The giant Gippsland earthworms average 1 meter (3.3 ft) long and 2 centimeters (0.79 in) in diameter and can reach 2 meters (9.8 ft) in length.
The Giant Gippsland Earthworm Megascolides australis is only found in small areas of South and West Gippsland, Victoria. It is one of the largest earthworms in the world, often exceeding one meter in length. It is rarely seen due to its underground life cycle but sometimes can be heard as it moves beneath the ground.
This species requires careful conservation measures as it is difficult to study and can easily be damaged due to handling. It is also a species that dies in captivity and is not suitable for captive breeding, making it even more important to retain existing populations. As the development of land continues in West Gippsland special care is required to ensure the Giant Gippsland Earthworm continues to survive.
The Giant Gippsland Earthworm has a purple-colored head region and pinkish-grey body. It has a diameter of up to 2 cm and usually a body length of 80 to 150 cm although specimens of up to 2 meters have been recorded.