Large Earthworm in the Bellavista Cloud Forest Reserve in Ecuador.

Annelid worm of the class Oligochaeta. Earthworms are hermaphroditic and deposit their eggs in cocoons. They live by burrowing in the soil, feeding on the organic matter it contains. They are vital to the formation of humus, aerating the soil and levelling it by transferring earth from the deeper levels to the surface as castings.

Most North American earthworms belong to the genus Lumbricus. These are comparatively small, but some tropical forms reach over 1 m/3 ft in length. Megascolides australis, of Queensland, for instance, can be over 3 m/11 ft long.

Definition found at http://encyclopedia.farlex.com/Giant+Earthworm
Origional Pictures found at http://forgetomori.com/2009/criptozoology/minhocuu-e-outras-minhocas-titnicas/