of the skink family. Its body is long and tubular, with short legs and a short tail. The head is triangular and broad. This skink is very well known for its long, bright blue tongue.

Size

Total length of approximately 60 cm (24 in.)

Weight

283-510 g (10-18 oz.)

Diet

Blue-tongued skinks are omnivores, meaning they feed on a variety of plants and animals. Their diet includes insects, worms, snails, flowers, fruits, and berries.

Incubation

100 days; generally give birth in mid-summer

Females are ovoviviparous ("egg-live birth") - the mother produces egg cases, which she then carries inside her. After the eggs hatch internally, she expels the live young.

Clutch Size: 6-12 live young

Sexual Maturity

18-24 months

Life Span

May be in excess of 20 years

Range

Native to Australia and New Guinea

Habitat

Include grasslands, forests, rainforests, and deserts

Population

Global: No data

Status 

IUCN: Not listed
CITES: Not listed
USFWS: Not listed

Fun Facts

1. Blue-tongued skinks spend the majority of their day searching the ground for food and basking in the sun. At night they seek shelter in logs, leaf litter, or other ground debris.
2. When threatened, the blue-tongued skink puffs up its body, sticks out its long, blue tongue, and hisses. If the intended target is unimpressed, the wide-bodied skink hisses, and then flattens out its body in hopes of appearing too large to attack.
3. Blue-tongues do not have well-developed teeth, but are capable of a powerful bite. They also have a habit of not letting go, contributing considerably to the pain.
4. The skink's overlapping scales help keep out dirt, sand, and other debris. Healthy adults usually shed every six weeks. Shedding takes a considerable amount of energy, greatly reducing regular food metabolism.
5. The skink's overlapping scales help keep out dirt, sand, and other debris. Healthy adults usually shed every six weeks. Shedding takes a considerable amount of energy, greatly reducing regular food metabolism.

Ecology and Conservation

Blue-tongued skinks are common in the pet trade and are sometimes released into wild, non-indigenous areas when their owners tire of them. This has led to some competition for the native wildlife.

In their native region, they are very common, however they are often killed because of a superficial resemblance to the death adder, a very poisonous snake. In long grass, the blue-tongued skink's head is not readily discernable from the adder.

Skinks serve as predators for invertebrates, helping to maintain insect populations. They are also prey for other animals.

Bibliography

Brun, John F. Encyclopedia of Reptiles and Amphibians. Hong Kong: T.F.H. Publications, 1974.

Coborn, John. Snakes and Lizards: Their Care and Breeding in Captivity. Sanibel Island: R. Curtis Books, 1987.

Mattison, Chris. Lizards of the World. New York: Facts on File Publications, Inc., 1989.

Rogner, Manfred. Lizards. Vol. 2. Malabar, Florida: Krieger Publishing Co., 1994.

Wynne, Richard H. Lizards in Captivity. New Jersey: T.F.H. Publications, Inc., 1981.

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