Lumbricus rubellus
Lumbricus rubellus, also commonly referred to as the red earthworm, redhead worm, and red wriggler is a species of earthworm. It is referred to as this due to its reddish, brown color. Red earthworms are known as efficient composters and also tend to be a popular choice as bait for fishing.

Taxonomy
Kingdom: Animalia
Phylum: Annelida
Class: Clitellata
Order: Haplotaxida
Family: Lumbricidae
Genus: Lumbricus
Overview
Lumbricus rubellus is a medium sized (10-15 cm) worm that is partially pigmented and epi-endogeic. The mean biomass of Lumbricus rubellus is reported to be 1.89 g.